Charge pump power factor correction circuit for power supply for gas discharge lamp
First Claim
1. An electric power source device comprising:
- a power converting circuit including a rectifier element for rectifying an input from an alternating current power source, a smoothing capacitor for smoothing an output from the rectifier element with a direct current, and a switching means for generating a high frequency voltage and a high frequency current in response to receipt of a voltage on the smoothing capacitor; and
a load circuit for receiving an output from the power converting circuit;
said power converting circuit comprising;
a current source type input current capturing means for capturing an input current from the alternating current power source by the utilization of a current oscillation of one of high frequency current loops generated in a circuit as a result of alternate switching on and off of the switching means, said one of high frequency current loops including said load circuit; and
a voltage source type input current capturing means for capturing an input current from the alternating current power source by the utilization of a voltage oscillation in one of high frequency voltage nodes generated in the circuit as a result of alternate switching on and off of the switching means, the voltage of said one of high frequency voltage nodes varying in accordance with an output voltage to said load circuit.
3 Assignments
0 Petitions
Accused Products
Abstract
An electric power source device includes a power converting circuit and a load circuit (LD) for receiving an output from the power converting circuit. The power converting circuit includes a rectifier element (DB) for rectifying an input from an alternating current source (AC), a smoothing capacitor (Ce) for smoothing an output from the rectifier element (DB) with a direct current, and switching elements (Q1, Q2) for generating high frequency voltage and current in response to receipt of a voltage of the smoothing capacitor (Ce). The power converting circuit makes use of a current source type charge pump (CSCP) for capturing an input current from the alternating current source (AC) by the use of one of high frequency current loops generated in the circuit as a result of switching on and off of the switching elements (Q1, Q2), and a voltage source type charge pump (VSCP) for capturing the input current from the alternating current source (AC) by the use of one of high frequency voltage nodes generated in the circuit as a result of the switching on and off of the switching elements (Q1, Q2).
39 Citations
46 Claims
-
1. An electric power source device comprising:
-
a power converting circuit including a rectifier element for rectifying an input from an alternating current power source, a smoothing capacitor for smoothing an output from the rectifier element with a direct current, and a switching means for generating a high frequency voltage and a high frequency current in response to receipt of a voltage on the smoothing capacitor; and a load circuit for receiving an output from the power converting circuit;
said power converting circuit comprising;a current source type input current capturing means for capturing an input current from the alternating current power source by the utilization of a current oscillation of one of high frequency current loops generated in a circuit as a result of alternate switching on and off of the switching means, said one of high frequency current loops including said load circuit; and a voltage source type input current capturing means for capturing an input current from the alternating current power source by the utilization of a voltage oscillation in one of high frequency voltage nodes generated in the circuit as a result of alternate switching on and off of the switching means, the voltage of said one of high frequency voltage nodes varying in accordance with an output voltage to said load circuit. - View Dependent Claims (2, 8, 12, 17, 19, 20, 21, 46)
-
-
3. An electric power source device comprising:
-
a power converting circuit including a rectifier element for rectifying an input from an alternating current power source, a smoothing capacitor for smoothing an output from the rectifier element with a direct current, and a switching means connected parallel to the smoothing capacitor and including series-connected switching elements capable of being switched on and off in response to receipt of a voltage from the smoothing capacitor, a resonant circuit including a resonant inductor and a resonant capacitor connected in series with the resonant inductor, a junction between the switching elements being connected with one end of the resonant circuit adjacent the resonant inductor, the opposite end of the resonant circuit adjacent the resonant capacitor being connected with one of the outputs of the rectifier element; and a load circuit connected parallel to the resonant capacitor of the resonant circuit; said power converting circuit comprising; a voltage source type input current capturing means including a first rectifier diode connected in a forward going fashion between one of the outputs of the rectifier elements and one end of the smoothing capacitor, and a first charge capacitor connected between a junction of the resonant inductor with the resonant capacitor and a junction of the rectifier element and the first rectifier diode; and a current source type input current capturing means including a second rectifier diode connected in a forward going fashion between the other of the outputs of the rectifier element and the other end of the smoothing capacitor, and a second charge capacitor connected parallel to the second rectifier diode, and the junction of the rectifier element with the second rectifier diode is the junction of the resonant capacitor with the rectifier element. - View Dependent Claims (4, 5, 6, 7)
-
-
9. An electric power source device comprising:
-
a power converting circuit including a rectifier element for rectifying an input from an alternating current power source, a smoothing capacitor for smoothing an output from the rectifier element with a direct current, and a switching means connected parallel to the smoothing capacitor and including series-connected switching elements capable of being switched on and off in response to receipt of a voltage from the smoothing capacitor, a first resonant circuit connected parallel to one of the switching elements and including a first resonant inductor and a first resonant capacitor connected in series with the first resonant inductor, a second resonant circuit including a second resonant inductor and a second resonant capacitor connected in series with the second resonant inductor, said second resonant circuit being connected between a junction of the first resonant inductor with the first resonant capacitor and a one of outputs of the rectifier element; and a load circuit connected parallel to the second resonant capacitor of the second resonant circuit; said power converting circuit comprising; a voltage source type input current capturing means including a first rectifier diode connected in a forward going fashion between one of the outputs of the rectifier elements and one end of the smoothing capacitor, and a first charge capacitor connected between a junction of the first resonant inductor with the first resonant capacitor and a junction of the rectifier element and the first rectifier diode; and a current source type input current capturing means including a second rectifier diode connected in a forward going fashion between the other of the outputs of the rectifier element and the other end of the smoothing capacitor, and a second charge capacitor connected parallel to the second rectifier diode, and the junction of the rectifier element with the second rectifier diode is the junction of the second resonant capacitor with the rectifier element. - View Dependent Claims (10, 11)
-
-
13. An electric power source device comprising:
-
a power converting circuit including a rectifier element for rectifying an input from an alternating current power source, a smoothing capacitor for smoothing an output from the rectifier element with a direct current, and a switching means connected parallel to the smoothing capacitor and including series-connected switching elements capable of being switched on and off in response to receipt of a voltage from the smoothing capacitor, a resonant circuit including a resonant inductor and a resonant capacitor connected in series with the resonant inductor, a junction between the series-connected switching elements being connected with one end of the resonant circuit adjacent the resonant inductor; and a load circuit connected parallel to the resonant capacitor of the resonant circuit; said power converting circuit comprising; a voltage source type input current capturing means including first and second rectifier diodes connected in series with each other in a forward going fashion between one end of outputs of the rectifier element and one end of the smoothing capacitor, and a first charge capacitor connected from a junction between the first and second rectifier diodes to a junction between the resonant inductor and the resonant capacitor; and a current source type input current capturing means including third and fourth rectifier diode connected in series with each other in a forward going fashion between said outputs of the rectifier element and said end of the smoothing capacitor, and a second charge capacitor connected parallel to one of the third and fourth rectifier diodes, a junction between the third and fourth rectifier diodes being connected with one end of the resonant capacitor adjacent a non-resonant inductor. - View Dependent Claims (14, 44, 45)
-
-
15. An electric power source device comprising:
-
a power converting circuit including a rectifier element for rectifying an input from an alternating current power source, a smoothing capacitor for smoothing an output from the rectifier element with a direct current, and a switching means connected parallel to the smoothing capacitor and including series-connected switching elements capable of being switched on and off in response to receipt of a voltage from the smoothing capacitor, a resonant circuit including a resonant inductor and a resonant capacitor connected in series with the resonant inductor, one end of the resonant circuit adjacent the resonant inductor being connected with a junction of the series-connected switching elements; and a load circuit connected parallel to the resonant capacitor of the resonant circuit; said power converting circuit comprising; a current source type input current capturing means including first and second rectifier diodes connected in series with each other between one of the outputs of the rectifier element and one end of the smoothing capacitor, and a first charge capacitor connected between a junction of the first and second rectifier diodes and a junction of the switching elements; and a voltage source type input current capturing means for capturing an input current from the alternating current power source by the utilization of a voltage oscillation at one of high frequency voltage nodes generated in the power converting circuit as a result of switching on and off of the switching means. - View Dependent Claims (16)
-
-
18. An electric power source device which comprises:
a power converting circuit including a rectifier element for rectifying an input from an alternating current power source, a smoothing capacitor for smoothing an output from the rectifier element with a direct current, a switching element capable of being switched on and off at high frequency in response to receipt of a voltage from the smoothing capacitor, a resonant circuit including a resonant inductor and a resonant capacitor connected in series with the resonant inductor, a first series circuit connected parallel to the smoothing capacitor and including a first inductor and the switching element, the resonant capacitor connected equivalently parallel to the switching element, a second series circuit which is said resonant circuit being connected with a junction between the first inductor and the switching element and including a coupling capacitor, a second inductor included in said resonant circuit and a load circuit all connected in series with each other; said power converting circuit comprising; a voltage source type input current capturing means including a first rectifier diode connected from one of the outputs of the rectifier element to one end of the smoothing capacitor, and a first charge capacitor connected from a junction between the first rectifier diode and the rectifier element to a junction between the load circuit and the second inductor; and a current source type input current capturing means including a second rectifier diode connected from the other of the outputs of the rectifier element to the other end of the smoothing capacitor, and a second charge capacitor connected parallel to the second rectifier diode, a junction between the rectifier element and the second rectifier diode being connected with one end of the load circuit.
-
22. An electric power source device which comprises:
-
a power converting circuit including a rectifier element for rectifying an input from an alternating current power source, a switching means including a pair of switching elements connected in series with each other and capable of being switched on and off at a high frequency and connected parallel to the outputs of the rectifier element, and a resonant circuit including a resonant inductor and a resonant capacitor connected in series with the resonant inductor and having one end adjacent the resonant inductor connected with a junction between the switching elements of the pair; and a load circuit connected parallel to the resonant capacitor; said power converting circuit comprising; a current source type input capturing means including a series circuit connected parallel to the series connected switching elements of the pair and including a smoothing capacitor and a first charge capacitor connected in series with each other, and a first rectifier diode connected between one of outputs of the rectifier element and one end of the switching elements, said resonant circuit being connected between a junction of the switching elements and a junction of the smoothing capacitor with the charge capacitor; and a voltage source type input current capturing means for capturing an input current from the alternating current power source by the utilization of a voltage oscillation at one of high frequency voltage nodes generated in the power converting circuit as a result of switching on and off of the switching means. - View Dependent Claims (23, 24, 25, 26)
-
-
27. An electric power source device which comprises:
-
a power converting circuit including a rectifier element for rectifying an input from an alternating current source, a smoothing capacitor for smoothing an output from the rectifier element with a direct current, and a switching means for generating a high frequency voltage and a high frequency current in response to receipt of a voltage from the smoothing capacitor; and a load circuit for receiving an output from the power converting circuit; said power converting circuit comprising; a first current source type input current capturing means for capturing an input current from the alternating current power source by the utilization of a current oscillation in a first high frequency current loop generated in the circuit as a result of switching on and off of the switching means; and a second current source type input current capturing means for capturing an input current from the alternating current power source by the utilization of a current oscillation in a second high frequency current loop generated in the circuit as a result of switching on and off of the switching means.
-
-
28. An electric power source device which comprises:
-
a power converting circuit including a rectifying element for rectifying an input from an alternating current power source, a smoothing capacitor for smoothing an output from the rectifier element with a direct current, a switching element connected parallel to the smoothing capacitor and including series-connected switching elements capable of being switched on and off at a high frequency in response to receipt of a voltage from the smoothing capacitor, and a resonant circuit including a resonant inductor and a resonant capacitor connected in series with the resonant inductor, a junction between the switching elements being connected with one end of the resonant circuit adjacent the resonant inductor; and a load circuit connected parallel to the resonant capacitor; the power converting circuit comprising; a first current source type input current capturing means including first and second rectifier diodes connected in series with each other between one of the outputs of the rectifier element and one end of the smoothing capacitor, and a first charge capacitor connected from a junction between the first and second rectifier diodes to a junction between the switching elements; and a second current source type input current capturing means for capturing the input current from the alternating current power source by the utilization of a current oscillation at one of high frequency current loops generated in the power converting circuit as a result of switching on and off the switching means.
-
-
29. An electric power source device which comprises:
-
a power converting circuit including a rectifier element for rectifying an input from an alternating current power source, a switching means connected parallel to a smoothing capacitor and including series-connected switching elements capable of being switched on and off at a high frequency in response to receipt of a voltage from the smoothing capacitor, and a resonant circuit including a resonant inductor and a resonant capacitor connected in series with the resonant inductor, said resonant circuit having one end adjacent the resonant inductor connected with a junction between the switching elements; and a load circuit connected parallel to the resonant capacitor; the power converting circuit comprising; a first current source type input current capturing means including first and second rectifier diodes connected in series with each other in a forward going fashion between one of the outputs of the rectifier element and one end of the smoothing capacitor, and a first charge capacitor connected between a junction of the first and second rectifier diodes and the junction of the switching elements; and a second current source type input current capturing means including third and fourth rectifier diodes connected between any one of the outputs of the rectifier element and any one of the ends of the smoothing capacitor, and a second charge capacitor connected parallel to one of the third and fourth rectifier diodes which is connected with the smoothing capacitor, a junction between the third and fourth rectifier diodes and a non resonant inductor end of the resonant capacitor being connected with each other. - View Dependent Claims (30)
-
-
31. An electric power source device which comprises:
-
a power converting circuit including a rectifier element for rectifying an input from an alternating current power source, a switching means connected parallel to a smoothing capacitor and including series-connected switching elements capable of being switched on and off at a high frequency in response to receipt of a voltage from the smoothing capacitor, and a resonant circuit including a resonant inductor and a resonant capacitor connected in series with the resonant inductor, said resonant circuit having one end adjacent the resonant inductor connected with a junction between the switching elements; and a load circuit connected parallel to the resonant capacitor; the power converting circuit comprising; a first current source type input current capturing means including a first charge capacitor connected parallel to the series-connected switching elements and in series with the smoothing capacitor, and a first rectifier diode connected between one of the outputs of the rectifier element and one end of the switching elements said resonant capacitor and a non-inductor end of the load circuit being connected with a junction between the series-connected smoothing capacitor and charge capacitor; and a second current source type input current capturing means for capturing an input current from the alternating current source by the utilization of a current oscillation in a high frequency current loop generated in the circuit as a result of switching on and off of the switching means.
-
-
32. An electric power source device which comprises:
-
a power converting circuit including a rectifier element for rectifying an input from an alternating current power source, a switching means including series-connected switching elements capable of being switched on and off at a high frequency in response to receipt of a voltage from a smoothing capacitor, and a resonant circuit including a resonant inductor and a resonant capacitor connected in series with the resonant inductor, said resonant circuit having one end adjacent the resonant inductor connected with a junction between the switching elements; and a load circuit connected parallel to the resonant capacitor; the power converting circuit comprising; a first current source type input current capturing means including first and second rectifier diodes connected in series with each other between one of the outputs of the rectifier element and one end of the smoothing capacitor, and a first charge capacitor connected parallel to one of the first and second rectifier diodes which is connected with the smoothing capacitor, and one of the ends of the switching means connected between the junction of the first rectifier diode with the second rectifier diode; a second current source type input capturing means for capturing an input current from the alternating current source by the utilization of a current oscillation in a high frequency current loop generated in the circuit as a result of switching on and off of the switching means. - View Dependent Claims (33, 34, 35, 36, 37, 38)
-
-
39. A power source device which comprises:
a power converting circuit including a rectifier element for rectifying an input from an alternating current power source, a smoothing capacitor for smoothing an output from the rectifier element with a direct current, a first switching means including series-connected first and second switching elements connected respectively with high and low voltage sides, a second switching means including series-connected third and fourth switching elements connected respectively with the high and low voltage sides, an output circuit connected from a junction between the first and second switching elements to a junction between the third and fourth switching elements and including an output inductor and an output capacitor connected in series with the output inductor, and a load circuit connected parallel to the output capacitor; and said power converting circuit comprising; a first current source type input current capturing means including series-connected first and second rectifier diodes connected between one of the outputs of the rectifier element and one end of the smoothing capacitor, and a first charge capacitor connected parallel to one of the first and second rectifier diodes which is connected with the smoothing capacitor; and a second current source type input current capturing means including series-connected third and fourth rectifier diodes connected between the other of the outputs of the rectifier element and the other end of the smoothing capacitor, and a second charge capacitor connected parallel to one of the third and fourth rectifier diodes which is connected with the smoothing capacitor; and at least one of the switching means being connected between a junction of the first and second rectifier diodes and a junction of the third and fourth rectifier diodes. - View Dependent Claims (40, 41, 42, 43)
Specification