UNI-DIRECTIONAL LIGHT EMITTING DIODE DRIVE CIRCUIT IN PULSED POWER NON-RESONANCE
First Claim
1. A uni-directional light emitting diode drive circuit in pulsed power non-resonance, which is that a pulsed power is used as the power source, the first impedance is constituted by capacitive impedance component, or inductive impedance component or resistive impedance component, and capacity impedance and inductive impedance are in parallel connection whereof their parallel resonance frequency is different from the pulse period of the pulsed power, thereby to constitute the second impedance without parallel resonance, whereof the two ends of the first impedance and the second impedance in series connection are provided to receive a DC pulsed power input as power source which includes the following:
- 1) DC pulsed power;
or2) The DC pulsed power with constant or variable voltage and constant or variable periods converted from DC power source;
or3) The DC pulsed power with constant or variable voltage and constant or variable periods converted from DC power which is further rectified from AC power;
or4) The half-wave or full-wave DC pulsed power rectified from AC power with constant or variable voltage and constant or variable frequency;
The first impedance and the second impedance in series connection are provided to divide the inputted DC pulsed voltage, whereby to form a bi-directional divided alternated power across the two ends of the second impedance, whereof the divided power at the second impedance is rectified by a rectifier device to an uni-directional DC power to drive an uni-directional conducting light emitting diode, and it is characterized in that the volume and weight of the circuit can be effectively reduced as well as the cost can be lowered for the uni-directional light emitting diode drive circuit in pulsed power non-resonance in high frequency pulsed power applications;
The first impedance, the second impedance, the rectifier device and the uni-directional conducting light emitting diode set as well as the light emitting diode and various optional auxiliary circuit components are based on application needs, whereof they can be optionally installed or not installed as needed and the installation quantity include constitution by one, wherein if more than one are selected, the corresponding polarity relationship shall be determined based on circuit function requirement to execute series connection, or parallel connection or series and parallel connections.
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Abstract
The present invention uses the capacitive, inductive, or resistive impedance component to constitute the first impedance, and uses the inductive impedance component and capacitive impedance component which will not produce parallel resonance after parallel connection to constitute the second impedance, whereby the first impedance and the second impedance are series connected for inputting pulsed DC power, and the divided power generated at the two ends of the first or second impedance is rectified to drive the uni-directional light emitting diode.
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Citations
19 Claims
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1. A uni-directional light emitting diode drive circuit in pulsed power non-resonance, which is that a pulsed power is used as the power source, the first impedance is constituted by capacitive impedance component, or inductive impedance component or resistive impedance component, and capacity impedance and inductive impedance are in parallel connection whereof their parallel resonance frequency is different from the pulse period of the pulsed power, thereby to constitute the second impedance without parallel resonance, whereof the two ends of the first impedance and the second impedance in series connection are provided to receive a DC pulsed power input as power source which includes the following:
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1) DC pulsed power;
or2) The DC pulsed power with constant or variable voltage and constant or variable periods converted from DC power source;
or3) The DC pulsed power with constant or variable voltage and constant or variable periods converted from DC power which is further rectified from AC power;
or4) The half-wave or full-wave DC pulsed power rectified from AC power with constant or variable voltage and constant or variable frequency; The first impedance and the second impedance in series connection are provided to divide the inputted DC pulsed voltage, whereby to form a bi-directional divided alternated power across the two ends of the second impedance, whereof the divided power at the second impedance is rectified by a rectifier device to an uni-directional DC power to drive an uni-directional conducting light emitting diode, and it is characterized in that the volume and weight of the circuit can be effectively reduced as well as the cost can be lowered for the uni-directional light emitting diode drive circuit in pulsed power non-resonance in high frequency pulsed power applications; The first impedance, the second impedance, the rectifier device and the uni-directional conducting light emitting diode set as well as the light emitting diode and various optional auxiliary circuit components are based on application needs, whereof they can be optionally installed or not installed as needed and the installation quantity include constitution by one, wherein if more than one are selected, the corresponding polarity relationship shall be determined based on circuit function requirement to execute series connection, or parallel connection or series and parallel connections. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification