POWER SWITCHING DRIVING APPARATUS, AND POWER FACTOR CORRECTION DEVICE AND POWER SUPPLY DEVICE HAVING THE SAME
First Claim
1. A power switching driving apparatus comprising:
- a first driving unit providing a switching signal in response to a control signal from the outside;
a second driving unit including a first N-type channel metal oxide semiconductor field effect transistor (NMOS FET) and a second NMOS FET cascode-connected between an operational power source terminal supplying pre-set operation power and a ground, and performing switching complimentarily in response to the switching signal to provide a switching control signal controlling power switching;
a current supply unit supplying a current required for driving the second driving unit; and
a voltage maintaining unit maintaining a voltage required for driving the second driving unit.
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Abstract
There are provided a power switching driving apparatus able to reduce a circuit area and increase a driving speed, and a power factor correction device and a power supply device having the same. The power switching driving apparatus includes: a first driving unit providing a switching signal in response to a control signal from the outside; a second driving unit including first and second NMOS FETs cascode-connected between an operational power source terminal supplying pre-set operation power and a ground, and performing switching complimentarily in response to the switching signal to provide a switching control signal controlling power switching; a current supply unit supplying a current for driving the second driving unit; and a voltage maintaining unit maintaining a voltage for driving the second driving unit.
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Citations
21 Claims
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1. A power switching driving apparatus comprising:
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a first driving unit providing a switching signal in response to a control signal from the outside; a second driving unit including a first N-type channel metal oxide semiconductor field effect transistor (NMOS FET) and a second NMOS FET cascode-connected between an operational power source terminal supplying pre-set operation power and a ground, and performing switching complimentarily in response to the switching signal to provide a switching control signal controlling power switching; a current supply unit supplying a current required for driving the second driving unit; and a voltage maintaining unit maintaining a voltage required for driving the second driving unit. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A power factor correction device comprising:
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a power factor correction unit correcting a power factor by switching rectified power in response to a switching control signal; and a power switching driving apparatus including a first driving unit providing a switching signal in response to a control signal from the outside, and a second driving unit including a first NMOS FET and a second NMOS FET cascode-connected between an operational power source terminal supplying pre-set operation power and a ground, and performing switching complimentarily according to the switching signal to provide the switching control signal. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A power supply device comprising:
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a power conversion unit switching input power in response to a switching control signal to output pre-set driving power; and a power switching driving apparatus including a first driving unit providing a switching signal in response to a control signal from the outside, and a second driving unit including a first NMOS FET and a second NMOS FET cascode-connected between an operational power source terminal supplying pre-set operation power and a ground and performing switching complimentarily according to the switching signal to provide the switching control signal. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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Specification