| |
 |
|
|
|
|
Technology Offer |
 |
 |
|
|
 |
|
| Title : POWER SUPPLY APPARATUS USING HALF-BRIDGE CIRCUIT |
|
Status |
Patented |
Part |
Elec/ET |
|
Conditon |
Licensing |
Estimated Cost |
0 US$ |
|
|
US patetn registeres. JP, CN, PCT pending
It is an object of the present invention to provide a power supply apparatus using a half-bride circuit usable in a ballast or an inverter, capable of improving an output control dynamic characteristic by varying a frequency and controlling a pulse width.
Disclosed is a power supply apparatus using a half-bridge type driving circuit, which is intended for the purpose of the compensation of a power factor, the achievement of a low crest factor and the maintenance of a constant output. The power supply apparatus using a half-bridge circuit for rectifying an AC power source and providing the rectified power source to a load includes a line voltage detecting means for detecting a voltage of an input power source provided to the load, an error amplifying means for comparing the voltage detected from the line voltage detecting means with a reference voltage and outputting a voltage corresponding to a difference therebetween, a pulse width modulating means for outputting a pulse having a variable width corresponding to an output level of the error amplifying means, a dead time controlling means for outputting a first pulse corresponding to a high side and a second pulse corresponding to a low side by the pulse output from the pulse width modulating means, wherein the first and second pulses have different pulse widths and different rising and falling time points, and a driving means for driving the power source supplied to the load as a constant current state by the first and second pulses.
|
 Images 1)
av.TIF |
| |
|
|
|
 |
 |
|
 |
|
|
 |
DOWON INTERNATIONAL
5F. Shinwon Bldg. 823-14, Yeoksam-dong, Kangnam-ku, SEOUL, 135-080
KOREA
PHONE : 82-2-501-3106 FAX : 82-2-501-3109 e-mail : patyellow@dowon.com
|
|
|
|
|
