| 发明名称 |
POWER SUPPLY DEVICE AND IMAGE FORMING APPARATUS HAVING THE SAME |
| 摘要 |
A power supply device includes a transformer including primary winding and secondary winding, a sensor configured to sense at least one of output voltage and output current in the power supply device, a pulse width modulation (PWM) controller configured to perform PWM switching so that voltage is selectively provided to the primary winding based on one of the sensed output voltage and output current, and a regulator configured to stop PWM switching of the PWM controller and keep the PWM switching in stopped state when at least one of the sensed output voltage and output current exceeds a preset value. |
| 申请公布号 |
US2015222190(A1) |
申请公布日期 |
2015.08.06 |
| 申请号 |
US201414560564 |
申请日期 |
2014.12.04 |
| 申请人 |
Samsung Electronics Co., Ltd. |
发明人 |
YIM Kwan-bin |
| 分类号 |
H02M3/335;H02M1/32;G06K15/00;H02M1/088 |
主分类号 |
H02M3/335 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A power supply device, comprising:
a transformer comprising primary winding and secondary winding; a sensor configured to sense at least one of output voltage and output current of the power supply device; a pulse width modulation (PWM) controller configured to perform PWM switching so that voltage is selectively provided to the primary winding based on at least one of the sensed output voltage and sensed output current; and a regulator configured to stop PWM switching of the PWM controller and keep the PWM switching in stopped state when at least one of the sensed output voltage and sensed output current exceeds a preset value. |
| 地址 |
Suwon-si KR |
