基本信息:
- 专利标题: 控制脈衝寬度調變電路閂鎖模式的電路及其方法
- 专利标题(英):Circuit for controlling a latch mode of a pulse width modulation circuit and method thereof
- 专利标题(中):控制脉冲宽度调制电路闩锁模式的电路及其方法
- 申请号:TW101128957 申请日:2012-08-10
- 公开(公告)号:TW201407942A 公开(公告)日:2014-02-16
- 发明人: 鄒明璋 , TSOU, MING CHANG , 楊豐誠 , YANG, FONG CHENG , 周順欽 , CHOU, SHUN CHIN
- 申请人: 通嘉科技股份有限公司 , LEADTREND TECHNOLOGY CORP.
- 申请人地址: 新竹市
- 专利权人: 通嘉科技股份有限公司,LEADTREND TECHNOLOGY CORP.
- 当前专利权人: 通嘉科技股份有限公司,LEADTREND TECHNOLOGY CORP.
- 当前专利权人地址: 新竹市
- 代理人: 吳豐任; 戴俊彥
- 主分类号: H02M1/32
- IPC分类号: H02M1/32
A circuit for controlling a latch mode of a pulse width modulation circuit includes a D flip-flop, a voltage generation unit, a comparator, and a logic unit. The D flip-flop generates a switch control signal according to a latch enable signal. The voltage generation unit includes a voltage divider resistor group. The voltage generation unit generates a discharge current, and the voltage divider resistor group generates a first voltage when the voltage generation unit is turned on according to the switch control signal. A voltage of a predetermined pin of the pulse width modulation circuit is equal to a predetermined voltage when the discharge current is equal to the charge current. The comparator compares a reference voltage and the first voltage to generate a comparison signal. The logic unit generates a clear signal according to the comparison signal. The D flip-flop clears the switch control signal according to the clear signal.
公开/授权文献:
- TWI481168B 控制脈衝寬度調變電路閂鎖模式的電路及其方法 公开/授权日:2015-04-11
信息查询:
EspacenetIPC结构图谱:
H | 电学 |
--H02 | 发电、变电或配电 |
----H02M | 用于交流和交流之间、交流和直流之间、或直流和直流之间的转换以及用于与电源或类似的供电系统一起使用的设备;直流或交流输入功率至浪涌输出功率的转换;以及它们的控制或调节 |
------H02M1/00 | 变换装置的零部件 |
--------H02M1/32 | .除自动断开以外的用于保护变换器的装置 |