Invention Application
US20170070224A1 WAVE LOSS DETECTION CIRCUIT FOR DRIVE SIGNAL AND SWITCHING TRANSISTOR DRIVE CIRCUIT
审中-公开
用于驱动信号和开关晶体管驱动电路的波形失效检测电路
- Patent Title: WAVE LOSS DETECTION CIRCUIT FOR DRIVE SIGNAL AND SWITCHING TRANSISTOR DRIVE CIRCUIT
- Patent Title (中): 用于驱动信号和开关晶体管驱动电路的波形失效检测电路
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Application No.: US15354488Application Date: 2016-11-17
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Publication No.: US20170070224A1Publication Date: 2017-03-09
- Inventor: Zhen CAO , Yunfeng LIU , Yanzhong ZHANG
- Applicant: HUAWEI TECHNOLOGIES CO., LTD.
- Applicant Address: CN Shenzhen
- Assignee: HUAWEI TECHNOLOGIES CO., LTD.
- Current Assignee: HUAWEI TECHNOLOGIES CO., LTD.
- Current Assignee Address: CN Shenzhen
- Priority: CN201410211063.1 20140519
- Main IPC: H03K17/567
- IPC: H03K17/567 ; H03K7/08 ; H03B28/00 ; H03K4/08
Abstract:
A wave loss detection circuit includes: an anode of the diode receives a first drive signal, and a cathode of the diode is connected to a first end of the first resistor; a second end of the first resistor is connected to a first end of the first energy storage unit, a first end of the second resistor, and a first input end of the comparison unit; a second end of the first energy storage unit and a second end of the second resistor are connected to a ground level, and a resistance of the first resistor is less than a resistance of the second resistor; a second input end of the comparison unit is configured to receive a threshold voltage, and if a voltage signal received by the first input end is less than the threshold voltage, which indicates that a wave loss occurs in the first drive signal.
Public/Granted literature
- US10355687B2 Wave loss detection circuit for drive signal and switching transistor drive circuit Public/Granted day:2019-07-16
Information query
IPC分类:
