公开(公告)号：US20160054265A1

公开(公告)日：2016-02-25

申请号：US14932973

申请日：2015-11-05

Applicant: University of Electronic Science and Technology of China

Inventor： Qishui Zhong ,  Hui Li ,  dajin Chen ,  Baihua Li

IPC: G01N27/62 ,  H03K7/08 ,  H03K17/691

CPC classification number: G01N27/624 ,  H03K7/08 ,  H03K17/102 ,  H03K17/691

Abstract: An environment detecting apparatus employing an asymmetric waveform pulse generator is disclosed. The asymmetric waveform pulse generator comprises a metal oxide semiconductor field effect transistor (MOSFET) bridge circuit that comprises a plurality of MOSFETs for inverting high voltage DC voltage to asymmetric waveform pulses, a pulse-width modulating (PWM) circuit for generating PWM signals, and a plurality of isolation driving circuits corresponding to the plurality of MOSFETs, for controlling switching on/off of the plurality of MOSFETs in the MOSFET bridge circuit based on the PWM signals generated by the PWM circuit. Wherein each of the isolation driving circuits comprises an isolation transformer for isolating the MOSFET bridge circuit from the PWM circuit.

Abstract translation: 公开了一种采用非对称波形脉冲发生器的环境检测装置。 非对称波形脉冲发生器包括金属氧化物半导体场效应晶体管（MOSFET）桥接电路，其包括用于将高压DC电压转换为非对称波形脉冲的多个MOSFET，用于产生PWM信号的脉宽调制（PWM）电路，以及 对应于多个MOSFET的多个隔离驱动电路，用于基于由PWM电路产生的PWM信号来控制MOSFET桥式电路中的多个MOSFET的导通/截止。 其中每个隔离驱动电路包括用于将MOSFET桥接电路与PWM电路隔离的隔离变压器。

公开(公告)号：US09568451B2

公开(公告)日：2017-02-14

申请号：US14932973

申请日：2015-11-05

Applicant: University of Electronic Science and Technology of China

Inventor： Qishui Zhong ,  Hui Li ,  dajin Chen ,  Baihua Li

IPC: H03K7/08 ,  H03K17/691 ,  G01N27/62 ,  H03K17/10

CPC classification number: G01N27/624 ,  H03K7/08 ,  H03K17/102 ,  H03K17/691

Abstract: An environment detecting apparatus employing an asymmetric waveform pulse generator is disclosed. The asymmetric waveform pulse generator comprises a metal oxide semiconductor field effect transistor (MOSFET) bridge circuit that comprises a plurality of MOSFETs for inverting high voltage DC voltage to asymmetric waveform pulses, a pulse-width modulating (PWM) circuit for generating PWM signals, and a plurality of isolation driving circuits corresponding to the plurality of MOSFETs, for controlling switching on/off of the plurality of MOSFETs in the MOSFET bridge circuit based on the PWM signals generated by the PWM circuit. Wherein each of the isolation driving circuits comprises an isolation transformer for isolating the MOSFET bridge circuit from the PWM circuit.

Abstract translation: 公开了一种采用非对称波形脉冲发生器的环境检测装置。 非对称波形脉冲发生器包括金属氧化物半导体场效应晶体管（MOSFET）桥接电路，其包括用于将高压DC电压转换为非对称波形脉冲的多个MOSFET，用于产生PWM信号的脉宽调制（PWM）电路，以及 对应于多个MOSFET的多个隔离驱动电路，用于基于由PWM电路产生的PWM信号来控制MOSFET桥式电路中的多个MOSFET的导通/截止。 其中每个隔离驱动电路包括用于将MOSFET桥接电路与PWM电路隔离的隔离变压器。