公开(公告)号：US09577623B2

公开(公告)日：2017-02-21

申请号：US14021910

申请日：2013-09-09

Applicant: Microchip Technology Incorporated

Inventor： Ching Chu ,  Benedict Choy ,  Andy Tu

IPC: H03K5/1536 ,  G01R19/175

CPC classification number: H03K5/1536 ,  G01R19/175

Abstract: A capacitive parametric zero crossing detection circuit has a nonlinear voltage controlled capacitive device coupled to an input voltage to convert a zero crossing current pulse into zero crossing voltage signal.

Abstract translation: 电容参数过零检测电路具有耦合到输入电压的非线性压控电容器件，以将过零电流脉冲转换为过零电压信号。

公开(公告)号：US09568597B2

公开(公告)日：2017-02-14

申请号：US13965490

申请日：2013-08-13

Applicant: Microchip Technology Incorporated

Inventor： Benedict Choy ,  Ching Chu ,  Andy Tu

IPC: H03K17/16 ,  G01S7/52

CPC classification number: G01S7/52017

Abstract: An ultrasound image system has a plurality of channels. At least one of the plurality of channels has a capacitive T/R switch.

Abstract translation: 超声图像系统具有多个通道。 多个通道中的至少一个具有电容性T / R开关。