Application Circuit (Voltage sensing) of the TLP7920 Isolation Amplifier

This reference design provides design guide and example of simulation waveform for bus voltage detection with optical isolation amplifier for motor control of servo and inverter.

Application block diagram of application circuit (voltage sensing) of the TLP7920 isolation amplifier.
Application Block Diagram
Applicatoin circuit diagram of application circuit (voltage sensing) of the TLP7920 isolation amplifier.
Applicatoin Circuit Diagram

Description

  • Description of TLP7920 signature functions and features, especially common mode transient immunity, nonlenearity feature and low cosumption current
  • Design guide for the typical application circuit, voltage sensing circuit
  • Operation confirmation by Spice simulation

Features

  • Optically coupled isolation amplifier
  • Common mode noise imunity : 15kV/μs(Min)
  • Low comsumption current : Primary side 8.6mA(typ.), Secondary side 6.2mA(typ.)

Reference design files

Design, Document

“Design・Document” contains the documents listed below.

Name Date

Design, File

“Design・File” contains the contents listed below.

Name Date

Toshiba items

Part Number Device Category Portion Usage Description
TLP7920 Isolation amplifier signal amplifier・1 Isolation amplifier/Analog output/DIP8

Documents

Name Date

Contacts

Technical inquiry

Contact us

Contact us

Frequently Asked Questions

FAQs

* Cadence, the Cadence logo, OrCAD and OrCAD logo are trademarks or registered trademarks of Cadence Design Systems, Inc.
* PSpice® is a registered trademark of Cadence Design Systems, Inc.
* Other company names, product names, and service names may be trademarks of their respective companies.

A new window will open