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Washing Machine Application

System View | Block Diagram
Protection Area Illustration (click to open larger image in new window)
  1. AC Power
  2. LCD Backlight Heater
  3. Buttons
  4. IGBT Motor Control

AC Power Port Protection

Problem: Voltage and Current Transients

Electrical equipment can be put at risk from high voltage or power transients on the AC inputs due to lightning strikes or power station load switching transients and from the resulting surge currents.
 

Solution: LVR + ROV

Overvoltage and overcurrent protection are often viewed as unrelated conditions. With PolySwitch LVR devices and Raychem Metal Oxide Varistors (ROV), Tyco Electronics offers designers a complete solution that helps enhance product protection and reliability.

 

Read more about Radial-leaded PolySwitch devices

Applicable Product Series: LVR
Download Radial-leaded PolySwitch Datasheet - (pdf 707KB)
Agency recognitions: UL E74889, CSA 078165_C_000, TÜV

 

Read more about Radial-leaded Metal Oxide Varistors

Applicable Product Series: ROV
Download ROV Datasheet - (pdf 2.17MB)
Agency recognitions: UL1414 E223034, UL1449 E223033, CSA 220978, VDE 40006997

 

Circuit Diagram / Schematic
 

Application Notes:

• ROV Selection Guide - (pdf 44KB)
• Fuse Selection Guide - (pdf 93KB)
• PolySwitch Selection Guide - (pdf 1,550KB)
• Multi-Layer Design in Fuses - (pdf 101KB)
• Fundamentals of PolySwitch Devices - (pdf 169KB)
 

Competitor Cross-reference

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