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Motor Control Applications

Power Integrations offers a broad range of highly integrated, high-voltage ICs for auxiliary power supplies for motor control and small DC motor drives. Each IC includes a 700 V power MOSFET combined with control and protection circuitry on a single chip. Features include current limiting and thermal shutdown with automatic fault recovery capability to improve reliability, frequency jittering to reduce EMI, and EcoSmart® technology to dramatically reduce standby energy waste.

Typical Product Application Application Notes
Design
Ideas		 Design
Example
Reports 		Engineering
Prototype
Reports		 Reference
Design
Kits

1.2 W Dual Output Power Supply with Positive or Negative Outputs

   Reference Design Report   RDK-138
Auxiliary Power Supply (Buck, 12 V/80 mA, 3.3 V/70 mA) Design Ideas are concise two-page documents describing a design for a specific application.      
Variable Speed DC Motor Drive (35 W, 75W peak) Design Ideas are concise two-page documents describing a design for a specific application.   Design Ideas are concise two-page documents describing a design for a specific application. RDK-128
Auxiliary Power Supply to Drive IGBT 1200 V Modules (3W Flyback) Design Ideas are concise two-page documents describing a design for a specific application.      
Auxiliary Power Supply for Motor Control Board (1.6 W Flyback)   Design Example Reports contain a power supply design specification, schematic, bill of materials, transformer documentation, and pcb layout.    
Auxiliary Power Supply to Drive IGBT 600 V Modules (2 W Buck)   Design Example Reports contain a power supply design specification, schematic, bill of materials, transformer documentation, and pcb layout.    

Product Families Used in These Applications

IC Product
Family		 Typical Circuit
Configuration		 Power/Current
Ratings		 Description
TOPSwitch®-HX Flyback Up to 254 W
Incorporates a 700 V power MOSFET, high voltage switched current source, PWM control, oscillator, thermal shutdown circuit, fault protection and other control circuitry onto a monolithic device
LinkSwitch®-TN Buck Up to 360 mA
Energy-efficient capacitive drop replacement with minimal external component required
LinkSwitch®-XT Flyback Up to 6 W
Low cost linear replacement with Clampless® technology (LNK362)
PeakSwitch® Flyback

Up to 127 W Peak

Specifically designed for Motor Drives, with capability to delivery up to 3 times maximum continuous output power.

Simple ON/OFF control – no loop compensation required. Adaptive on-time extension minimizes bulk capacitor size.
TinySwitch®-III Flyback Up to 28.5 W

Improved design flexibility. Reduced input capacitance and transformer size due to time extension and I2f ratings.
TOPSwitch®-GX Flyback Up to 210 W
Maximum design flexibility and higher power ratings. External programmable current limit. Under-voltage and over-voltage protection.

Related Design Support Documents

General Design Information Design Guides
Product Datasheets AN-40 LinkSwitch®-XT Design Guide
AC-DC Selector Guide AN-31 LinkSwitch®-TN Design Guide
Package Information AN-41 PeakSwitch™ Design Guide
Package Information AN-32 TOPSwitch®-GX Flyback Design Methodology
  AN-43 TOPSwitch® HX Design Guide

Other Related Links

Power Integrations Introduces TinySwitch®-III Power Conversion IC Family

Magazines

Energy Saving Initiative in Electrical Motors

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Contact your local Power Integrations Sales Representative or Distributor for assistance.

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