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Part Number: UC3637
We use UC3637 to generate PWM for IGBT control. Follow the spec and designed our schematic. the voltages and input signals are normal. but the output result is not well, the schematic have some problem, the PWM bring some harmonic voltage to output. who can help me?schemtic.docx
Luis RiverosMotor Applications Team
In reply to Luis Riveros:
In reply to pan pan50:
Hi Pan Pan50,
Pins 8 and 10 should be connected together and back to pin 2. Maybe this app note can help. What is your end application? What is your motor spec? Could you use a microcontroller like the MSP430 to send PWM signals? what are you using as the motor driver? We might have a better solution if you let us know the specs. Thanks.
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