how to test switching frequency of TL494 KA7500, we can test TL494 smps ic controller output switching pwm signal using oscilloscope and multimeter. just connect external 12 volt dc to vcc pin number 12 and back to ic pin number 7 which is the ground pin of TL494 or KA7500. we need to ground pin number 4. Then we can test the signal between ground and pin numbers 9 and 10 or 8 and 11,
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how to test switching frequency of TL494 KA7500, we can test TL494 smps ic controller output switching pwm signal using oscilloscope and multimeter. just connect external 12 volt dc to vcc pin number 12 and back to ic pin number 7 which is the ground pin of TL494 or KA7500. we need to ground pin number 4. Then we can test the signal between ground and pin numbers 9 and 10 or 8 and 11,
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