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Activity for francesco‭

Type On... Excerpt Status Date
Comment Post #284636 @Lundin I guess the ceramic heater is a pure resistive load. I blew the tracopower, which is, the 24V to 5V converter, not the main power supply. The problem with the blew-up was highlighted by my simulation, if the dampening factor of the input capacitance is too low, the resonance between the EMI f...
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over 2 years ago
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over 2 years ago
Edit Post #284636 Initial revision over 2 years ago
Question Low-frequency PWM-controlled Mosfet heater circuit
Schematics The circuit above is used to control a 240W ceramic heater by means of a PWM signal at 30Hz, generated by a microcontroller, with 5V logic. The input is a standard 280W AC-DC external power adapter, the Meanwell GST280A24.The C1 is a large electrolytic capacitor, 2200 uF, with 35V maxim...
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over 2 years ago