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... (more) |
— | about 3 years ago |
| Edit | Post #284636 |
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— | about 3 years ago |
| Edit | Post #284636 |
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— | about 3 years ago |
| Edit | Post #284636 |
Post edited: |
— | about 3 years ago |
| Edit | Post #284636 |
Post edited: |
— | about 3 years ago |
| Edit | Post #284636 | Initial revision | — | about 3 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... (more) |
— | about 3 years ago |