All Questions
Tagged with capacitive power
7 questions
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How to safely switch a big inductive load with a Triac using a capacitor snubber?
I am building a Spot Welder with a big powerful transformer.
I have to switch a big inductive load of 70mH (input of a transformer)
The switching will be done with an SSR (Opto Triac Zero crossing SSR-...
- 879
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1
answer
209
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capacitive power supply design query
I was trying to make an LED lamp with 16 series 3528 SMD LED chips. I am planning to use a transformerless capacitive power supply to step down 230V.
As per my calculation 16 led will require the ...
- 19
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1
answer
583
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How to calculate inductive and capacitive reactance?
I am studying a project that calculate reactance power. I can measure apparent power, real power and power factor. Therefore I can calculate total reactance power. But I don't know whether it is ...
- 11
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1
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86
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capacitive power suplply
i have following doubts about capacitive power supply or transformerless power supply...
what will be real power drawn, will it be 230 x (current flowing through C1) or 6 x (current flowing through ...
- 103
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1
answer
1k
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Given the dynamic and static power consumption how does one determine the total power for the capacitive load?
I get that the capacitive load is determined which is also indicated by this question:
$$\frac{Power}{Voltage^2 \times frequency} = Capacitive Load$$
However, I am not sure how power (which is ...
- 103
1
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1
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456
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Capacitive touch on off power switch
Is is possible to use capacitive touch as a power switch for an embedded project?
Can a microcontroller turn itself off and somehow still monitor an input pin? Or is there a dedicated IC that can ...
- 21
2
votes
0
answers
1k
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Split-phase 230VAC transformerless capacitive power supply for 5V@30mA regulated output -- series cap?
I'm a hobbyist developing a hybrid power switch (electromagnetic + solid state) for a resistive electric stove (8kW max) top. I have a profoundly autistic, disabled adult in the house and I need a ...
- 78.7k