Author Topic: current limiting to parallel resonance circuit  (Read 190 times)

Offline plasma

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current limiting to parallel resonance circuit
« on: August 02, 2020, 07:13:54 AM »
Hi I have been looking at tank circuit, simulators and books. On the sim there's quite a large in rush current, it doesn't matter so much with low voltage, but when trying to find a high voltage high current power supply, I'll probably trip breakers.
Will be starting with 24acv and go up to 240acv, starting the construction of the inductor will be 100mH and capacitor 100uF at 50hz.
I  don't really want to uses mechanical switch's to change resistance, but will settle for that.
Any ideas I could look at it, triac and...

Thanks

Offline davekni

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Re: current limiting to parallel resonance circuit
« Reply #1 on: August 02, 2020, 06:49:59 PM »
The standard solution for limiting inrush current is NTC thermistors designed for that purpose, called "inrush current limiters".  Here's the Digikey page for those:
https://www.digikey.com/products/en/circuit-protection/inrush-current-limiters-icl/151?k=inrush%20current

For improved efficiency, many power supplies have a mechanical relay that shorts across the inrush current limiter a few seconds after startup, after the inrush event is past.
David Knierim

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Re: current limiting to parallel resonance circuit
« Reply #1 on: August 02, 2020, 06:49:59 PM »

 


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