Re: programmable circuit breaker

On Wed, 5 Mar 2025 15:36:22 -0800, Buzz McCool <buzz_mccool@yahoo.com>
wrote:

On 3/4/2025 9:06 PM, john larkin wrote:
...

 
So how might a user program a circuit breaker? Just RMS current with
some time constant? Allow fast and slow trips?

>
I've designed an electronic circuit breaker using Linear Technology
(now Analog Devices) hot swap controllers. It looks like they offer
some products with a programmable current limit.
>
I'm not sure if you can change the circuit breaker time delay though.
>

I used a TI e-fuse chip in one product. TPS26600. It liked to blow up.
Being a nasty power-pad chip, it was very hard to replace.

AP22652 is cool. We use it to current limit the power into pulse
generator output drivers.

On our relay board, we'll have a Hall effect current sensor driving a
fast ADC, and the shutdown will be FPGA code, so we can do most
anything.