Hello everyone,
I am building a small bench supply (I know, not very original).
It'll be about 500mA max and 20V max.
I want to be able to switch the output on and off in a way that I can adjust the voltage (and view it on a panel volt meter) and then when I have set my voltage, I can flick the switch and give power to the circuit.
So the switch wouldn't be the mains switch, but an output switch.
I'm not sure the science behind it but I know that the act of toggling a switch can induce all sorts of crap into a signal, including overshoot.
So what is a good way to reduce that overshoot and/or have it ramp-up or "soft-start"?
I was thinking to put a capacitor or two AFTER the switch so that when I toggle the switch, they must first charge up and act as a filter. But is there a better way? Also I wouldn't know what values to use. I was thinking of maybe using a 0.1uF and a 10uF in parallel.
Thanks.
I am building a small bench supply (I know, not very original).
It'll be about 500mA max and 20V max.
I want to be able to switch the output on and off in a way that I can adjust the voltage (and view it on a panel volt meter) and then when I have set my voltage, I can flick the switch and give power to the circuit.
So the switch wouldn't be the mains switch, but an output switch.
I'm not sure the science behind it but I know that the act of toggling a switch can induce all sorts of crap into a signal, including overshoot.
So what is a good way to reduce that overshoot and/or have it ramp-up or "soft-start"?
I was thinking to put a capacitor or two AFTER the switch so that when I toggle the switch, they must first charge up and act as a filter. But is there a better way? Also I wouldn't know what values to use. I was thinking of maybe using a 0.1uF and a 10uF in parallel.
Thanks.