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My latest product went to EMC testing and failed miserably. I run the circuit from 115VAC and a long cord. I will test soon, but my gut says that the noise is comming in on the 115. Has anyone built a circuit(filter) for such a problem? The EMC high freq test is a steel plate driven by a...
I have a relay that is driven from a PIC 18F452.
It is driven with a FDV301N N-FET.
I've put a 10k in series with the uC pin to limit current to the FET.
NOW I want to put a pull-down on the pin for when the micro-controller is in
reset and the pin is set as input. so I don't want the input to...
Has anyone used something like a mpc508 to mux a signal to different devices?
I'd like to use the same 4 wire RJ for either
pwr,gnd,RS232 TX, RS232 RX.
pwr,gnd,RS485 A, RS485 B
So I wanted to know if some kind of mux exits for a...
I have a motor and arbor from an HP scanner. HP circuit board c6734-60161A
The motor has a shaft encoder on the end.
It looks to be optical and single channel.
The wire colors are BR,G,Y,R,O,Black
How can I figure what the other wires are?
I only have common bench equipment...