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6
votes
1answer
624 views

Drop voltage a bit

I have this ATtiny13a mcu led setup that uses total of 33mA when both leds are on and it works perfectly when powered through usb output. My problem is that now I want to power it using a 6V 500mA ...
1
vote
1answer
758 views

Is a diode an effective way to replace a resistor in an application where heat should be avoided?

Currently with my project where I removed some christmas lights from a string, I used a resistor in place of the removed bulbs successfully. (Note: Skip down to "Diode as replacement?" section for ...
0
votes
2answers
2k views

Step down transformer voltage between neutral and ground

I just decided to test the voltages in my old tube guitar amp against the schematic. I live in Australia and it's a US amp, so I use a separate 240-110v step down transformer to run the amp. Upon ...
0
votes
1answer
87 views

Horn disturbs controller and lcd on common power source

I have a 60V battery which feeds a PCB itself switching down the voltage to a 12V bus and then from 12V to a 5V bus using two consecutive TI TPS54560 switching regulators (5A max current). I have a ...
0
votes
2answers
301 views

Reduce voltage to many lower output with resistors

I have a stable dc 12 volt input 2 Amps and i want to make 6 different exports out of it like a power suply. I would like to make the six reduced outputs out of it : 12v as i get it from the input,9v,...
0
votes
3answers
202 views

Best design choice: linear regulator or switch converter

I need to power a Thermoelectric module with 10A maximum load current. I'm designing a card with a minimal design in order to change the current or the voltage across the load, given a standard ...