Given a known power supply, what are safe ranges for the volts/amps/ohms of connected components?
423
Choosing power supply, how to get the voltage and current ratings?
26877
How to measure supply currents ranging from 1μA to 10mA?
110238
Voltage drop along an idealized resistance-free wire in a circuit?
5227
When would I use a voltage regulator vs voltage divider?
12033
What would happen if I connect two different DC voltage sources in parallel?
116269
Ground type for DC regulator
2268
Question regarding use of low voltage high current outputs
113652
Calculate capacitor to hold up current limited supply
85414
maximum via current carrying capacity pcb
119871
How can I calculate the current carrying capacity of a DC copper bus bar with respect to temperature?
110088
What happens if the input of a voltage regulator gets out of the operating range?
62968
OR-ing power supplies (diode or mosfet)
77276
What would happen if I choose a connector with current rating smaller than the actual current?
113869
What should the minimum voltage rating of replacement power resistors be?
38114
Basic questions about voltage drop in DC circuit
36841
Generating high voltage (100V+) from 5V USB supply
129642
How is using a transformer for isolation safer than directly connecting to the power grid?