Bypass a linear voltage regulator by applying a voltage at the output while input is not connected?
32709
Drive voltage regulator Vout when Vin is floating
77248
How to scale and shift voltage signal?
63411
Is it ok to feed the output of one LDO regulator to the input of another?
153031
How to change the voltage polarity in an inverting amplifier?
114322
Making voltmeter accepting bipolar input voltage, using a microcontroller
37137
Analog voltage level conversion (level shift)
37729
What's a simpler way to switch between power sources?
89981
Can I safely connect the power-only-end of a USB-Y cable to an other power source?
128474
Single supply op amp to convert 0-5VDC to +/-2VDC (microcontroller to line level)
147687
Practical way to generate 1500V?
131698
How can I make a simple voltage-controlled attenuator?
36923
Which method or component is best to regulate 42 to 3.3 V?
98480
Using 240v mains on/off as input to microcontroller
58516
Limiting the short circuit current of a power supply
18771
Switch between 5V power supplies?
114801
Amplify current and voltage to preserve battery
5227
When would I use a voltage regulator vs voltage divider?