How to control 12V from 5V using transistor?
93985
Control 5v relay through 3.3v GPIO using NPN transistor
103940
add transistor model to LTspice
47274
How can i transfer 12 V, 50 Hz, 1 A wirelessly?
91437
Amplifying 10-30mV into at least 5V
125118
230V AC to 5V DC converter, lossless
136436
Designing 12v DC UPS
137995
Powering a circuit from either USB or LIPO
33827
Basic circuit voltage question - Using a driver to control a stepper motor
126684
How to remove spikes from switching transistor?
74135
NPN circuit to switch 12v 1A DC load by 3.3v 1A DC using PIR
49285
Is my MOSFET-based bidirectional level shifter insane?
77248
How to scale and shift voltage signal?
91814
4-20mA output/transmitter?
128474
Single supply op amp to convert 0-5VDC to +/-2VDC (microcontroller to line level)
55457
How to control 4 relays with a not chip (7404)
134426
How do I convert, lower, or raise voltage?
108443
BJT as a switch: what am I doing wrong?