Schematics

Power Amplifier

Preamplifier

Audio mixer

Audio Equalizer

DC Protection

Headphone Amplifier

Vu Meter

Tube amplifier

Loudspeakers Active crossover

Audio Filter

Audio misc

Auto - car

FM transmitter

LED

Alarm

Power Supply

Motor control

Robot

Timer generator oscilator

Computer

Microcontroller programmer PIC AT

Digital

Light controller

Laser

RF transmitter receiver

IR infrared

Medicine

Meter  Tester

Video

Switch control

Solar

RC modeling

Musical instruments

Miscellaneous

Game

Data acquisition

Telephone

     Power supply circuit

• Variable dual lab power supply

• Variable Power Supply L200

• Variable regulators

• Variable voltage supply

• +/-12V -> +/-5V power unit LM317, LM337 circuit

• Power supply cookbook

• +12V -12V power supply unit ERA22FWA

• 0 - 300V adjustable power supply

• 0-30 volt laboratory power supply

• 10 Amp, 13.8 Volt Power Supply LM723 IC, 3x 3055, 2N3055

• 12 Volt 30 amp supply TIP2955, LM7812 circuit

• 13.8 V / 15 A from a PC Power Supply

• 40V current source operates from -40 to +85°C LM317

• 48 Volt phantom power supply

• 7805 as a Voltage and Current Source

• Bicycle Regulator 6V/3W

• Blown Fuse Indicator

• Boosting three terminal voltage regulator

• CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER

• Constant Current Buck Regulator for High Power LED Drivers LM3404HV - 1.0A

• Constant Current LED Driver SP7615 Four

• Constant Current Source and Temperature Sensor LM134

• Constant current source with LM317 LEDs

• Current source based on a JFET

• Current source LED

• Desktop Power Supply from a PC

• Discrete LDO regulator

• Dual capacitance multiplier

• Dual polarity power supply circuit  LM317, LM337

• Dual Power Supply LM317, LM337, 78xx, 79xx

• Fast Electronic Fuse

• Fuse monitor alarm

• High voltage circuits

• L200

• L200 regulator circuit

• LCD monitor power supply

• LM117/LM317A/LM317 3-Terminal Adjustable Regulator

• LM317T variable voltage regulator  1.5 amps, 1.25 to 37 volts

• Maxim-ic.com appnotes

• Multiplier circuits

• Multiplier circuits U

• Power electronics resources battery charging, control techniques, invertors, magnetics design, power control IC, power device drivers, power supplies, converters, UPS

• Power supplies PFC controllers, ac-dc and dc-dc controllers, regulators, MOSFETs, and rectifiers for power supply applications

• Power supplies power supplies

• Power supply +20V/15A and +12V/3A LM338

• Power supply circuits

• Power supply for preamps

• Power-Supply Failure Alarm

• Regulated power supplies

• Simple circuit measures battery drain

• Small Variable Power Supply

• Snock's high voltage page

• Soft Start power Supply LM317, L200

• Three terminal positive voltage regulators 7800

• Three-Terminal Adjustable Output Positive Voltage Regulator LM317

• Ultra simple split DC supply

• Valve power supply

• Valved regulated high voltage power supply

• Voltage and Current Sources LM317T

• Voltage doubler 555 circuit

• Voltage doubler circuit voltage doubler circuit, ICL7660 circuit

• Voltage inverters 555

• Voltage inverters 555

• Voltage multiplier

• Voltage multiplier

• Voltage Multiplier (100kV)

• Voltage multipliers