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LM317 Variable Voltage Regulator |
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LM3914 battery monitor |
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Low Power DC to DC Converter |
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Low Power LED Voltmeter |
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Low-dropout 12V regulator (LM324) |
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LTC1265 Nicad charger |
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Machine power loss beepter (PDF) |
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Multiple voltage power supply |
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Nagative voltage generation using 555 timer |
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NE555 Low Voltage Battery Disconnect Circuit |
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Negative voltage generator |
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Nicad battery
Charger |
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Nicad battery cycler |
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Nicad Battery Discharger/Capacity Indicator |
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One 9V battery gives +18, +25, +33V |
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PIC16F873 DC motor speed controller |
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Power reminder beeper (PDF) |
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Power supply provides +5VDC regulated,
+10VDC unregulated and 7.5VAC |
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Pulse Charger for reviving tired Lead Acid
batteries |
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PWM Motor Speed Controller / DC Light Dimmer |
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PWM Motor/Light Controller |
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PWM Motor/Light Controller variants |
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Regulated 12V supply |
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Simple +5V power supply circuit |
|
Simple Capacitance Multiplier Power Supply
For Class-A Amplifiers |
|
Simple DC Adapter Power Supply |
|
Simple power supply |
|
Simple switching power supply |
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Simple Variable Voltage Source |
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Single cell lithium battery charger |
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Smart battery charger |
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Snowmobile GPS power adapter |
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Switching regulator (2) |
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Temperature Controlled NICD Charger |
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Tesla coil / HV generator |
|
Transformerless Power Supply |
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TTL power supply with crowbar protection |
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Unplugged power cord alarm |
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Unregulated power supply |
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Valve power supply |
|
Variable 3 - 24 Volt / 3 Amp Power Supply |
|
Variable Dual Lab Power Supply |
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Variable Voltage and Current Power Supply |
|
Various switching power supplies |
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Voltage converter |
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Voltage doubler |
|
Voltage inverter |
