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Home » Categories » Power supply circuits » DC Power supply (variable,fix DC Power supply)
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+-35V Dual Power Supply
A power supply that is adaptable for most power amps
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12 Volt 30 Amp PSU
Using a single 7812 IC voltage regulator and multiple outboard pass transistors, this power supply can deliver output load currents of up to 30 amps.
---479
48V Phantom Supply
Low noise 48V regulator and phantom mic supply circuits.
---257
Bench top power supply
Bench top power supply with MC1723
---106
DC Voltage and Current Source
A simple circuit built with TI LinCMOS opamp, TLC254C provides multiple outputs: +2.5V, 0 to +2.5V and 0 to 250uA. The circuit is operated with 9V battery.
---545
Dual +/-25V Lab Supply
Up to 800mA (typical) output current at +/-25V.
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Dual 12V power supply
Dual 12V power supply
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High Current 13.8V Power Supply
The power supply circuit is shown in Figures 1 and 2. A 7812 positive 3-terminal regulator is used for the main regulation, and this is followed by as many power emitter followers as needed for the current you require. The transistors are not critica
---876
L200 Power Supply
Power supply with voltage and current regulation built around the L200C regulator.
---478
Low Power -Ve Supply
Low power -ve supply for car audio preamps and crossovers
---256
PC 12V ADAPTER
This circuit provides a short circuit protected power supply from PC 12V supply voltage. This is particularly handy when working with PC interfacing projects.
---537
Rectification using a Gyrator Circuit
The load draws nearly 400mA. With the output directly from the rectifier there is about 5v pk-pk ripple
in the output.
---477
Simple 5V power supply for digital circuits
This circuit is a small +5V power supply, which is useful when experimenting with digital electronics. Small inexpensive wall tranformers with variable output voltage are available from any electronics shop and supermarket. Those transformers are eas
---823
Simple Pre-Regulator
Use this to adapt P05 to a power amp supply for your preamp
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Student DC Supply
Build a simple DC supply having three output terminals: regulated +5VDC, unregulated +10VDC and 7.5VAC. The supply is suitable for microcontroller experimenting.
---875
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