Tag Archives: 15 Volt power supply

-15 V 1A Regulated Power Supply

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The actual supply should get -20 V coming from rectifier/filter that is given to the collector of Darlington PNP-type pass transistor, a TIP 105. The base drive for the TIP105 is supplied  via resistor R5. The base of the TIP is driven from Vz terminal at pin 9, this is… Read more »

-15 V 1-A Regulated Power Supply

Schematic Diagrams      Comments Off on -15 V 1-A Regulated Power Supply

The actual supply should get -20 V coming from rectifier/filter that is given to the collector of Darlington PNP-type pass transistor, a TIP 105. The base drive for the TIP105 is supplied  via resistor R5. The base of the TIP is driven from Vz terminal at pin 9, this is… Read more »

+15 Volt 1 Amp Regulated Power Supply

Schematic Diagrams      Comments Off on +15 Volt 1 Amp Regulated Power Supply

The actual supply takes +20 Volt Dc through the dioda bridge or filter part. This can be given to pins 11 and 12 on ua723, and also for the collector  2N3055 series-pass transistor. All the output voltage will be sampled through R1 and R2, giving around 7 Volt relating to… Read more »