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Power supply circuit diagrams
September 30, 2010
Here is the circuit diagram of regulated power supply. It is a small power supply that provides a regulated voltage, adjustable between 1.5 and 35 volts at 1 ampere. This circuit is ready to use,... [more]
circuit from:http://www.extremecircuits.net/2009/10/easy-way-to-power-your-projects-here-is.html
September 30, 2010
When running 12V electronic devices from lead-acid battery banks, the voltage to the appliance can vary from below 11V with discharged batteries, to well above 14V during charging. Many appliances will not tolerate such a... [more]
September 30, 2010
48 V ‘phantom’ powering has become the standard for professional condenser microphones. The supply (or rather bias) voltage is applied over both wires of the balanced screened cable via two 6k8 resistors (see reference [1])... [more]
circuit from:http://www.extremecircuits.net/2010/05/48v-phantom-microphone-power-supply.html
September 30, 2010
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... [more]
circuit from:http://www.extremecircuits.net/2010/01/5v-regulated-power-supply-circuit.html
September 30, 2010
Here is the simple virtual ground circuit based on discrete components. This simple design comes from miniaturization guru Sijosae. Is to make a buffer from generic discrete components. The transistors can be most any complementary... [more]
circuit from:http://www.extremecircuits.net/2009/07/discrete-virtual-ground-circuit.html
September 30, 2010
This simple unit provides a dual-rail variable output ranging from ±2.5V to ±15Vdc with precise tracking of the positive and negative output voltages, still retaining the current limiting and short-proof capabilities of the "master" circuit.... [more]
August 4, 2010
Many times we needed symmetric voltage, but we do not have the possibility him of taking immediately, from a existing supply. Then it will be supposed him we create from the existing single. [more]
August 4, 2010
Many times we needed a variety of voltages, from a battery 12V. With the circuit, we can take voltages smaller or bigger, positive or negative, from a battery 12V. [more]
August 4, 2010
The circuit is a DC to DC converter using a standard 12 VAC center tapped power transformer wired as a blocking oscillator. The circuit is not very efficient but will produce a high voltage usable... [more]
August 4, 2010
The circuit below is designed to be used with the bi-directional lamp sequencer shown above on this same page. Two additional transistors are used to increase the current from the 74HCT138 decoder to control 12... [more]
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