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Power supply circuit diagrams
August 4, 2010
Want a regulated voltage that can be adjusted to suit your application? This Adjustable Power Supply is small, easy to build and can be adapted to produce a fully regulated voltage ranging from 1.3V to... [more]
circuit from:http://www.extremecircuits.net/2010/02/adjustable-13-22v-regulated-power.html
August 4, 2010
There is little to be said about this circuit. All the work is done by the regulator. The 7809 can deliver up to 2 amps continuous output whilst maintaining a low noise and very well... [more]
circuit from:http://www.extremecircuits.net/2010/03/9-volt-2-ampere-dc-regulated-power.html
August 4, 2010
This power supply is meant as an auxiliary or as a permanent power supply for all common circuits based on a stabilized DC voltage between 3 and 30V provided that the consumption does not exceed... [more]
circuit from:http://www.extremecircuits.net/2010/02/3-30v-3a-adjustable-regulated-dc-power.html
August 4, 2010
Here is an efficient 4-stage stabilised power supply unit for testing electronic circuits. It provides well regulated and stabilised output, which is essential for most electronic circuits to give proper results. The circuit provides an... [more]
circuit from:http://www.extremecircuits.net/2010/05/stablised-power-supply-with-short.html
August 4, 2010
This circuit runs a fast battery test without the need of power supply or expensive moving-coil voltmeters. It features two ranges: when SW1 is set as shown in the circuit diagram, the device can test... [more]
circuit from:http://www.extremecircuits.net/2009/12/self-powered-fast-battery-tester.html
August 4, 2010
Is the battery empty, or is there something wrong with the device? That’s always a difficult question when your walkman or some other battery-powered device appears to be dead when you switch it on. Before... [more]
circuit from:http://www.extremecircuits.net/2010/04/battery-tester-circuit-schematic.html
August 4, 2010
This circuit can charge automatically, fast and rightly, batteries 6V and 12V. A basic factor in the success in the circuit operation is the use of transformer [T1] of good quality with very good insulation... [more]
August 4, 2010
This is a similar circuit to the above and provides a 4 LED bar graph indicating the voltage of a common 3.6 volt Lithium - Ion recharable cell phone battery. The reference voltage is provided... [more]
August 4, 2010
This circuit was build to charge a couple series Lithium cells (3.6 volts each, 1 Amp Hour capacity) installed in a portable transistor radio. [more]
August 4, 2010
A simple method of charging a battery from a higher voltage battery is shown in the circuit below to the left. Only one resistor is needed to set the desired charging current and is calculated... [more]
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