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DC to DC converter circuit diagrams
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October 5, 2010
This simple and inexpensive circuit can produce a dual (positive and negative) voltage from a single supply input. It is therefore extremely useful for powering opamp and other circuits that require a dual voltage from... [more]
October 3, 2010
The TPS6420x controller is designed to operate from one to three series-connected cells or from a 3.3 V or 5 V supply obtained from a USB port. At its output it can produce 3.3 V... [more]
circuit from:http://www.extremecircuits.net/2010/05/step-down-converter-controller.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]
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]
August 4, 2010
A 555 timer can be used to generate a squarewave to produce a negative voltage relative to the negative battery terminal. When the timer output at pin 3 goes positive, the series 22 uF capacitor... [more]
August 4, 2010
All miniature electronic devices operate off batteries. Some of them need higher than the standard battery voltages to operate efficiently. If the battery of that specific voltage is unavailable, we are forced to connect additional... [more]
circuit from:http://www.extremecircuits.net/2010/05/low-power-voltage-doubler-booster.html
August 4, 2010
Sometimes you have a situation where you have a 5-V supply voltage but part of the circuit needs a lower supply voltage. A voltage regulator from the Texas Instruments TPS62000 family [1] is a good... [more]
circuit from:http://www.extremecircuits.net/2010/05/low-voltage-step-down-converter.html
June 22, 2010
The limitation of car supply voltage (12V) forces to convert the voltages to higher in order to power audio amplifiers. [more]
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