Free Simple Circuit Diagram
The IC is allowed to be biased at a -50 V rail with a shunt zener by the small current consumption of a MAX641 so that the IC can convert -50 to 5 V. In telecom systems, this is a common requirement where logic circuit must be powered from the central office battery voltage. The feedback signal is shifted by […]
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Using this circuit a low voltage battery can be increased to 5V. The need of input voltage of this circuit is only 1.5V and the output voltage is 5V at 40mA. Using 2.4V input, this circuit can supply 180mA at 5V. This circuit uses a MAX641 step-up dc/dc converter. The power handling ability and efficiency of MAX641 can be improved […]
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Schematic diagram below shows an ADP1821 Step Down DC-to-DC Converter circuit. This circuit uses ADP1821 that can be used to regulate an output with a load of more than 20 A. It can be done if he power components like MOSFETs, the bulk capacitors and the inductor are chosen carefully to achieve the power requirement. The power-train component limits the […]
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This is a voltage multiplier circuit. First circuit is used to double the a square wave (any amplitude). However there is minus about 2v losses in base-emitter of the transistors and the diodes in first circuit. To work, second circuit must fall to nearly 0.4v and rise to at least 5.6v. to prevent short-circuiting and both transistors coming on at […]
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