Free Simple Circuit Diagram

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5V Switching Regulator, Very Simple Circuit

Switching Regulator for High Power Efficiency When you should regulate a high voltage to a much lower voltage, switching regulator must be the only choice. Fortunately,  a simple switcher integrated circuit chip is available, let you build a complete step-down switching regulator using five components. The switching regulator IC used in …

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Simple pH Meter Circuit, A Low Cost Adapter for Your Digital Voltmeter

What is A pH Meter? A pH meter is actually a precise voltmeter  that measures the generated voltage of a pH electrodes. The requirement of such meter is high input impedance and has the gain of  voltage-pH conversion. The standard pH probe generate voltage about 59 mV per pH,  so all we …

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DC to AC Inverter

DC to AC inverter is used to convert DC voltage source to an AC voltage source. DC AC inverter circuit works by switching the DC voltage source to make an alternating current  that flow to a transformer. Here is an example of  dc ac inverter schematic: This power inverter could generate 120 Watts …

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Super Simple Inverter

This is example of a simple inverter that can be used to power fluorescent lamp and a small strobe. This circuit will produce over 400VDC from a 12 VDC, 2.5 A power supply or marine battery or an auto. This circuit is very simple because it does not require custom transformers or coils. Also all …

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52W SMPS AC-DC Adapter

One AC-DC converter that provides a good accuracy is SMPS AC-DC converter. Test data shows efficiency of 85.4% at 230 Vac input and 6A output current and 83.2% at 115 Vac input and 6A output current. This converter has the universal input voltage range. containing 92 to 276 Vac variation with only 24 mV change …

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L200 DC Motor Speed Control

This diagram tells us about how to use L200 device for the speed control of permanent magnet motors. By means of R1 and R2, we can obtain the desired speed, proportional to the voltage at the terminal of the motor. Vm= Vref (1+R2/R1) We can use this following equation …

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