Home Made Power Supply. Home Utility Circuit 27


2AThis Homemade Power supply is useful for the Electronics hobbyists and service persons to test and troubleshoot the circuits. It gives six stage well regulated output power with a current of 800 mA. Its construction is “Open type” as it is home made. You can make it like a professional power supply by fixing inside a box with connectors for tapping the output.
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Power Supply for Projects. Design Note 43


IMAGEFor bread board assembly of Micro controller and Arduino projects ,we need  well regulated  5 V and 3.3 V DC power supply. Here is the simple but efficient regulated power supply that gives four stage power outputs  – 12 V unregulated, 9 V, 5 V and 3.3 V regulated DC .
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Familiarize Electronic Components Part IX – Voltage Regulators


Voltage Regulators are used to give regulated power to a circuit. Most of the circuits using CMOS devices require well regulated power supply. Zener regulated power supply is simple but less reliable than the power supply using Fixed Voltage regulator IC. 78 XX series ICs are Positive voltage regulators while 79 XX series ICs are  Negative voltage regulatorsLM317 and LM338 are Variable voltage regulators.

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Bread board Regulated Power Supply


You can use this multi voltage power supply for the bread board projects. Most of the circuits require regulated power supply for errorless operation. This power supply can give regulated 12V, 9V, 6V and 5 V. Charger point for battery charging and Test point for LED and Buzzer are also included.

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