1.2V – 57V Regulated DC Power Supply Circuit

On November 18th, 2014 by psu | No Comments | Posted in Regulated Power Supply, Variable Power Supply

1.2V 57V Regulated Power Supply Circuit 300x102 1.2V   57V Regulated DC Power Supply Circuit

This is the circuit diagram of multi purpose regulated dc power supply which featured with short circuit protection. The electronic workshop is necessary to have a source capable of providing any voltage and sufficient current within an acceptable range of possibilities. This circuit goes beyond conventional sources (which rarely exceed 24V output) giving a maximum of 57V with a current of 1.5A.
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Power Supply Calculator for Server and Desktop Computer

On October 4th, 2014 by psu | No Comments | Posted in ATX Power Supply

PC Power Supply Power Supply Calculator for Server and Desktop Computer

These are the recommended websites which provide online power supply calculator for server and desktop computer. This tool used to calculate the estimate wattage of power supply which should be used for computers depends the computer specification.
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1.5A Negative Adjustable Power Supply

On September 15th, 2014 by psu | No Comments | Posted in Regulated Power Supply

Negative Adjustable Power Supply Schematic Diagram 300x93 1.5A Negative Adjustable Power Supply

This is the circuit diagram of negative adjustable power supply based LM337T. This circuit can be used for devices which required negative supply to work. The regulator LM337T is capable of supplying 1.5A over an input voltage range of 1.2V to 37V. They need at least a 2.5V input-output voltage differential. In practice the limiting factor on the output voltage & current will be the power dissipated by the regulator. For example, if the input voltage is 30V & the output voltage is 10V and the output current is 1A then the power dissipated by the heatsink is (30-10)*1 or 20W. This would need a big heatsink. So it is desirable to keep the input voltage as low as possible to achieve the required output.
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12V / 10A Switching Power Supply

On July 31st, 2014 by psu | No Comments | Posted in Switching Power Supply

12V 10A Switching Power Supply Circuit Diagram 300x201 12V / 10A Switching Power Supply

This is the circuit diagram of 12V / 10A switching power supply. The circuit, shown in the schematic, provides 12 volts, at 10 amperes, maximum, using a discrete transistor regulator with an op-amp functioning as a comparator in the feedback circuit. The supply was constructed in 1984 and is variable frequency, as opposed to the pulse width modulator (PWM) controllers used today. The transformer used in this design diagram was for 110-120VAC home electric main, you should change the transformer which has 220V primary if your home electric installation use 220VAC.
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Triple Output DC Power Supply

On July 29th, 2014 by psu | No Comments | Posted in Power Supply Circuit, Regulated Power Supply

triple output DC powersupply circuit 300x211 Triple Output DC Power Supply

This is the circuit diagram of triple output power supply. The output given are:

  1. Adjustable output +1.25V to +20VDC
  2. Splited / dual polarity output +12VDC and -12VDC
  3. Splited / dual polarity output +5VDC and -5VDC

This is a low-cost and easy built power supply for multipurpose usage. It fulfils the requirements of almost all laboratory experiments.
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