Mini Project | Electronic Project Circuits

Posts Tagged ‘mini project’

2N3055 Simple inverter 5W

This Simple inverter circuit. the main aim of this circuit is to provide a suitable supply for all kind of low power battery chargers that normally connect to the mains such as mobile phones, electric shavers, etc, even an electronic neon light rated at 5W was successfully connected.
Only easily obtainable components are used.

Source:

http://digilander.libero.it/bubblegate/ecircuit3.html

Be the first to comment - What do you think? Posted by admin - September 26, 2007 at 7:19 pm

Categories: Inverter Tags: 2N3055 inverter circuit, micro inverter circuit, mini project, simple inverter circuit

Easy power supply 0-15V , 0-1A

This is easy circuit power supply, variable regulator adjustable voltage output 0V to 15V and Current adjust 0A to 1Amax. Use normal electronics part.

TR1 provides a constant current to a bank of three zener diodes, thus maintaining a constant voltage independant of supply voltage variations. The resistor Rx is used to sense the PSU output current and to switches off the current to the zener diodes should the output current become excessive. The 1M0 (logarithmic taper) pot causes the current sensor (TR2) to “kick-in early”, so providing a variable current threshold limit. The value of RX should be (0.7/Amperes) ohms, where Amperes is the maximum output of the bench PSU. The prototype was set to 1-ampere, so Rx should be 0.5 / 1.000 = 0.5 ohms. The resistor should be rated at 1-watt, or 2x 1R0 500mW resistors in parallel for 1-ampere maximum output. I have used 4x 1R0 ohms in parallel (0.25 ohms) and have achieved 2-amperes (with a bigger heatsink).
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Read More Source:http://web.telia.com/~u85920178/use/psu3.htm
Thank you.

Be the first to comment - What do you think? Posted by admin - September 12, 2007 at 9:39 pm

Categories: Power supply, Variable Regulator Tags: 15V variable volt regulator, mini project, Variable Regulator

Power Supply A fixed Voltage of 6, 9 or 12V, max output 1A.

Power Supply A fixed Voltage of 6V, 9V or 12V, max output 1A.
When see the circuit that me will advise this. As a result may think back go to many year , because of the equipment and model old circuit is exceedingly. But I believes in that many you may like. Because be the character of easy circuit , equipment , base , seek easy , build easy with. This circuit be DC power supply model Fix voltage 6V,9V or 12V give current about 1A topmost. Use Zener Diode be formed Regulated part Q1 be Transistor power perform enlarge current tallly go up go out to load next.

Source :http://www.bonavolta.ch/hobby/en/audio/reg_sup.htm