Schematic Diagram: 1

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Wednesday, October 29, 2014

Nmos Power Amplifier Series Part 1

Nmos200 - TO220
A compact power amplifier module capable of up to 200 watts into a 4 ohm load depending on power supply and the output mosfets used. The module is limited to rails of +/- 50v max. The amplifier can be built using either TO220 or TO247 style Mosfets.

Schematic Diagram Nmos200-TO220

Layout Nmos200-TO220

Nmos200 - TO247

Nmos200 - TO247 Stereo

Schematic Diagram Nmos200-TO247

Layout Nmos200-TO247

Saturday, October 18, 2014

1 5v to 9v INVERTER

This very clever circuit will convert 1.5v to 9v to take the place of those expensive 9v batteries. But the clever part is the voltage regulating section. It reduces the current to less than 10mA when no current is being drawn from the output. You can use two or three old cells for the supply and the circuit will totally use up all the energy from the cells. Its a great circuit for using up those old cells. With a 470R load, the output current is 20mA and the voltage drop is less than 10mV. It is best to use 3 old cells as this will deliver about 2.5v to 3v and the circuit will produce an efficiency of about 70%. Adjust the 15k resistor for 9v.

source : http://www.talkingelectronics.com.au/projects/200TrCcts/200TrCcts.html

Tuesday, September 23, 2014

Low Noise Variable Output 1 25V to 12Vdc

This circuit is DC converter low voltage , 12V from be 1.25V to 10Vdc by can give current topmost get about 1.5A. You should use IC number LM317K because have electric many power more the number LM317T. By should hold heat sink. That have large-sized with. The R4 use for fine decorate voltage output. The C1,C3 , and , C2 , for decrease all noise well. The detail is other , see in the circuit.
circuit source by joe (aircraftdesigner)

Friday, September 12, 2014

0 3 to 1 5V LED Flashlight

Its a little wisp of a schema that allows you to drive a blue or white LED from a low voltage. Normally, if you want to light up a blue or white LED you need to provide it with 3 - 3.5 V, like from a 3 V lithium coin cell. But a 1.5 V battery like a AA cell simply will not work. But using the Joule Thief, it works like a charm. Not only does it work with a brand new battery, but it works until the battery is nearly dead-- down to 0.3 V. Thats well below the point where your other toys will tell you the battery is dead, so it can steal every last joule of energy from the battery (hence the name). To learn how to make one, watch the video, which is available in a variety of formats.

Monday, August 25, 2014

Power Supply Variable 1 3V 12 2V 1A Circuit

Power supply circuit to generate output below were variations between 1.3V DC to 12.2V DC with 1A current. In addition, the power supply circuit is also equipped with over-current protection or shield against belebih flow. Power supply circuit is very simple, but the quality is quite good, made her basiskan regulator IC LM723 is a pretty legendary.