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Levitation PWM – Circuit Schematic
Levitation PWM
The switched controller that I used is nice, but a PWM (pulse width modulation) circuit is better. It provides cool-running operation and linear operation. It c...
Triac-Construction and Operation – Circuit Schematic
Triac-Construction and Operation
The triac is another three-terminal ac switch that is triggered into conduction when a low-energy signal is applied to its gate terminal. Unlike the SCR, the tr...
Triac Applications – Circuit Schematic
Triac Applications
Next to SCR, the triac is the most widely used member of the thyristor family. In fact, in many of control applications, it has replaced SCR by virtue of its bi...
SCR Applications – Circuit Schematic
SCR Applications
The ability of an SCR to control large currents to a load by means of small gate current makes the device very useful in switching and control applications. A f...
scr applications – Circuit Schematic
scr applications
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Few Switching regulator circuits – Circuit Schematic
Few Switching regulator circuits
Switching regulators work by drawing small amounts of energy from the input source and transferring it step by step to the output. This task is attained by usin...
Diac Applications – Circuit Schematic
Diac Applications
The diacs, because of their symmetrical bidirectional switching characteristics, are widely used as triggering devices in triac phase control circuits em ­ploy...
Compact Switching Step-Down Converter By MAX639 – Circuit Schematic
Compact Switching Step-Down Converter By MAX639
Switch-mode power supplies are used in electronic circuits to increase (step up) or reduce (step down) voltage levels in the most efficient manner possible. Com...
electronic toggle switch no1 – Circuit Schematic
electronic toggle switch no1
This simple circuit will energize and de-energize a relay at the push of a button. Any type of momentary action push-to-make switch can be used. Pushing the but...
2 watt switching power supply – Circuit Schematic
2 watt switching power supply
In this small switching power supply, a Schmitt trigger oscillator is used to drive a switching transistor that supplies current to a small inductor. Energy is ...
optoisolated adapter – Circuit Schematic
optoisolated adapter
This design adapts such a high voltage flash for use on a low voltage camera by using an optocoupler to electronically isolate the camera`s contacts from the hi...
Basic mosfet switch question – Circuit Schematic
Basic mosfet switch question
In this schematic, provided by Jimmy M, would this circuit drain the batteries when the light is not in use? I`m considering building a mosfet circuit like this...
Can a homebrew FET circuit replace a NTC – Circuit Schematic
Can a homebrew FET circuit replace a NTC
Design cicuit using a power mosfet to replace the NTC (thermister) that many Mag623 users employ to prevent their bulbs from flashing. Although inexpensive and ...
how to configure a relay to a transistor – Circuit Schematic
how to configure a relay to a transistor
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simple thyristor circuits explained – Circuit Schematic
simple thyristor circuits explained
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electronic circuit breaker – Circuit Schematic
electronic circuit breaker
A circuit breaker is an automatically-operated electrical switch designed to protect an electrical circuit from damage caused by overload or short circuit. Its ...
1KW V MOSFET – Circuit Schematic
1KW V MOSFET
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wpmp switche mobile – Circuit Schematic
wpmp switche mobile
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AV Switch circuit – Circuit Schematic
AV Switch circuit
Before applying power, check for shorts on the board. This design runs from a FIVE volt supply, connecting it directly to a 12 volt supply will kill it for cert...
power switching controllers external switches – Circuit Schematic
power switching controllers external switches
The ADP1864 is a compact, inexpensive, constant-frequency current-mode step-down dc-to-dc controller. The ADP1864 drives a P-channel MOSFET that regulates an ou...