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simple lamp dimmer 220v using triac – Circuit Schematic
simple lamp dimmer 220v using triac
A very simple dimmer circuit with only the essentials. (In this circuit, the values are given for a BT138 at 220V AC, for 115V AC you may have to experiment wit...
portable solar lantern circuit uses 6 – Circuit Schematic
portable solar lantern circuit uses 6
This portable solar lantern circuit uses 6 volt/5 watt solar panels are now widely available. With the help of such a photo-voltaic panel we can construct an ec...
10 channel led sequencer schematic – Circuit Schematic
10 channel led sequencer schematic
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usb lamp circuit – Circuit Schematic
usb lamp circuit
A simple USB powered lamp that can be used to light your desktop during power failures. The circuit operates from the5 Voltavailable from the USB port. The 5V f...
1w led driver – Circuit Schematic
1w led driver
This circuit is designed to drive the 1W LEDs that are now commonly available. Their non-linear voltage to current relationship and variation in forward voltage...
step up booster powers eight white leds – Circuit Schematic
step up booster powers eight white leds
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led 230 v flasher circuit diagram – Circuit Schematic
led 230 v flasher circuit diagram
This circuit operates with 230v. you can use this circuit to decorate your parties. I think this will be a wonderful circuit to you all. This circuit was taken ...
ssl3250a photo flash led driver – Circuit Schematic
ssl3250a photo flash led driver
This device has long battery life and low power strain. Another features that this device has are protecting the battery and LED from overloading, trouble free ...
flash light electronic diagram – Circuit Schematic
flash light electronic diagram
With this circuit, the LED blinks every half second. How long the blink time is, can be adjusted by adjusting the value of capacitor C1. Up to 18 additional LED...
led workbench lighting – Circuit Schematic
led workbench lighting
A very useful workbench lighting unit for electronics hobbyists. The portable inspection lamp circuit consists of an on-board voltage regulator and a high-brigh...
Transistor LED flasher – Circuit Schematic
Transistor LED flasher
By simple, I mean that these circuits only flash one or two LEDs. This is opposed to the light chaser circuits that can flash four or more. Of course, the simpl...
Esposito Wang – Circuit Schematic
Esposito Wang
This projects builds upon the 2012 LED Flicker project. The goal is to build an ultra bright, multi-channel test light using extremely high power LEDs driven to...
working principle of sine wave dimmers – Circuit Schematic
working principle of sine wave dimmers
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ch laser – Circuit Schematic
ch laser
The laser diode will be forward biased and its cathode (LDC) will connect to a driver transistor &/or network to regulate the LD current based on the photodiode...
boun light – Circuit Schematic
boun light
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high voltage white led driver – Circuit Schematic
high voltage white led driver
This high voltage white LED driver electronic circuit schematic is based on the NCP5021 IC manufactured by On Semiconductor. This NCP5021 high voltage white LED...
sound activated lamp relay switch – Circuit Schematic
sound activated lamp relay switch
This simple circuit shown int the schematic diagram actives the switch using sound. We can use this circuit for various applications, such as automatic (sound-c...
high efficiency white led driver – Circuit Schematic
high efficiency white led driver
This white LED Driver circuit project is based on the NCP5680 high efficiency white LED Driver ic. NCP5680 supports double power flash LED and torch operation. ...
120 vac lamp dimmer – Circuit Schematic
120 vac lamp dimmer
The full wave phase control circuit below was found in a RCA power circuits book from 1969. The load is placed in series with the AC line and the four diodes pr...
ve170 monitor repair with led – Circuit Schematic
ve170 monitor repair with led
The problem with this monitor is that the power supply for the vacuum tube back lighting dies. The first step is to totally disassemble the monitor into little ...