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Robot eyes circuit – Circuit Schematic
Robot eyes circuit
Robot eyes circuit of Service A simple circuit to simulate a man appointed to It is a dual-lamp working in a manner UNSTEADY Circuit diagram....
light dimmer circuit – Circuit Schematic
light dimmer circuit
This circuit operates at potentially lethal 220V AC mains voltage. The circuit should be built and used only by people who know hot to safely work with such dan...
LM339 Using for LED VU Meter – Circuit Schematic
LM339 Using for LED VU Meter
This circuit in below uses two quad voltage comparator using IC LM339 to illuminate a series of 8 LEDs indicating volume level. Each of the 8 comparators is bia...
The simple solar energy of adaptation supplies power the control device of the street lamp designs and realizes – Circuit Schematic
The simple solar energy of adaptation supplies power the control device of the street lamp designs and realizes
Have already gone through 3 stages till a few days ago in the developing of street lamp control device of solar energy: First generation function simple and cru...
Small-scale LCD LED in a poor light drives the circuit design consideration – Circuit Schematic
Small-scale LCD LED in a poor light drives the circuit design consideration
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LED outline display control unit cipher scheme on the basis of the one-chip computer – Circuit Schematic
LED outline display control unit cipher scheme on the basis of the one-chip computer
LED guard-rail tube has another name called beautifully the tube, it is a kind of advanced LED decorative illumination lamp decoration products. Use LED of red,...
LED based on AT91M42800A reveals system design – Circuit Schematic
LED based on AT91M42800A reveals system design
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Large-scale LED display system hardware structure and principle – Circuit Schematic
Large-scale LED display system hardware structure and principle
The large-scale LED display system adopts the line by line scan and lists the driving means to save the expenses of hardware, it adopt 1/16 it is non-interlaced...
High-speed control scheme LED display screen circuit diagram and principle – Circuit Schematic
High-speed control scheme LED display screen circuit diagram and principle
This is a high-speed control scheme LED display screen circuit theory. Adopt the MCS51 series one-chip computer to control LED display screen; The random access...
Design a esthetic and energy-conserving acousto-optic controlled lighting lamp of corridor – Circuit Schematic
Design a esthetic and energy-conserving acousto-optic controlled lighting lamp of corridor
The optically-controlled circuit has essential function in urban street lamps or corridors are lighted, adopt the optically-controlled circuit, can open and shu...
BCD seven sections of nixie tubes reveal the decoder circuit – Circuit Schematic
BCD seven sections of nixie tubes reveal the decoder circuit
Luminescent diode LED Made of GaAs of special semiconductor material, gallium arsenide photphide, etc. can use singly, also can assemble the segment type or lat...
20- 40W electronic ballast principle and maintenance – Circuit Schematic
20- 40W electronic ballast principle and maintenance
The shortcoming of the inductive ballast is that volume and weight are larger, one`s own power consumption is great, there are noises. The electronic ballast ha...
Light dimmer circuits – Circuit Schematic
Light dimmer circuits
1200 Watt lamp dimmer circuit The circuit is a lamp dimmer circuit that is capable of controlling up to 1200 Watts. The circuit uses the Q4015LT combination Dia...
Optoelectronic circuits – Circuit Schematic
Optoelectronic circuits
Amateur laser construction basic information on the construction of various types of lasers from scratch including: home-built laser safety, setting up a home l...
LED Powering Design circuit – Circuit Schematic
LED Powering Design circuit
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Simple Emergency Lamp – Circuit Schematic
Simple Emergency Lamp
The circuit within the dotted line for a mini emergency light can be incorporated into any battery eliminator, provided the eliminator`s voltage is higher than ...
LED Drivers/LCD Bias – Circuit Schematic
LED Drivers/LCD Bias
I have a circuit (see attached) provided by an LCD manufacturer that illustrates using the POL signal from the display to derive the VCOM signal. From what i`ve...
Rub the lamp and make a wish – Circuit Schematic
Rub the lamp and make a wish
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Firefly Lights Circuit – Circuit Schematic
Firefly Lights Circuit
It functions like almost any 555 astable timer, except that the LED is inserted into the capacitor reset path so that when pin 7 discharges C1 to common, this r...
Lighting control circuit – Circuit Schematic
Lighting control circuit
After being incredibly careful about every orientation of every weird transistor, I designed the board around a LM387N , which is not the chip I intended or t...