Lighting Circuits
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It uses thyristor control. Flash frequency is determined by Ri, RP, Rz and C. Adjusting the electrical locator RP, can change the flash frequency 0.5Hz to several Hz... -
It uses CD4584B six Schmitt trigger IC (Di ~ Ds). Wherein Di and Ri, RG composition photometric circuit, D2 and RP, C2 composed of adjustable frequency (adjustment potentiometer RP) ultra-low frequency oscillation device, D3 ~ D6 in parallel as output.... -
This example is a particularly strong sense of jumping novelty lights, flashing its control order to take a 1 3-2-4 vault chase mode, the line shown. Diodes VD1-VD4 form a bridge rectifier circuit, the output of the full-wave rectified voltage lights as.... -
Automatic emergency lighting circuit shown, it is suitable for families install yourself. Because it uses smaller components, the price is cheaper. When the normal power supply mains, 220V AC mains voltage through capacitor CI ire.k pressure, and then by a.. -
6-35kV cable line substation, into its line of lightning protection can be Figure (a), the protection of access lines; for single-core cable, the end of the metal sheath shall .. -
A circuit towel} {more i guess oscillations are composed, respectively r Houle Wang oscillator sweep enlighten transistor Ti, n and n, 7j composition. Q constants rl day cycle .. -
A resistor R8, capacitors Cd and thyristor V AC switch delay composition. Lamp lighting delay time is determined by Rs, C4. Press the component parameters as shown in Figure 2-.. -
A simple half-wave rectifier capacitor step-down regulator circuit VD1, VD2, Cl, C2 composition, after power across capacitor C2 available DC voltage of about 12V, the transist.. -
AC by VDI ~ VD4 full-wave bridge rectifier output pulsating DC power for four lights. Rl, R2, VD5 simple composition and VD6 regulator circuit, Cl filtered output by about 6V D.. -
Adjustment potentiometer RP, can change the sensitivity of the device. Capacitors Cl as an anti-light interference of instantaneous action. .. -
An air bridge after whole bullock Phi Beach, Sichuan hoof direct beam lights Wherever control called road six buildings frog buck filtered output ul fiV altar right voltage for.. -
As shown below, is described in a minibus odometer circuits, the odometer and speedometer is electronic, mechanical integration combination of new instruments. Pulse signal out.. -
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Automatic light control circuit lights automatically illuminate the lamp when dark, lights automatically turn off when daybreak. (1) One of the automatic light control circuit .. -
Automatic multipurpose emergency lights circuit is shown. Usually emergency lights connected to the mains, in fully charged standby. When a sudden power failure and sudden ambi.. -
By the transistor VTi, VT2 composition self-excited multivibrator output signal VT3 put large after a thyristor trigger pulse. Adjustment potentiometer RP, can change the oscil.. -
CS9482 integrated circuit fabrication with holiday lights circuit shown in Figure 2-37. Since the CS9482 chip already has 4.1V voltage regulator circuit, the external circuit m.. -
Charging circuit by the transformer Tl, diode VDI-VD4 and other components, 220V AC by Tl buck, VDI ~ VD4 rectification, CI smoothing filter into DC power to charge the battery.. -
Chip has four built +8 kinds of tricks jumps procedure for the control of the double bond. Connected to 6 feet of function selection buttons SB2 is key, then the key SB1 is 5 f.. -
Circuit SH-805 made holiday lights controller shown in Figure 2-64, it can be seen from Figure SH-804 circuit board of the same, but the pin locations manifold and control func.. -
Circuit operation principle of the device shown in Figure 11. Power outages are frequent thing, but some occasions, the power does not allow (such as the ongoing surgery, etc.).. -
Circuit principle is shown in FIG apparatus. When the night light irradiation on the photosensitive resistor RG, RG of great resistance, (much larger than 50K), so the LSE O, f.. -
Circuit, power supply circuit consists of step-down capacitor c1, bleeder resistors R, Zener diode vs, the entire diode VD and filter capacitor G, switches and batteries GB s c.. -
Click the button switch Sl-Sn, lights that light, the power is turned on while the transformer T, the low-voltage alternating current through the secondary winding down of a br.. -
Closing the switch S. SCR vs through resistors R1, R2 and S trigger current and get opened, charged with H lamp that is eligible for the full-wave AC normal light; open the swi.. -
Colorful decorative lights loop circuit shown in Figure 3-22. It consists of the power conversion circuit, a clock signal generator toner color and lighting control circuit of .. -
Commonly used single display driver circuit TA 7366/7367 is manufactured by Toshiba Corporation 5 LED driver circuit, it adopted a 9-pin single in-line with plastic structure, .. -
Although white LEDs are common in a variety of lighting applications, their 3 to 4V forward-voltage drop makes low-voltage applications challenging. Charge pumps and other ICs are available for driving white LEDs, but they generally don`t work with the low.... -
My circuit adds a transistor, to add feedback, and two resistors, to tailor the range of the control, with the result that a single-turn potentiometer gives a control range of about 2 to 30 microamps. I installed my circuit in a small plastic box, and.... -
This idea demonstrates three uses for the humble LED. The circuit in Figure 1a forms a simple light detector that latches and turns on an LED when the ambient light exceeds a preset limit determined by potentiometer P1. LED D1 is both the indicator and the.... -
Many people favor different light and temperature settings for different rooms depending upon their mood or whether they are working or relaxing. The circuit in Figure 1 controls the intensity of the artificial light in a room and monitors the temperature of....
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In some applications, you need to detect light signals in the presence of background light whose intensity can change by orders of magnitude. The circuit in Figure 1 uses an integrated photodiode/amplifier (OPT201) in conjunction with an integrator that....
New Circuits
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This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of.... -
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is.... -
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to.... -
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This.... -
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the.... -
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,.... -
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the.... -
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power.... -
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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