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Stepless triac dimmers – Circuit Schematic
Stepless triac dimmers
Closed lights switch S, 220V AC via RP1, RP2 R and the capacitor C2 is charged when the voltage across C2 reaches diac breakover voltage of VD, VD and triac vs...
High-rise residential walkway lighting control circuit – Circuit Schematic
High-rise residential walkway lighting control circuit
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 win...
Four flashing lights string circuit 2 – Circuit Schematic
Four flashing lights string circuit 2
Clever use of a four-way slowly dimming LED driver integrated iU shoe production and Qis four flashing lights string controller. Ten Electronics Co., Ltd. Wenz...
Flashing light controller with LM567 production – Circuit Schematic
Flashing light controller with LM567 production
Cl, VDI, VD2, C2 composed of simple capacitive step-down voltage regulator circuit + rectifier output of about 8v DC voltage for LM567 electricity. 5,6 feet ma...
220V AC powered LED lamp drive circuit diagram – Circuit Schematic
220V AC powered LED lamp drive circuit diagram
Circuits, C1, R1, varistors, L1, R2 filter circuit composed of a primary power supply, can filter out transient overvoltage input, C2, R2 down circuit composed...
Nightlight lighting circuits – Circuit Schematic
Nightlight lighting circuits
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...
Electronic Ballast circuit diagram – Circuit Schematic
Electronic Ballast circuit diagram
Circuit works The fluorescent lamp electronic ballast circuit by the rectifier filter circuit, high-frequency oscillation circuit and output circuit. Circuit, ...
Incandescent Yeonsu electronic controller 1 – Circuit Schematic
Incandescent Yeonsu electronic controller 1
Circuit work process is: When the momentary switch S between, since the voltage across the capacitor can not change suddenly, the Pi C zero voltage across the ...
Wire color music lantern controller – Circuit Schematic
Wire color music lantern controller
Circuit wire two-color music lantern controller is shown in Figure 1-44 below. a, b terminals at both ends of the speaker according to the speaker, the speaker...
ld168 audio control circuit diagram of a voltage-controlled flash decoration – Circuit Schematic
ld168 audio control circuit diagram of a voltage-controlled flash decoration
Circuit shown in Figure, LD168 is a flash of tape recorders speaker for sound level indication ASIC. It has four outputs can directly drive a plurality of ligh...
555 practical DC stepless dimmer circuit diagram – Circuit Schematic
555 practical DC stepless dimmer circuit diagram
Circuit shown in Figure dimmer to 555 as the core component. 555 and R1, RP, R2, C1 composition astable multivibrator, the oscillation frequency f 1.44/(R1 + R...
Fans of natural wind simulator circuit 2 – Circuit Schematic
Fans of natural wind simulator circuit 2
Circuit shown in Figure 3-9. It is similar to Figure 3-8, except that zero off MOC3061 type photoelectric coupling B directly connected to control fan operatio...
Fans can light three-gear speed control circuit – Circuit Schematic
Fans can light three-gear speed control circuit
Circuit shown in Figure 3-5. It can be manual (button SB) and light control (phototransistor VTj). When the light of a flashlight quasi VTi, fans will turn on ...
Stairs Corridor light-controlled circuit – Circuit Schematic
Stairs Corridor light-controlled circuit
Circuit shown in Figure 2-50. This circuit uses field effect tube should, through the ingenious electronic components constitute a unique self-lighting control...
Thermistor lights lighting delay circuit – Circuit Schematic
Thermistor lights lighting delay circuit
Circuit shown in Figure 2-49. The circuit is very simple, cold PTC thermistor element, jump characteristic thermal resistance of the lamp to control delay time...
Using optocouplers lighting circuit lights a delay – Circuit Schematic
Using optocouplers lighting circuit lights a delay
Circuit shown in Figure 2-48. Circle 2-48 (a) using 4.5V battery powered; Fig. 2-48 (b) AC capacitors drop voltage supply. Figure 2-48 (a) the delay time is de...
Blinker circuit 2 – Circuit Schematic
Blinker circuit 2
Circuit shown in Figure 13-4. It uses triode control. Two transistors VTi, VTz by capacitive coupling C, so that they alternately turn on and off, so that H pr...
Blinker circuit one b – Circuit Schematic
Blinker circuit one b
Circuit shown in Figure 13-3. Figure 13-3 (a) DC power supply, Figure 13-3 (b) with AC power. They are used to control the relay. Flash frequency is determined...
Light control principle circuit rooster crows – Circuit Schematic
Light control principle circuit rooster crows
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)...
Lamp touch switch circuit diagram – Circuit Schematic
Lamp touch switch circuit diagram
Circuit principle as shown, neon tubes N1, N2 and photosensitive resistance RG1 constitute an optocoupler. When touching the metal sheet S1 with a finger, N1 l...