Darlington phototransistor type light-sensitive switch control circuit application As a result of Darlington type phototransistor do sensitive element, the low light sensitive ..

DC power supply is a helium-neon laser excitation power supply currently used the most common form of power, there is shown a laser printer used in the road, Tl as power transf..

Construction LED circuit shown in Figure. It requires manual power, after the circuit is powered, the light will blink to remind people to pay attention to safety. ..

Explanation The circuit is nothing more than two light emitting diodes (D1 and D2), its position is controlled by the temperature of the surrounding environment. Here the tempe..

Driving series white LED, flowing through the same song in each white LED current, it is possible to obtain a uniform brightness. The disadvantage of the tandem drive is the dr..

Drive the light emitting diode is shown in the digital display circuit, the count signal to ICM7217 feet in the chip by the count and after the coding process to drive the digi..

Configure National Semiconductors DS8877 drive circuit as shown, when the 6 digit calculator and digital current conjunction, the current range is 5 to 50mA. Drive does not req..

Core device is a circuit pyroelectric infrared sensor BH, when it felt the trace infrared body issued a sensor inside the element will obviously feel that their process of chan..

Features automatic weapons such magnetic switch circuit is very simple, reliable, low failure rate, good versatility, can be used to output the performance or can be converted ..

Fans can achieve remote control switch, speed control, remote control can also be achieved in other household switches. Its main feature is the use of sub-transmission side ult..

Each issue a specific frequency of sound, audio remote control will switch changes state, the circuit for other frequencies emitted by the environment sound with strong anti-in..

FIG potentiometer RP2 sliding contact with the axle shaft is directly connected to the antenna. Only when given potentiometer RP1 and RP2 refers in the same position, only non-..

F9500 is the power supply in the United amplifier circuit preamplifier. The power supply using LM7824 and LM7924 composition 42V servo regulator power supply, Huang NE5532 op a..

DTL integrated circuit constituted by a crystal oscillator a DTL is shown by the crystal oscillator integrated circuits, and the oscillation frequency is 100 kHz and 1 MHz. It ..

Crystal oscillator and frequency divider (74LS04) circuit diagram: ..

Crystal oscillator circuit consists of several gates as the d Several gates as shown by a crystal oscillator circuit. FIG. (A) to l MHz crystal oscillator circuit, the figure (..

Crystal oscillator integrated circuits, namely two 10 MHz and 20 MHz oscillation frequency diagram of the oscillator circuit. ..

E crystal oscillator circuit composed of several gates Several gates as shown by a crystal oscillator circuit. FIG. (A) to l MHz crystal oscillator circuit, the figure (b) is 2..

Doubling rectifier circuit in negative ion generator application circuit ..

D/A conversion circuit by the DAC0832 and op amplifier LM358, etc., there are two bad-out channel, unipolar voltage output. Digital output range: OO-H FFH, corresponding to an ..

Controllable gain amplifier is an automatic gain control circuit of the execution unit, the main method of controlling the gain of the amplifier in two ways: One way is through..

DW15-200-630A breaker solenoid DC solenoid structure, short-time working. (1) DK-1 control box using AC power switch on the electromagnet circuit circuit is shown in Figure 6-7..

Controlled pulse signal generating circuit FIG controllable pulse signal generating circuit, when the input terminal O start (start) pulse signal (input high), electric road be..

Denote cam controller SA 1 contact closure case. M1 is 1. 35kW driving motor, Mz to 4kW pump motor. ..

Factories and enterprises lOkV and below the circuit breaker commonly used CD10 (formerly CD2) type electromagnetic actuator. This type of mechanism itself has a mechanical ant..

FIG load test is a control circuit. This external load circuit up to 10A, widely used in the drive test power, the power amplifier, LED solenoids and relays, and the carrying c..

FIG SD501E is J tie fan IC, which has the following characteristics a 7 5 ±progressive Timing: round strong, medium. Weak block touch speed; normal, natural wind and sleep wind..

FGDF-3 three-phase low-temperature iron plating power commutation control switch and electronic circuit KGDF-3 low-temperature iron plating power supply device having a single-..

Extended delta decompression starter, that is, when the motor starts its three -phase winding set to take part, eatY coupling, connected to another part of links, the entire ex..

Dynamic noise reduction circuit and a DC volume, tone balance control circuit, which is applied to the input stage and the discharge line between the amplifier. See DC volume c..

Each motor with independent drive, but only one frequency for a given device, which uses the same RP potentiometer to achieve a multiple motors in parallel. ..

Electronic Table (1) Introduction This schematic circuit having two alarm output by the timer by thyristor controlled. Can any on/off, and shut down after the power supply from..