The circuit includes a clock signal generator IC1, counter IC2, decoder IC3, simultaneous phase-shifting circuit (BG1, BG2, BG3), SCR control circuit S...
2.Pin functions and dataThe TDA7073A is in the 16-pin DIP package, the pin functions and data is shown in table 35, the data is measured from the Amoi ...
The pictures show the Audi A6 central door lock, anti-theft alarm system and internal monitoring control system circuits.The first picture shows the EC...
Creates alternative slow clock cycle for MOS Technology 6502 processor on KIM-1 microcomputer card under eontrol of SPEED SELECT line generated by slow...
Circuit synchronizes multivibrator with line frequency to provide dock waveform required for switching capacitors electronically in npath active filter...
Stable and accurate clock is generated by high-precision 100-kHz crystal oscillator and decade divider ehain. Used in 20-meter receiver as part of digi...
This circuit uses three sections of an LM3900 to form a phase-locked loop (with a center frequency of about 3 kHz using the values shown). National Sem...
The 133MHz multi-channel output clock pulse driving circuit is as shown. It uses the clock pulse driving circuit which is composed of the P149FC32805, ...
When AC municipal electric power is cut off, MCD2 photoelectric isolator perceives the voltage drop, made Schmitt trigger fliped, so the stobe input te...
TDA7297--Two-channel power amplifier ICThe TDA7297 is one kind of audio power amplifier which is produced by the PHILIPS company, and it can be used in...
The main transistor with resistance is a kind of small power tube, which is used as the electronic switch or inverter in household appliances and other...
LS7225 is designed by American LSI company for automatic protective device, which can develop many application circuit. The circuit consists of keyboar...
The system is formed of two separate circuits-a key and a keyhole. The key engages the keyhole by means of a mating pair of connectors. The key is a to...
This hardware-software combination deletes clocks from the slave μP until both μPs synchronize. The firmware loop causes each μP to generate a WR si...
The digital lock circuit consists of buttons S1-S10 (S1-S4 are valid password buttons, S5-S10 are the lock buttons), four RS trigger integrated circuit...
The structure of the circuit is simple, a channel is opened by pressing a corresponding key, meanwhile the other 2 channels are closed. The contactor s...
The LED electronic clock circuit with six functions shown as the chart is composed of XY01 modules. It has six functions of showing month, day, hours, ...
TLC2932 is FLL clock generating IC produced by TEXAS.TLC2932 is mostly used in the DLP projection TV, in order to provide the clock signal for processi...
Signetics 555 timer is used as oscillator to generate nonover-lapping clock pulses as required for most two-phase dynamic MOS memories and shift regist...
The TDA4665 and TDA4665T are designed as the baseband delay IC that is produced by the PHILIPS company, and it can be used in a variety of domestic mul...
The CXA1686M is a clock pulse generator IC produced by the Sony company which is widely used in Changhong NC-3 cassette mechanism series large-screen c...
See as the figure, before AN is pressed, SCR1 is blocked, the relay or contactor is still, which is equal to OFF state. When AN is pressed, with the he...
This circuit is composed of the anti-theft host computer, the door magnetic sensor trigger switch, the micro vibration sensor switch, the electric cont...
The circuit diagram shown below appears one wire vaccum control of pneumatic locking which is popular with Jaguar, Audi and Mercedes Pneumatic . It use...
This paper introduces the Electronic Combination Lock (2N3904). This principle is easy to understand, but also very practical. Depth understanding of c...
National MA1003 automotive/instrument clock module combines MM5377 MOS LSI clock with 4-digit 0.3-inch green vacuum fluorescent display,2.097-MHz cryst...
This circuit depends on the entry of a correct sequence code. An incorrect number that is not part of the code causes the circuit to reset. When the co...
The FCM CT7001 clock chipis produced by the Fairchild company, and this device let the 6-digit 7-segment LED display the time of 12h or 24h, and also h...
Phone number coded lock circuit is shown as above,this picture is the specific application circuit of digital password integrated blocks BA9101,it is c...
This circuit is used in contests,games,etc When a contestant presses one of the buttons,an SCR triggers,lighting the associated LED and preventing anyo...
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