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  • The clock timing principle circuit

    2017-01-08 10:16:0562

    Related components PDF download:AT89C2051A1015C1815In the internal RAM of the single chip microcontroller, we need to set the display buffers, the hour...

  • VTR_CLOCK

    2017-01-08 10:08:5060

    Locked oscillator using only two-input NAND gate and 555 timer provides logic clock signal for videotape recorder. Vertical sync signal, stripped from ...

  • Dongfeng Peugeot Citroen Picasso 2.0L sedan digital clock ou

    2017-01-08 09:57:1560

    Dongfeng Peugeot Citroen Picasso 2.0L sedan digital clock outside temperature circuit shown in Figure:...

  • DC_BLOCK_FOR_ACTIVE_ANTENNA_AND_DOWNCONVERTERS

    2017-01-08 09:48:2362

    A suitable dc block and power source for active antennas and downconverters can be made from a few components as shown. This circuit is suitable for fr...

  • TDA8351 integrated block internal box circuit

    2017-01-08 09:42:2261

    TDA7050--Two-channel power amplifier ICThe TDA7050 is designed as one kind of two-channel power amplifier IC that can be used in the low voltage walkma...

  • Four-phase clock source circuit

    2017-01-08 09:40:2061

    The four-phase clock source circuit is composed of the synchronous mode 4 counter (74107 J-K trigger) and the decoder SN74 LS139. The output of it is t...

  • Practical 3-button interlock electronic switch circuit

    2017-01-08 09:34:5762

    The circuit structure is simple, when you press any key, the corresponding channel opens. And the contact point's jitter does not affect the circuit's ...

  • CENTERING_CLOCK_SIGNAL

    2017-01-08 09:02:3661

    Circuit generates DC bias across complementarv outputs of Motorola MC10131 flip-flop for optimum operation with emitter-coupled logic (10,000 series).B...

  • digital clock principle box circuit

    2017-01-08 08:53:3460

    Digital clock system1. Digital clock constitutes: oscillator, divider, counter, decoder, display and other parts 2. The hours, minutes and seconds of t...

  • Clock singal circuit composed of TTL circuit

    2017-01-08 08:49:4261

    The circuit is as shown, it is composed of four negation gates. The oscillation singal frequency is decided by the parameters of C, potentiometer RP1, ...

  • Central locking、guard against theft and alarm system and in

    2017-01-08 08:37:3460

    Automatic transmission electronic control unit、magnetic valve、mandatory low-speed switch、multifunction switch circuit diagram as shownWelcome tra...

  • Intelligent charging system schematic block circuit

    2017-01-08 08:33:1561

    The chip is the three-terminal isolated PWM monolithic switching power supply integrated circuit, which is produced by the United States Powergration. ...

  • Telephone anti-theft trick lock circuit

    2017-01-08 08:23:5960

    Telephone anti-theft trick lock circuit is shown as above, this lock's specific functions as follows: 1.1~4 any limited prefix numbers, such as 0 , 173...

  • Basic Wide Range Phase Locked Loop (PLL)

    2017-01-08 08:07:3462

    A phase-locked-loop (PLL) is a servo system, or, in other words, a feedback loop that operates with frequencies and phases. PLLs are well known to be q...

  • LOCK_DETECTOR

    2017-01-08 08:02:1161

    This PLL lock indicator not only can detect a 'locked or off-of-lock condition, but also even if a single pulse or transition has been missed.When bein...

  • TWO_PHASE_CLOCK_FOR_8080_1

    2017-01-08 07:55:1762

    Typical clock design for Intel 8080 microprocessor system uses carefully designed logic sequence and level translation in combination with 32-MHz cryst...

  • The central door lock, radio and antenna circuit of Daewoo R

    2017-01-08 07:52:0761

    The central control door lock is controlled by keys(from outside) or handle(from inside) cf the driver door lock. When it is at the unlock position, th...

  • PLL_LOST_LOCK_INDICATOR

    2017-01-08 07:48:1260

    Developed for use with phase-locked loop to indicate both acquisition and loss of lock. Based on concept that lock exists as long as static-phase error...

  • 82C250 functional block circuit diagram

    2017-01-08 07:26:4664

    Figure 1 shows a functional block diagram between CAN controller and interface circuit 82C250 of physical bus. 82C250 is able to provide differential r...

  • FREQUENCY_BASED_LOCK

    2017-01-08 07:22:5560

    The system is formed by two separate circuits-a key and a keyhole. The key engages the key-hole with a mating pair of connectors. The key is a tone-gen...

  • 24_hour_clock_without_the_1_hertz_reference_circuitry

    2017-01-08 07:22:0061

    24-hour clock without the 1-hertz reference circuitry. It provides seconds, minutes and hours (courtesy Motorola Semiconductor Products Inc.)....

  • Receiver building blocks circuit (1N4002)

    2017-01-08 07:21:4860

    This article describes the Receiver building blocks circuit (1N4002). The content is very simple, very helpful. Components in this article can help you...

  • FAW bora (1.8L) saloon car starting locking、reversing light

    2017-01-08 07:18:0360

    FAW bora (1.8L) saloon car starting locking、reversing light and automatic transmission unit circuit diagram as shown...

  • Beam blocking alarm

    2017-01-08 07:13:5761

    As shown,when the photosensitive resistor R4 is under light, its resistance is small, so the transistor VT1 and unidirectional thyristor SCR are closed...

  • CLOCK_GATE

    2017-01-08 07:02:1760

    Provides effective gating with negligible insertion loss. Used as part of clock driver for developing and testing large digital computers.-S.Schoen,Tra...

  • Sharp Sasiu CA1/CA10 Chassis Block and Circuit Diagram (CA10

    2017-01-08 07:00:5966

    Sharp Sasiu CA1/CA10 Overall block diagram of the CA10 chassis, mains filter and indicator circuit, mains rectifier circuit, power supply waveforms, CA...

  • PLL using 4046 - Phase Locked loop

    2017-01-08 06:59:2261

    CD4046 is a PLL or phase lock loop, it mainly consists of a VCO and phase comparators. This is a component in FM demodulation and modulation. It is use...

  • Braking、electronic differential lock and TCS electronic con

    2017-01-08 06:58:3162

    FAW bora (1.8L) saloon car braking、electronic differential lock and TCS electronic control unit circuit diagram(add two) as shown...

  • TDA7056 integrated block internal box circuit

    2017-01-08 06:41:0261

    The TDA4854 is designed as one kind of I(2)C bus control line, field scanning integrated circuit which is produced by the PHILIPS company, the pin func...

  • PDM_WITH_CLOCK

    2017-01-08 06:21:2262

    First section of Exar XR-2556 dual timer operates as pulse-duration modulator and second section as clock generator, eliminating need for external cloc...

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