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  • Digital Clock with Timer and Solar Panel Regulator

    2017-01-07 05:44:5161

    This is a combination digital clock timer and solar panel charge controller used to maintain a deep cycle battery from a solar panel. The timer output ...

  • POSITIVE_GATING_OF_CLOCK_PULSES

    2017-01-07 05:39:4261

    Adding scr latch to diode gate allows output to follow dock input when S1 is dosed. When S1 is open, output will be fixed at existing dock level, witho...

  • 555 sound control lighting electronic wall clock circuit

    2017-01-07 05:37:5260

    As the figure 15-33 shows, the circuit is composed of the voice sensor, the monostable trigger, the counter and the timing circuit.etc.The voice sensor...

  • Clock_sweepable_pseudo_bandpass_notch_filter

    2017-01-07 05:27:0861

    This circuit shows an LTC1062 connected as a simple clock-sweepable bandpass/notch filter. Figure 7-20B shows the frequency response for a clock freque...

  • PULSE_SHAPER_FOR_600_KC_CLOCK

    2017-01-07 05:22:4460

    Oscillator input through Q1 switches Q2 on,and same input fhrough Q3 switche Q2 of afer fixed delay, to produce desired rectangular clock pulse.-S.Scho...

  • The simple power-off self-lock circuit

    2017-01-07 05:22:1967

    When the grid is supplying power normally, it is like an ordinary switch. By pressing K1, the 220V AC is distributed to the dual-way SCR as the trigger...

  • Four-channel interlock remote controller

    2017-01-07 05:19:4561

    Four-channel remote interlock is composed oftransmitter and receiver.Transmitter circuit diagram.Receiver circuit diagram....

  • DIGITAL_ENTRY_LOCK

    2017-01-07 05:01:4161

    A keypad enters a four-digit access code, which is programmed via jumpers on a 24-pin plug-in header and socket. U1 is an LST220, which detects a four-...

  • Telephone electronic coded lock circuit

    2017-01-07 04:44:2261

    Telephone electronic coded lock circuit is shown as above,the electronic coded lock is suitable for double audio circuits.After the phone adds this cod...

  • Indian ISP Reliance and Airtel blocks Torrentz Dailymotion V

    2017-01-07 04:33:2360

    The Indian ISPs(Internet service providers) likeReliance and Airtelblocks many popular websites like Torrentz.eu (and many torrents file sharing websit...

  • 555 hotel security electronic lock device circuit

    2017-01-07 04:23:2560

    The control circuit is composed of the IC1(555) and the R1~Rn,R0,C1, it produces many kinds of oscillation frequency signals in the range of 10Hz~...

  • TWO_PHASE_CLOCK_FOR_8080

    2017-01-07 04:21:2060

    Crystal oscillator opetating at twice desired dock frequency uses pi network R1-C1-X1-C2 providing 180°phase shift required for positive feedback to i...

  • Operational amplifier anti-blocking circuit

    2017-01-07 04:15:1560

    If we add the large signal or the larger interference to the reverse phase input port of the operational amplifier, the amplifier always can't work nor...

  • Single_cell_temperature_compensated_crystal_clock

    2017-01-07 03:45:3961

    This 1.5-V oscillator provides a temperature-compensated output without the use of a current-consuming oven. Figure 8-15B shows the compensated-versus-...

  • Infrared Remote Control Antitheft Coded Lock Circuit

    2017-01-07 03:44:0760

    YYH26 and YYH28 can compose at least 4 million different groups of codes when these two are working in pairs. It is very different to decipher so it wi...

  • AC_DC_CLOCK

    2017-01-07 03:34:4762

    When AC power fails, MCD-2 optoisolator senses voltage drop and makes Schmitt trigger force strobe input of clock chip to ground, blanking display and ...

  • TDA7056 integrated block typical application circuit

    2017-01-07 03:34:1860

    The TDA4856 is designed as one kind of linefield scanning front class front-end B+ power control circuit, and it can be used in a variety of computer c...

  • Digital alarm clock circuit diagram

    2017-01-07 03:33:2460

    U1 is the 3817 integrated circuit. It has the ability to drive the display directly, and it can display 12h or 24h, schedule alarm sounds, timely and a...

  • Schematic diagram of clock circuit composed of AT89C2051

    2017-01-07 03:30:0661

    The circuit composition determines that the LED adopts anodic Nixie tube. It can use LQ5101BS general luminous diode and the driving triode can use 2SA...

  • 60_Hz_CLOCK_PULSE_GENERATOR

    2017-01-07 03:26:1361

    The circuit provides a clean, stable square wave and it will operate on anywhere from 6 to 15 volts. The IC and color-burst crystal are the kind used i...

  • 555 multi-function digital control lock circuit

    2017-01-07 03:19:0361

    As the figure 15-20 shows, the multi-function digital control lock uses the digital control lock ASIC LS7225 as the core, and this control lock circuit...

  • Mazda 626 door lock Circuit Diagram

    2017-01-07 03:03:0463

    Reprinted Url Of This Article: http://www.seekic.com/circuit_diagram/Automotive_Circuit/Mazda_626_door_lock_Circuit_Diagram.html...

  • Electronic Combination Lock using IC LS 7220

    2017-01-07 02:59:3161

    Electronic Combination Lock Circuit Description This is the circuit diagram of a simple electronic combination lock using IC LS 7220.This circuit can b...

  • 1_PPS_CLOCK_GENERATOR

    2017-01-07 02:56:1161

    Uses unique magnetic shift register in which elements are connected in rings, with output of first element connected to input of first. Each ring has o...

  • lock control intelligent anti-theft with TX982 circuit

    2017-01-07 02:51:5761

    Lock control intelligent anti-theft with TX982 circuit is the lock intelligent alarm control unit designed for balcony’s anti-theft, just as shown in...

  • FLIP_FLOP_BUILDING_BLOCKS

    2017-01-07 02:38:1860

    Inductively coupled flip-flops are put together to form shift register. Both signal and shift pulses are positive. Operates reliably over wide ranges o...

  • TMS3450NL Digital Clock Integrated Circuit Diagram

    2017-01-07 02:20:08139

    TMS3450NLis digital clock integrated circuit produced by Toshiba Corporation. It is widely used in various kinds of digital clock and auto clock circui...

  • MC45162 programmable phase-locked loop frequency synthesis m

    2017-01-07 02:19:3560

    The MC45162 is designed as one kind of programmable phase-locked loop frequency synthesis modulation and demodulation integrated circuit that is produc...

  • PHASE_LOCKED_100_kHz_REFERENCE

    2017-01-07 02:17:5661

    Uses 4-MHz crystal in oscillator, with voltage-variable capacitor VVC in parallel with fixed and variable capacitors for setting frequency precisely. V...

  • The frequency lock indicator formed by CD4046

    2017-01-07 02:10:2869

    It can design a frequency lock indicator based the output features of two phase compatators of the lock circuit under the condition of locking frequenc...

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