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  • ENGINE_BLOCK_HEATER_MINDER

    2017-01-06 11:36:5760

    If you live in the frozen north, knowing your engine-block heater is working is a comfort. This device will let you know if yours is okay. Plug in PL1 ...

  • Simple Circuit of Clock Phase Adjustment

    2017-01-06 11:30:1561

    The picture shown in picture A is a hexadecimal inverter which is used to generate 30~160NS delay.Delay time of every level is 5~35NS and its value dep...

  • The phase-lock loop frequency doubler (9316)

    2017-01-06 11:14:3660

    In the circuit is the phase-lock loop frequency doubler. This circuit can switch the 1MHz standard frequency into the 10MHz reference frequency, and th...

  • CESIUM_CLOCK_SYNTHESIZER

    2017-01-06 11:10:4662

    Crystol 5-Mc oscillator is monitored by natural resonance frequency of cesium (9,192.63184 Mc) to get primary frequency standard. Output signals are 10...

  • 12_OR_24_h_CLOCK

    2017-01-06 11:07:3860

    Single American Microsystems AMI S1736 clock chip drives Iiquidcrystal readout to give either 12-h display with AMjPM indicator or 24-h digital display...

  • Electronic Door Lock Security Key circuit diagram

    2017-01-06 11:07:2863

    This is the circuit diagram electronic door lock security key system. It means that this security system circuit is the combination of pressed key itse...

  • The central control door lock and rear window defroster conn

    2017-01-06 11:05:3960

    Figure: The central control door lock and rear window defroster connection circuit of Santana 2000 (gasoline injection engine)159-central interlock equ...

  • Electronic Locker Guard

    2017-01-06 11:04:3661

    Protect your Locker or Briefcase from theft using this pocket sized gadget. It gives a loud police siren to catch attention.The circuit uses a single I...

  • Digital lock 6

    2017-01-06 10:27:5661

    The digital lock circuit is composed of the power switch SO, power transformer T, bridge rectifier UR, relays Kl, K2, password buttons Sl-Sl2, transist...

  • FAIL_SAFE_INTERLOCK

    2017-01-06 10:20:3661

    Developed for protecting people and equipment at 40-kW RF accelerator station. All interlock switches (air flow, water flow, water pressure, temperatur...

  • TDA9210 integrated block typical application circuit

    2017-01-06 10:11:5663

    2.Pin functions and dataThe TDA7429T can be used in Konka T2168K TV, and the pin functions and data of this deviec is as shown in table 41.Table 41 The...

  • SENSOR_SWITCH_AND_CLOCK

    2017-01-06 10:10:2961

    One TL084 IC and an old quartz watch enable the construction of a deluxe on/off switch. Two of the four op amps contained in the TL084 (A1 and A2) are ...

  • Cheap 40KHz clock

    2017-01-06 09:53:1061

    Use a 40KHz Xtal and a 74C14 schmitt trigger: ________ ---------------- 2.2 M resistor ___| 2M2 |___ | |________| | | | | | | |\ | | | \ | +-----| O---...

  • Blocking Inductive Kickback (with a snubber circuit)

    2017-01-06 09:53:0760

    Java-Runtime is required for Circuit Simulation. Download Java for Windows Download Java for Linux Download Java for Other OS Start Simulation Circuit ...

  • SIMPLE_24_h_CLOCK

    2017-01-06 09:52:0861

    Use of 60-Hz power frequency as time base simplifies design while still giving Iong-term accuracy comparable to that of crystal time base. Four-digit d...

  • Electronic lock with key and generic RFID 125KHz RFID

    2017-01-06 09:45:1860

    The circuit is based on low-cost AtTiny2313 ATMEL microcontroller. It is able to read 125KHz RFID tags. Every tag is read then decoded, and its code is...

  • Digital lock 5

    2017-01-06 09:44:3960

    The digital lock circuit is composed of the input control circuit, reset circuit, counter / divider circuit and control implementation circuit, and it ...

  • 74 series digital circuit of 74LS424 two-phase clock generat

    2017-01-06 09:42:5062

    It is used to drive all 8080A microprocessors and 12V lines; it includes crystal oscillator, a nine-frequency clock phase generator, 2 high-level drive...

  • TDA8350Q integrated block typical application circuit

    2017-01-06 09:19:3565

    TDA6111AQ--Video signal process integrated circuitThe TDA6111AQ is designed as the video signal process integrated circuit which is produced by the PHI...

  • 24 Second Shot Clock

    2017-01-06 09:17:3960

    This is a circuit intended to be used in basketball shot clock.Notes:To start in 24 seconds; 24s LOAD SW and Reset SW should be push simultaneously. If...

  • The Great Wall-Harvard central lock, airbag, ABS, instrument

    2017-01-06 09:16:1660

    The Great Wall-Harvard central lock, airbag, ABS, instruments and lighting system circuit is shown in the figure....

  • LM359 Phase Locked Loop

    2017-01-06 09:14:0260

    Phase-locked loop is very common in telecommunication, control, and other electronic application. PLL can be used to demodulate FM signal, produce a st...

  • Electronic Locker Guard

    2017-01-06 08:56:1061

    Protect your Locker or Briefcase from theft using this pocket sized gadget. It gives a loud police siren to catch attention. The circuit uses a single ...

  • Digital Clock circuit with CMOS 4047

    2017-01-06 08:56:0669

    This circuit provides a digital square wave that can be viewed directly or used to drive other circuits. It used the CMOS 4047 Low-Power Monostable/Ast...

  • digital coded lock circuit with CD4520

    2017-01-06 08:50:4262

    Figure shows the general-purpose digital coded lock circuit formed by the CMOS digital integrated circuit, which is characterized by a wide supply volt...

  • SAUARE_WAVE_CLOCK

    2017-01-06 08:46:1261

    One section of Harris HA-4900/4905 precision quad comparator gives excellent frequency stability as self-starting fixed-frequency square-wave generator...

  • ADUSTABLE_CLOCK_FOR_MPU

    2017-01-06 08:32:4160

    Two MC8602 cross-coupled mono MVBRs with individual pulse-width adjustments are used as clock oscillator to provide frequency flexibility for exnentati...

  • Redundant computing Lockstep systems circuit

    2017-01-06 08:02:5660

    Lockstep systems are redundant computing systems that run the same set of operations at the same time in parallel. The output from lockstep operations ...

  • The simple self-lock switch circuit

    2017-01-06 07:56:3061

    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...

  • The simple power-off self-lock circuit

    2017-01-06 07:48:4761

    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...

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