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  • ELECTRONIC_COMBINATION_LOCK

    2017-01-08 06:05:4661

    When button S12 (#) is pressed, a positive voltage fed through R1 appears at the base of transistor Q1, turning it on. When Q1 is conducting, pin 1 of ...

  • High quality monoblock power amplifier

    2017-01-08 06:01:0061

    This high quality monoblock power amplifier is a good transistor amplifier circuits. And with a simple high quality power amplifier circuit that can pr...

  • 150_MC_CLOCK_GATE_AND_DRIVER

    2017-01-08 05:49:1060

    When gale transistor Q1 (2N2368) is turned on, 200-Mc bandwidth amplifier Q2 is off to provide isolation and permit switching within one cycle of dock....

  • FOUR_PHASE_12_MC_CLOCK

    2017-01-08 05:36:4360

    To minimize litter of synchronizing signals, fundomentcd frequency is chosen at one-eighth of dock rate or 1.5 Mc. Oscillator output is fed through two...

  • MOS_FOUR_GATE_CLOCK

    2017-01-08 05:19:5561

    Only one 4001 CMOS quad two-input NOR-gate 10 is needed for symmetrical complementary-output clock having good temperature and supply stability.Gates U...

  • Cashbox or Locker Alarm

    2017-01-08 04:50:1661

    The locker alarm circuit or cashbox watcher can be used to protect a cashbox/locker from unauthorised access. This tried and tested design forms a fool...

  • Intelligent Electronic Lock(BC547)

    2017-01-08 04:48:2561

    This article briefly describes the Intelligent Electronic Lock (BC547). This principle is easy to understand, but also very practical. Depth understand...

  • The pulse generating circuit composed of phase-lock loop

    2017-01-08 04:43:3962

    The output frequency of the circuit is 10Hz~999kHz, the frequency precision is 3-bit and adjustable. In the circuit, MCl4046B(1) is the phase compara...

  • Shanghai GM Chevrolet(Epica) saloon car anti lock braking sy

    2017-01-08 04:42:1161

    Shanghai GM Chevrolet(Epica) saloon car anti anti lock braking system circuit diagram(three)...

  • Internal Block Circuit Diagram of IC LA445

    2017-01-08 04:41:4564

    LA445 is a dual-channel audio power amplifier integrated circuit produced by Japanese SANYO Electric. It is widely used in home audio device, vehicle a...

  • Electronic safety lock based on ATtiny26 (1N4148)

    2017-01-08 04:22:4861

    This article describes the Electronic safety lock based on ATtiny26 (1N4148). The principle is very simple, very practical. The circuit components can ...

  • TWH9238 Self-locking and interlocked hybrid application circ

    2017-01-08 04:19:5960

    In this circuit, A, B channels are interlocking type output. At the same time, one way plays the controlling role. C, D channels are non-locking output...

  • TMS3450NL Digital Clock Integrated Circuit Diagram

    2017-01-08 04:17:2781

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

  • VRS51L3074 one of electronic clock design circuit diagram

    2017-01-08 04:13:3960

    Circuit description: 1, Using common cathode LED; 2, 74LS48 controls LED to show the number, the triode controls the display LED. It adopts dynamic dis...

  • TDA8844 integrated block internal box circuit

    2017-01-08 04:01:5661

    The TDA7057AQ integrated block internal box circuit is as shown in figure 14-19, this IC is in the single 13-pin package, the pin functions and data is...

  • CLOCK_FOR_MC6800

    2017-01-08 03:23:2862

    Produces nonoverlapping complementary 5-V clock outputs as required for phase 1 and phase 2 clock inputs of microprocessor. Oscillator can be any sourc...

  • Block Occupancy Detector Helper Circuit

    2017-01-08 03:21:2361

    This circuit would be used to hold a BLOCK OCCUPIED condition as a train passes out of the block even if the normal detector is not sensing a train. Th...

  • Timing Circuit Composed Of Quartz Electronic Clock IC

    2017-01-08 03:02:3564

    The pulse signal, which provided from the quartz electronic clock IC, has high accuracy. So it is widely used not just in quartz electronic clock, but ...

  • TDA4661, TDA4661V2 integrated block internal box circuit

    2017-01-08 02:53:5061

    1.Pin functions and dataThe TDA4601 is in the single 9-pin DIP package, the pin functions and data is as shown in table 11.Table 11 TDA4601 TDA4601 pin...

  • the alarm circuit of the blocked seed channel in seeding-mac

    2017-01-08 02:51:3161

    VL and VD are relatively set in the transmit seed tube.The infrared light which is emitted by V2 shines on VD.When seeding,if the transmit seed tube of...

  • CLOCK_PULSE_AMPlJFlER

    2017-01-08 02:45:0360

    Genercates clock pulses for driving all flip-flops in magnetic drum timing channel system, and generates digit square-wave signals used in Manchester c...

  • The simple power-off self-lock circuit

    2017-01-08 02:42:5960

    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...

  • BINARY_CLOCK

    2017-01-08 02:37:0663

    This circuit is an unusual clock in that the LEDs are bi-color red/green displays that indicate the Lime in binary coded decimal form.LEDs 21 through 2...

  • consisting of TWH8751 lock control anti-theft alarm circuit

    2017-01-08 02:26:2962

    Figure shows the lock control anti-theft alarm circuit. The circuit consists of RS flip-flop, gated oscillator, the alarm circuit and so on.RS flip-flo...

  • 800_Hz_CLOCK_FOR_CASSETTE_RECORDER

    2017-01-08 02:14:4660

    565 PLLis set for free-running at 800 Hz with no input. When data pulses extracted from FSK recorded data on cassette tape are fed in,clock is synchron...

  • TDA9302H integrated block internal box circuit

    2017-01-08 02:14:1860

    TDA7481--Left and right Lu-channel audio power amplifier circuitThe TDA7481 is designed as one kind of left and right Lu-channel audio power amplifier ...

  • QUAD_BLOCK

    2017-01-08 02:04:4460

    With appropriate interconnections of external terminals, can be used either as binary counter, monostable mvbr, Schmitt trigger, or selector. Although ...

  • planter fertilization tube blockage alarm

    2017-01-08 01:58:1261

    This example describes the planter fertilization tube blockage alarm,which can send the sound and light alarm signal to alert the staff to process time...

  • The 8-line inter-lock e-switch

    2017-01-08 01:37:5760

    The working principle of the circuit This 8-line inter-lock e-switch circuit consists of the regulated filter circuit, input control circuit, lock stor...

  • The clock circuit diagram for racing

    2017-01-08 01:34:5161

    The chart shows the clock for the competition, which is assembled with 555 circuit, with the features of novel circuit, reliable performance, easy maki...

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