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  • The clock timing principle circuit

    2017-01-07 02:06:5560

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

  • PLL-Phase Locked Loops

    2017-01-07 01:50:5361

    Introduction to PLL or Phase Locked Loops Phase-locked loop is a feedback loop consisting of a phase detector, a low-pass filter, amplifier (optional) ...

  • The block diagram composed of AICl783

    2017-01-07 01:38:2761

    AICl783 is the ni-mh/nickel-cadmium battery quick charger control IC which is produced by Analog integrated company. Its structure frame as shown...

  • SYNCHRONIZING_33_MC_CLOCK_TO_300_PPS_TRIGGER

    2017-01-07 01:13:1160

    Synchronizes crystal-controlled tran of of 3.3-Mc clock pulses to unrelaled sync trigger having nominal repetition rate of 300 pulses per second, to pr...

  • HUM_BLOCKING_OPTOISOLATOR

    2017-01-07 01:05:5061

    Optoelectronic isolator for audio feed in TV set prevents circulation of ground currents at line frequency, for protection of low-level signal runs fro...

  • freezer and cooling pump interlock control circuit

    2017-01-07 00:56:5760

    The freezer and cooling pump interlock control circuit is as shown. It can be started through starting frozen pump, cooling pump and opening the freeze...

  • TDA16846 integrated block typical application circuit

    2017-01-07 00:36:5965

    TDA7088T--Electric tuning single chip FM radio ICThe TDA7088T is designed for the top-grade thin micro-radio which is produced by the PHILIPS company. ...

  • Ten blocks frequency signal generator(CD4011、CD4017)

    2017-01-07 00:32:4061

    Usually, we use the general-purpose frequency signal generator which is designed as the entire frequency range with a continuous adjustment approach. H...

  • TDA4665/4665T integrated block internal box circuit and Haie

    2017-01-07 00:31:2560

    2.Pin functions and dataThe switching power supply with the operating frequency of 500khz is composed of the TDA4605 and the FET switch tube, so the sw...

  • TDA8178F integrated block typical application circuit

    2017-01-07 00:26:4361

    TDA611OQ--Video amplification circuitThe TDA611OQ is designed as the Video amplification circuit which is produced by the PHILIPS company, and it can b...

  • FM_IF_gain_block_shown_connected_to_typical_FM_receiver_circ

    2017-01-07 00:23:1061

    FM IF gain block shown connected to typical FM receiver circuitry. The IF amplifier and detector chip can be an ECG708, for example (courtesy GTE Sylva...

  • Electronic Locker Circuit Schematic Picture

    2017-01-07 00:03:2261

    All the adapted numbers of the cipher are in the aforementioned line. To set the adjustment of the cardinal of the code, we accept to set the acceptabl...

  • The remote control lock alarm(TH151A/B, the vibration sensor

    2017-01-06 23:48:4661

    This circuit consists of the burglarproof host, door magnet trigger switch, vibration sensing switch, electric control lock with keys, battery that doe...

  • Digital lock 8

    2017-01-06 23:43:5160

    The digital lock circuit is composed of the password input control circuit and control implementation circuit, and it is shown in Figure 3-105. Passwor...

  • Digital clock

    2017-01-06 23:25:1564

    Circuit diagram Digital clock circuit This Clock/Calendar Circuit BoardDesign uses a 161 LCD Display with 4-bits interface. This circuit design is capa...

  • the alarm circuit for blocked fertilization tube of the seed

    2017-01-06 23:23:1660

    When you plant the crops and fertilize them,the liquid fertilizer in the fertilization storage tank goes to the ditching tube through the metal tube 2 ...

  • Inner Circuit Block Plan and Signal Flow Direction Circuit o

    2017-01-06 23:00:0162

    ...

  • The switching circuit 1 with self-locking ( self-maintaining

    2017-01-06 22:58:5263

    The 3 optical couplers in Figure respectively play the role of the trigger, self-locking and switching. When a start trigger signal is applied to the G...

  • ELECTRONIC_LOCK

    2017-01-06 22:24:3360

    Correct combination of switches S1-S5 must be actuated to energize relay in series with ignition switch of auto or any other type of electric lock. If ...

  • PLL Lock Detection

    2017-01-06 22:20:2963

    In some PLL application, sometimes we need to provide lock indication when the PLL is in locked state. The simplest one is binary indication, 0 or 1 to...

  • 60_Hz_GLITCH_FREE_CLOCK

    2017-01-06 22:17:3861

    Circuit generates complementary gated 60-Hz dock pulses that are always wider than 2 μs, without glitches even if gate is enabled or disabled during c...

  • CD4520 digital coded lock circuit

    2017-01-06 22:05:1560

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

  • INDUCTIVE_TRANSI_STOR_SYNC_LOCK

    2017-01-06 21:42:0360

    D-c bias of inductive-reactance transistor Q2 is controlled by modulating voltage from oscillator Q1.-Y. Fujimura and N. Mil, Automatic Frequency Contr...

  • New Product: Tapping Block

    2017-01-06 21:41:0361

    We're proud to release our first home-grown product: a tapping block. If you're not familiar with tapping (cutting screw threads), the hardest and most...

  • AUT0_CLOCK

    2017-01-06 21:32:0761

    National MM5377 chip for au-tomobile dock interfaces directly with 4-digit Iiquid-crystal or fluorescent-tube display. 12-h format indudes Ieading-zero...

  • Beam Blocking Alarm Circuit

    2017-01-06 21:23:2960

    As shown in the figure, when the photosensitive resistor R4 is irradiated, the resistance is low, thus, transistor VT1 and one-way thyristor SCR are cl...

  • Four Interlock Switch Controller(CD4028) Circuit

    2017-01-06 21:19:5363

    The four interlock switch controller circuit shown in the picture uses one decimal docoder integrated circuit CD4028 with four BCD code input terminals...

  • An electronic code lock circuit

    2017-01-06 21:15:5561

    The article describes an electronic code lock circuit. The circuit is very simple, very helpful. This circuit is very basic to build. Opening a lock wi...

  • TIDE_CLOCK

    2017-01-06 21:11:2261

    Circuit shuts off electric clock of any type for 5 s out of every 144 s, to give loss of 50 min in 24 h as required for making high tides conform to cl...

  • SAMPLING_RATE_PHASE_LOCK

    2017-01-06 21:10:5661

    Most digital scopes have record lengths that are power of 2 (e.g., 1024 points) and sampling rates constrained to a 1-2-5 sequence. This can lead to me...

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