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  • SEGMENTED_SWEEP_DISPLAY

    2016-12-02 09:31:5762

    Staircase voltage builds up across C2 when pulses from Q2 turn Q3 on momentarily. R3 controls voltage amplitude of each step. R1 controls rate of free-...

  • 400000_RPM_TACHOMETER_DISPLAY

    2016-12-02 09:09:4162

    Has five Dekatron tubes arranged in cascade. Negative-going pulses from plate of gating tube are fed to 30-microsec one-shot mvbr V 10. Tetrode thyratr...

  • Calendar and clock display interface circuit

    2016-12-02 08:30:2760

    As shown in figure,this display interface is composed of EEPROM24C256 and calendar clock chip PCF8563.24C256 is a low voltage, serial interface and 256...

  • CH52010 Display Control Micro-Computer Integrated Circuit

    2016-12-02 07:51:4160

    The CH52010 is a display control micro-computer IC which is widely used in Changhong series VCD players and so on.1.Its functional features.The CH52010...

  • The schematic diagram of LCD digital displayer construction

    2016-12-02 03:51:0565

    LCD displayer is also called LCD digital displayer, whose construction is shown in the figure. The main material of LCD displayer is liquid crystal(abb...

  • Rolling Circle Motive Display Circuit Composed of CD4017

    2016-12-01 23:31:3961

    As seen in the figure, because of CD4017's output trait thatone of its10 output terminals will output high level while the other nine terminals all out...

  • BEAT_FREQUENCY_DISPLAY

    2016-12-01 22:49:5362

    Apparent rotation of dot on four-LED display gives indication of beat frequency between ttnro tone oscillators.When F1 is greater than F2, dot rotates ...

  • Invention History of Liquid Crystal Display (LCD)

    2016-12-01 20:31:2661

    The history and development of the Liquid Crystal Display (LCD) is rather complex. The story of the LCD had an unusual beginning by an Austrian botanis...

  • MULTIPLEXED_COMMON_CATHODE_LED_DISPLAY_ADC

    2016-12-01 20:19:0462

    Here, a Teledyne TSC7135 DVM chip is used to drive a multiplexed 5-digit display. A CD4513BE CMOS IC, for common cathode drive, is used as a segment dr...

  • The caller number display device circuit

    2016-12-01 19:12:0260

    The device works with the phones that haven't got the functions of display, which can display caller number so that people can check if the called numb...

  • Radio Digit-Type Frequency Display (C040,556) Circuit Diagra

    2016-12-01 17:48:2560

    The above picture is radio digit-type frequency circuit diagram. The circuit is double time based circuit 556(IC1), BCD-code three-digit counter IC2(MC...

  • 4511B_COMMON_ANODE_DISPLAY_DRIVER

    2016-12-01 15:39:2260

    The use of a switching transistor (like a 2N2222 or 2N3904) allows use of the CD4511B with a common-anode display. Ry should be chosen to provide about...

  • Liquid Crystal Displays (LCD)

    2016-12-01 13:41:3360

    We always use devices made up of Liquid Crystal Displays (LCDs) like computers, digital watches and also DVD and CD players. They have become very comm...

  • PIC16F873 remote display (AC100V)

    2016-12-01 13:13:4561

    This article describes the PIC16F873 remote display (AC100V). The content is very simple, very helpful. Components in this article can help you underst...

  • HI_L0_LED_FREQUENCY_DISPLAY

    2016-12-01 13:12:5366

    Apparent rotation of flashing LEDs around square indicates whether input frequency is above or below reference frequency. Input and reference waveforms...

  • The 8-bit LED dynamic display circuit of ICM7218A

    2016-12-01 13:08:5160

    The 8-bit LED dynamic display circuit of ICM7218AIn the figure is the 8-bit LED hardware scanning dynamic displayer consisting of 8031 and ICM7218A. As...

  • Led display digital Voltmeter

    2016-12-01 12:23:4460

    This is an easy to build, but nevertheless very accurate and useful digital voltmeter. It has been designed as a panel meter and can be used in DC powe...

  • Audio Power Indicating Circuit Using Five-digit LED Display(

    2016-12-01 11:07:5561

    The picture shows the audio powerindicating circuit which uses five-digit LED display. The circuit consists of level meter driver FD502 and five-digit ...

  • MOVING_LIGHT_DISPLAY

    2016-12-01 10:02:5864

    Computer-controlled blinking of LEDs arranged in circle or other pattern gives illusion of motion. One section of quad 7475 latch is assigned to each o...

  • GPS LCD Display Project (16F84)

    2016-12-01 08:11:1469

    This article describes the GPS LCD Display Project (16F84). The principle is very simple, very practical. The circuit components can help you understan...

  • DIGITAL_LEVELS_SCOPE_DISPLAYS_2_LOGIC_SIGNALS_ON_1_SCOPE

    2016-12-01 08:02:4260

    Using this simple resistor circuit, you can trick your oscilloscope into displaying two logic signals on one channel. If you select R2 to be twice R1, ...

  • Points, line overflow LED display circuit with LM3914

    2016-12-01 06:05:5160

    This circuit is in point working mode when it has no overflowing. When it is overflowing, LED changes into line display mode, thus indicating the overf...

  • The week digit displayer circuit

    2016-12-01 05:12:2360

    The week digit display circuitThe circuit of the week digit display circuit is in the figure, of which IC1 is a decimal counter/distributor, IC2 is a s...

  • TRICOLOR_LED_SIGN_DISPLAY

    2016-12-01 03:55:2661

    The purpose of this circuit is to light three-terminal LEDs in sequence on a small sign for a model railroad. Capacitor C2 is connected to the resets o...

  • digital voltmeter with LED display (ICL7107)

    2016-12-01 02:15:1760

    This is a design circuit for digital voltmeter with LED display. Itas ideal to use for measuring the output voltage of your DC power supply. It include...

  • KEYBOARD_ENTRY_WITH_4_1_2_DIGIT_DISPLAY

    2016-12-01 02:04:2261

    Developed to give keyboard entry of desired frequency for 2-meter frequency as alternative to thumbwhee-switch setting of frequenoy, When key is depres...

  • Samsung SAMSANG5508/7508 type color display switching power

    2016-12-01 01:40:0861

    Here is the schematic diagram of the Samsung SAMSANG5508/7508 type color display switching power supply (DPl04P)circuit:...

  • Display Equipped Radio Pager Circuit

    2016-12-01 01:09:5562

    A display-equipped radio pager according to the present invention provides a detecting circuit 6 to detect keywords which are distinguished by a specif...

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