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  • 1.5 volt dual LED flasher (runs one year)

    2017-02-01 09:59:3465

    This 1.5 volt led fasher runs more than a year on a single 'd cell and alternately flashes 2 LEDs at about a 1 second rate. The circuit employs a 74HC1...

  • FLASH_MEMORY_PROGRAMMER

    2017-02-01 09:52:1360

    Generating 12V from a 5-V supply for flash memory usually requires a switching regulator and inductor to produce the necessary 30-rnA byte-wide flash. ...

  • Micro Flasher

    2017-02-01 09:41:5561

    Description. This micro flasher circuit continuously emits flashing light with the consumption of very less power.The circuit can run for a very long t...

  • Basic Flash Memory Programming Voltage Supply (LT1072)

    2017-02-01 09:24:2564

    This article describes the Basic Flash Memory Programming Voltage Supply (LT1072). The principle is very simple, very practical. The circuit components...

  • Photoflash Circuit

    2017-02-01 09:14:4064

    The photoflash circuit is showed as above.The seagulls SD - 150 type studio flash combines formative light and photography intense light source also ac...

  • The camera affiliated flash device circuit

    2017-02-01 08:22:1461

    In the circuit, the light sensitive tube and ordinary SCR compose the light switch, the sensibility is increased, and the action is stable. In the dott...

  • LASER_FLASH_TUBE_SUPPLY

    2017-02-01 08:14:0161

    Variable pulse forming network sends rectangular pulses of current through lash tube when network is discharged by ignitron used as switch. Resulting p...

  • Flashing Heart circuit diagram

    2017-02-01 07:56:1861

    This isLED flashing circuit, the circuit is quite simple. Alternatively, you could be create another shape, not just heart shape. Schematic diagram: Co...

  • SCR relaxation flasher

    2017-02-01 07:37:4762

    Flashing occurs each time the capacitor discharges through the tumed-on SCR. When the discharge current falls below the SCR holding current, the SCR tu...

  • Remote flash trigger

    2017-02-01 07:32:5262

    Transistor Ql is a light-activated silicon-controlled rectifier (LASCR). The gate is tripped by light entering a small iens built into the top cap.To o...

  • Flashing LED circuit for monitoring remote power resource vo

    2017-02-01 07:31:1761

    This circuit uses LM3909 flasher integrated circuit produced by National Company to drive LED for monitoring the voltage of remote power resource. When...

  • FLASH_ACTUATED_SCR_DELAY

    2017-02-01 07:06:3562

    Fractional-cycle light pulse fires glass-window scr at any phase angle, while values of circuit components determine number of cycles of conduction bef...

  • Dual LED alternate flasher circuit diagram

    2017-02-01 06:53:5765

    The chart shows the dual LED alternate flasher circuit diagram. It is an interesting two alternately flashing circuit only composed of four elements. V...

  • Four-way flashing light string circuit ( 1 )

    2017-02-01 06:28:5261

    The circuitshown in the chart is the 4-wayflashing lights string controllerwhich uses a solid relay anddigital and other components, and the output pow...

  • 15_volt_LED_flasher_using_an_LM3909

    2017-02-01 06:10:2760

    1.5-volt LED flasher using an LM3909. Flashing rate is about 1 hertz. Circuitry inside dashed lines is the LM3909 (courtesy National Semiconductor Corp...

  • 5G0401 acoustic synchronous flash with disco drum music circ

    2017-02-01 05:58:4660

    Circuit shown in Figure, which includes voice-activated flash circuit, drum music sound circuit and audio amplifier circuit and buck rectifier circuit....

  • Dual-way flashing light string circuit with music (MC81P)

    2017-02-01 05:35:5560

    As shown in the figure, it is a novel flashing light string controller for Christmas tree decorations, it has two-way flashing output with storing 6 so...

  • Flashing Light with Triacs

    2017-02-01 05:24:3461

    This flashing light circuit uses triacs to generate an intermittent light with variable frequency. Additional components are the D1 diode and semi adju...

  • LED Flasher with LM3909

    2017-02-01 04:58:0767

    This is a very easy and simple LED flasher with only three components: a flasher IC LM3909, a LED indicator and an electrolytic capacitor. The supply v...

  • 555 Door Ajar Flasher

    2017-02-01 04:54:3561

    How it worksThe flasher is the standard 555 oscillator circuit that drives an ultrabright white LED for daylight visibility. Repetition rate is about 2...

  • Automobile Steering Flasher (3)

    2017-02-01 04:52:5361

    When S is disconnected, V is disconnected. IC's pin 1 and pin 3 will output high level while the oscillator doesn't work. When S is connected, V is con...

  • DUAL_LED_CMOS_FLASHER

    2017-02-01 04:10:1560

    Circuit NotesInverters ICl-a and ICl-b form a multivi-brator and IC1-c is a buffer. Inverter IC1-d is connected so that its output is opposite that of ...

  • Rotating & Flashing 230V Lights

    2017-02-01 04:00:4862

    This design can be of some interest for those wanting striking light signs, as it can drive up to three 230V lamp strings in three operating modes.The ...

  • The camera flashlight circuit

    2017-02-01 03:38:5363

    The camera flashlight circuit when K1 is put through, the self-motivation oscillator composing of BG1, C1, B1 and R1 is starting to work, after being b...

  • Brake Flash Light

    2017-02-01 03:21:3662

    When the oscillator begins to work, 300V high-frequency pulse voltage will be generated on W3. The voltage will be divided into four circuits after rec...

  • EEPROM/FLASH Memory Organization in PIC 16F877

    2017-02-01 02:57:2161

    Take a look at the previous articles. TAKE A LOOK : INTRODUCTION TO PIC 167F877 TAKE A LOOK : PIC 16F877 ARCHITECTURE AND MEMORY ORGANIZATION TAKE A LO...

  • MODEL_RAILROAD_CROSSING_FLASHER

    2017-02-01 02:43:4966

    Gate U1-c is set up as an oscillator whose frequency is determined by C1 and R1. Gates U1-b and U1-d are set up as an RS flip-flop that is gated on by ...

  • Sequenced flashing AC flash

    2017-02-01 02:21:0161

    This circuit uses a simple circular counter. The control ports of triac form a part of load. And the three incandescent lamps brighten up in turn and u...

  • Simple flashing light circuit with the thyristor

    2017-02-01 02:18:1564

    The MPU131 is designed as one kind of program-controlled thyristor that can be used in the relaxation oscillator circuit which is composed of the R1 an...

  • ELECTRONIC_LIGHT_FLASHER

    2017-02-01 02:12:0160

    The blinking or flashing rate is determined by U1, a 555 timer integrated circuit. Its output, at pin 3, feeds U2, a HIIJ triac driver. That driver con...

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