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  • Dc lamp dimmer

    2016-08-07 23:48:2065

    A low power, low cost dc lamp dimmer for a two-wire portable `flashlight` can be realized with little or no heatsinking. In addition, a single potentio...

  • Double-key touching lamp switch circuit (2)

    2016-08-07 23:38:0961

    As shown in the figure, it is a double-key touching lamp switch circuit compoased of homemade optocoupler and thyristor rectifier circuit. V1 ~ V3can u...

  • Remote_control_for_lamp_or_appliance_using_a_reed_switch_and

    2016-08-07 23:24:3160

    Remote control for lamp or appliance using a reed switch and coil. The circuit will handle up to 500 watts (courtesy General Electric Company)....

  • Electronic Pest Killing Lamp (1)

    2016-08-07 22:28:0760

    In the daytime, IC's 6 pin has a high level, 3's pin has a low level and VF1 is disconnected. The whole circuit doesn't work. In the evening, IC1's 2 p...

  • Sound-Activated Lamp (HEP802)

    2016-08-07 22:18:4590

    This article briefly describes the Sound-Activated Lamp (HEP802). This principle is easy to understand, but also very practical. Depth understanding of...

  • Bedside Lamp Timer

    2016-08-07 21:48:1861

    30 minutes operation Blinking LED signals 6 last minutes before turn-off Circuit diagram Parts: R1 1K 1/4W Resistor R2 4K7 1/4W Resistor R3 10M 1/4W Re...

  • Low current consumption lamp flasher

    2016-08-07 21:45:1560

    The circuit is economical in components, and will work with virtually any transistors and is reliably self-starting. The voltage Vb can be taken from a...

  • 12 Volt Automatic Lamp Fader

    2016-08-07 21:43:1762

    12 Volt Automatic Lamp Fader This circuit is agnate to the "Fading Red Eyes" ambit (in the LED section) acclimated to achromatize a brace of red LEDs. ...

  • 73 MHz Hallogene Lamp Radio-Controlled

    2016-08-07 21:22:4562

    This circuit is a 73 MHz Hallogene Lamp Radio-Controlled. The purpose of it is to control the power state of a hallogene lamp by a remote control. When...

  • Touching delay lamp switch circuit(4)

    2016-08-07 21:05:3361

    The chart shows the touching delay lamp switch circuit with two-wire connection, which is characterized by: the circuit design is reasonable, the indiv...

  • Voice controlling lamp (FC52) circuit

    2016-08-07 20:27:1264

    The diagram is voice controlling lamp circuit. This circuit consists of operational amplifier FC52, bi-stable flip-flop, relay J, piezoelectric crystal...

  • Lamp flasher using LM395

    2016-08-07 19:58:2061

    Description. This powerful lamp flasher circuit is ideal for use in automobiles. The circuit is based on IC LM395 (also known as super transistor) whic...

  • Practical delay lamp circuit (3)

    2016-08-07 18:52:4661

    As the diagram shows, it is a delay light controllor with good performance. The connection betweenthe controller and the lamp is two wire type. The ins...

  • AUDIO_CONTROLLED_LAMP

    2016-08-07 18:25:4860

    This is an on-off control with isolated, low voltage input. Since the switching action is very rapid, compared with the response time of the lamp and t...

  • Two-wire Lamp Flasher (BD139)

    2016-08-07 18:13:5363

    This article describes the Two-wire Lamp Flasher (BD139). The content is very simple, very helpful. Components in this article can help you understand ...

  • Jetta front and rear fog lamp circuit

    2016-08-07 17:20:3060

    E23-Front and rear fog lamp switchK13-Rear fog lamp indicatorL40-Front, rear fog lamp switchJ5-Fog light relayL20-Rear fog lampL22-Left front fog lampL...

  • TWO_LAMP_STROBE_BOOSTS_FLASH_RATE

    2016-08-07 15:43:1261

    Two discharge tubes provide shared cycle of operation, to boost stroboscope firing rate to 1,000 flashes per second. tamp circuit, with range-switched ...

  • Halogen Lamp Dimmer With Soft Start(BUK553-60A)

    2016-08-07 15:01:4394

    This article describes the Halogen Lamp Dimmer With Soft Start (BUK553-60A). The principle is very simple, very practical. The circuit components can h...

  • Automatic 12 Volt Lamp Fader

    2016-08-07 14:54:3260

    This circuit is similar to the Fading Red Eyes circuit (in the LED section) used to fade a pair of red LEDs. In this version, the lamps are faded by va...

  • LAMP_READOUT_INVERSION

    2016-08-07 14:30:1460

    Used if lamp output is required with switch open, or if two lamp outputs ore required (one lamp coming on for switch open and the other for switch clos...

  • The gas limiting alarm mining lamp circuit diagram 3

    2016-08-07 13:10:0462

    The gas limiting alarm miner's lamp circuit is composed of the gas detection circuit, electronic switch circuit and audio alarm circuit, and the circui...

  • USB Lamp circuit

    2016-08-07 12:50:4362

    Here is a simple USB lamp powered from the USB socket of PC. It uses 5mm high bright White LEDs to give ample light to work in the Keyboard if the room...

  • Ringers and Clampers

    2016-08-07 12:46:3862

    Ringers Ringing , in the world of pulses, is the usually unwanted oscillation when a level changes suddenly. The frequency of these oscillations is usu...

  • Simple light-operated street lamp circuit diagram(2)

    2016-08-07 11:34:1260

    The chart shows the simple light-operated street lamp circuit, which is simple, easy to use. The current flowing lamp is the full-wave AC current, so t...

  • Low voltage lamp flasher

    2016-08-07 11:30:2962

    The circuit is composed of a relaxation oscillator formed by Q1 and an SCR flip-flop formed by Q2 and Q3. With the supply voltage applied to the circui...

  • PREHEATING_PROGRAMMED_LAMPS

    2016-08-07 11:10:0460

    Minimizes thermal stresses on lamps and controls when programmed operation is repetitive for large number of cycles. Ujt control circuit provides prehe...

  • Dome Lamp Dimmer

    2016-08-07 10:52:4761

    There are times when a little light inside the car would greatly assist one of the passengers but the dome light is too bright for safe driving. The di...

  • 8_W_FLUORESCENT_LAMP_INVERTER

    2016-08-07 09:08:3162

    This circuit has been designed to drive an 8-W fluorescent lamp from a 12-V source using an inexpen-sive inverter based on the ZTX652 transistor. The i...

  • Gated automatic lamp circuit (3)

    2016-08-07 09:05:3560

    As shown in figure, the gated automatic light uses an ordinary music doorbell chip skillfully, it has the following main functions: ① When you return...

  • 555 new high frequency fluorescent lamp circuit

    2016-08-07 08:29:4865

    As the figure 17-21 shows, the high-frequency fluorescent lamp circuit is composed of the step-down rectifier circuit, the high-frequency oscillator ci...

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