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  • Mains operated LED night lamp

    2016-08-14 12:57:4370

    Description. Here is a simple and powerful LED based night lamp circuit that can be operated directly from the 230V mains supply. The are total 24 whit...

  • Line lamp transformer checking current transformer circuit

    2016-08-14 12:51:1466

    10% error qualification of the current transformer has a direct impact on power system relay protection. If it is failed, it will cause current protect...

  • NEGATIVE_LOGIC_LAMP_DRIVER

    2016-08-14 12:15:0863

    Uses one scr and only five components per lamp, to switch lamps rapidly, without relays or ex costive loading of control source. Positive test signal a...

  • AC Lamp dimmer

    2016-08-14 11:56:4990

    A full range power controller suitable for lamp dimming and similar applications operate from a 120 volt, 60 Hz ac source, and can control up to 1000 w...

  • Automatic Night Lamp with Morning Alarm

    2016-08-14 11:00:2869

    This circuit automatically turns on a night lamp when bedroom light is switched off. The lamp remains ON until the light sensor senses daylight in the ...

  • The gas overranging alarm miner lamp 4

    2016-08-14 10:49:5564

    The working principle: The gas overranging alarm miner lamp circuit is composed of gas detection circuit, multivibrator, audio output circuit and light...

  • Five flash lamp string circuit (4)

    2016-08-14 10:29:4667

    In the graph, SSR1 to SSR5 use TAC081 IC type solid state relay. T uses 220V / 6V, 5VA small quality requirements of power transformers. Itrequires pow...

  • Eye-care Lamps (the 4th)

    2016-08-14 09:17:5964

    Work of the circuitThe circuit consists of power switch S, rectifier diode V1-V4, resistor R1-R3, light-sensitive diode VD5 and light EL (It is showed ...

  • 230 Volts Flashing Lamps (P0102D)

    2016-08-14 08:51:1962

    This article describes the 230 Volts Flashing Lamps (P0102D). The content is very simple, very helpful. Components in this article can help you underst...

  • Electronic energy saving lamp (1)

    2016-08-14 08:31:1964

    VT1, VT2 choice MTE13003 ~ 13005 high-power tube, and β value is between 20 to 40. T1, T2 need to be made by yourself: the three coils of T1 are avail...

  • WT8089 16 kinds of colored lamp patterns with eight pieces o

    2016-08-14 08:07:5761

    The circuit is as shown. This circuit is composed as the core of WT8089, when it is playing a pretty electronic music, it can produce 16 kinds of diffe...

  • The infrared lamp controller circuit

    2016-08-14 07:26:4764

    The infrared lamp controller is equipped with a heat releasing infrared sensor as the human body sensor, which can make the lamp controller fulfill fun...

  • FM_stereo_demodulator_with_indicator_lamp_using_an_ECG1106_1

    2016-08-14 07:02:0171

    FM stereo demodulator with indicator lamp using an ECG1106 16-pin DIP.Input impedance is 20K,The indicator lamp operates at a 19 kHz input level of 5 m...

  • The automobile lighting lamp lifespan prolonging protector (

    2016-08-14 07:01:0964

    When the car or motorcycle lamp is impacted by the pulse current when it is in the cold state, it is easy to break. Here is to introduce the automobile...

  • Simple light-operated street lamp circuit diagram(5)

    2016-08-14 06:55:5073

    The chart shows the simple light-operated street lamp circuit which is made by two-way thyristor, and it consists of three major componentsof thyristor...

  • Electronic Lamp Dimmer circuit

    2016-08-14 06:51:0370

    This electronic lighting dimmer circuit is used to control the lamp for arbitrary brightness. This electronic lamp dimmer circuit work for incandescent...

  • Low_voltage_lamp_flasher_using_a_PUT_and_two_SCRs

    2016-08-14 06:46:0263

    Low-voltage lamp flasher using a PUT and two SCRs. C4 is a nonpolarized type capacitor (courtesy Motorola Semiconductor Products Inc.)....

  • The brake lamp and loudspeaker circuit of Santana 2000

    2016-08-14 06:39:4066

    Figure: The brake lamp and loudspeaker circuit of Santana 2000 (gasoline injection engine)68-brake linked switch; 69-brake signal lamp(left); 69a-brake...

  • The 555 time delay energy-saving lamp circuit

    2016-08-14 06:06:0073

    In the circuit is the 555 time delay energy-saving lamp circuit, which can be used at the stair exit and corridor. By pressing S1, the relay K is condu...

  • The ceiling lamp control switch circuit (6)

    2016-08-14 05:59:5162

    The ceiling lamp control switch circuit consists of the power supply circuit and the control circuit, see as the figure.Element selection R1 is the 1/2...

  • Light Control Street Lamp Circuit Using ne555

    2016-08-14 04:44:2263

    As shown this circuit is specially designed. The light control switch and the electrical networks are connected by the two-wire connected method. It ca...

  • How to build Sunrise Lamp

    2016-08-14 04:41:3765

    Circuit diagram In this circuit, a 120VAC lamp is slowly illuminated over a approximate 20 minute period. The bridge rectifier supplies 120 DC to the M...

  • Amplifier lamp exposure circuit

    2016-08-14 04:34:1262

    Potentiometer R1 is used to adjust automatic timing exposure of amplifier lamp, to this amplifier lamp which has 500W maximum power, the adjustable aut...

  • SUMMING_AMPLIFIER_CLAMPING_CIRCUIT

    2016-08-14 04:14:2361

    This circuit is a traditional summing amplifier configuration with the addition of the dc clamping circuit The operation is quite simple; each componen...

  • How to build Bedside Lamp Timer

    2016-08-14 04:09:4667

    30 minutes operation Blinking LED signals 6 last minutes before turn-off Circuit diagram Parts: R1 1K 1/4W ResistorR2 4K7 1/4W ResistorR3 10M 1/4W Resi...

  • Multifunction dimming desk lamp circuit ( HT7706 )

    2016-08-14 03:55:1063

    As shown in figure, it is a multifunctional dimming desk lamp circuit, it increases a photometric circuit, and it is very suitable for reading and writ...

  • CMOS_LOGIC_CONTROL_OF_300_W_LAMP

    2016-08-14 03:21:0862

    Storage capacitor C2 in interface transistor circuit for typical CMOS gate charges to full +15 V supply voltage in time determined by R3 and C2, after ...

  • Ozone Box or Xeon lamp weather resistance test chamber

    2016-08-14 03:19:4765

    Ozone box specificationType (CM)QL-100 QL-250 QL-500 QL-010Size of workroom: :45*45*50 50*60*75 70*80*90 100*100*100Measurement: 115*90*165 120*110*190...

  • Lamp-life-extender

    2016-08-14 03:12:3864

    Lamp life can be extended by improving the conditions under which its filament is operated. This includes eliminating the inrush overcurrent surge and ...

  • Varying Brightness AC Lamp

    2016-08-14 01:43:1775

    Varying Brightness AC Lamp In this circuit, the SCR is required to be able to slowly range the intensity of an 120 volt lamp through managing plenty of...

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