LED and Light Circuit

Six-way flashing light string circuit (2) (HFC3040)

Published:2012/9/5 22:43:00 Author:Ecco | Keyword: Six-way, flashing light string

In the figure, LED1, LED2can be usedforboth power indicator and regulator,and itcan choose a common Φ5mm red light-emitting diode. VT7 ~ VT12select MCR100- 8 small plastic one-way thyristor (1A/600V).   (View)

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Gated automatic lamp circuit (2)

Published:2012/9/5 22:40:00 Author:Ecco | Keyword: Gated , automatic lamp

As shown in the figure, itis a gated auto light circuitwith digital integrated circuits, and it mainly consists of the door and window sensors, CD4093 digital integrated circuit, solid state relay, power supply circuit and other components. K can use JAG-4H reed pipe, small magnets should choose the small magnetic steelwith strong magnetism.   (View)

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Gated automatic lamp circuit (3)

Published:2012/9/5 22:37:00 Author:Ecco | Keyword: Gated automatic lamp

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 home at night and open the door, the lights can be automatically lit with 20s, so it avoid trouble from looking for light switch in the dark; ② During the day, switch is automatically blocked, and closing door won't light the lamp; ③ The wiring is simple, it can be directly connected in parallel at both ends of the light switch, then this lamp has gated and light control functions.   (View)

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Neon bulb triggered Triac dimming light circuit

Published:2012/9/5 22:31:00 Author:Ecco | Keyword: Neon bulb , triggered , Triac dimming light

Neon bulb triggered Triac dimming light circuit is shown as the figure, and V is the Neon bulb.   (View)

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Seven-way flashing light string circuit ( CS71017 )

Published:2012/9/5 22:17:00 Author:Ecco | Keyword: Seven-way , flashing light string

Its flashing mode can be freely programmed. The core device is seven programmable flash integrated circuit CS71017. iN The figure, VTH1 ~ VTH7 shoulduse MAC94A4 small plastic TRIAC with smaller trigger current.   (View)

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Three-way flashing light string circuit ( 2 ) ( LP167 )

Published:2012/9/5 22:14:00 Author:Ecco | Keyword: Three-way , flashing light string

As shown in the figure, it is the three-way flashing light string controller with novel light control integrated circuit LP167. LP167 is the audio voltage controlled ASIC with DIP-8 package, and it integrates the audio rectification amplifier, voltage-controlled oscillator, three-bit ring timing and counting distributor and three open-drain follower.   (View)

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Dimming and timing dual - use table lamp circuit

Published:2012/9/5 22:09:00 Author:Ecco | Keyword: Dimming , timing , dual - use, table lamp

As shown in figure, the table lamp circuit can be used for stepless dimming, it also has a timing turn-off function, it is composed of delay circuit and transistor dimming circuit.   (View)

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Multi-color advertising light box with music audible circuit ( 2 )

Published:2012/9/5 22:03:00 Author:Ecco | Keyword: Multi-color, advertising light box , music audible circuit

As shown in the figure, it consists of time-base pulse oscillator, counting / pulse distribution circuit, SCR drive lamp circuit and AC buck rectifier circuit. It enables advertising light box to make multi-color changes with red, green and blue, also accompanied by melodious songs play in order to attract more pedestrians and tourists. F1, F2, F3 are three gates of the six NOT gate integrated circuit CD4069; F1, F2, R2 and C3, etc. form a self-excited multivibrator and its oscillation frequency is: The oscillation frequency of the icon parameteris 0.088 ~ 0.97Hz ( corresponding periodis about 1 to 11.4s ).   (View)

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Multifunction dimming desk lamp circuit ( HT7706 )

Published:2012/9/5 21:46:00 Author:Ecco | Keyword: Multifunction, dimming , desk lamp

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 writing.   (View)

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Three-way flashing light string circuit (3 )

Published:2012/9/4 22:47:00 Author:Ecco | Keyword: Three-way , flashing light string

As shown in figure, it uses three-way flashing light string controller with three ordinary TRIACs, and it can make light string be lit in a cycle, the maximum output power of each road is up to 1000W, and the circuit is simple and easy to produce. VTH1 ~ VTH3 use 5A, 600V TRIAC, the maximum load power is up to 1000W ; VD1~VD3 can use 1N4007 ordinary silicon rectifier diodes.   (View)

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Pyroelectric infrared sensor automatic lamp circuit (5)

Published:2012/9/4 22:45:00 Author:Ecco | Keyword: Pyroelectric, infrared sensor , automatic lamp

As shown in the figure, it is pyroelectric infrared sensor automatic light with dedicated module, so the circuit is very simple. HD-03C is the pyroelectric infrared -specific module produced by Xianju Yongling electronics factory in Zhejiang, it contains all pyroelectric infrared processing circuits, and it can work as it is connected with a pyroelectric infrared sensor PIR.   (View)

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Double-key touching lamp switch circuit (6)

Published:2012/9/4 22:38:00 Author:Ecco | Keyword: Double-key, touching lamp switch

As shown in the figure, it is a double-key touching lamp switch with unique design, and the left part of dashed in the figure is the general lighting circuit, the right part is the light switch. It only has two leading-out terminals to external, so it can easily replace ordinary mechanical switch without changing indoors original wiring, this access method is called two-wire system connection. The load capacity of the circuit is limited by the regulator VS, so the bulb E's power should not be greater than 40W.   (View)

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TRIAC dimmer light circuit with dual time constant

Published:2012/9/4 22:19:00 Author:Ecco | Keyword: TRIAC , dimmer light , dual time constant

In order to solve the lag and light transition phenomena, it can use the Triac dimming light circuit shown in the figure with dual time constant. The circuit increases R3 , C2 resistor-capacitor network, and the reducing charge on capacitor C1 can get promptly complement through C2, R2, R3 circuit, it can effectively reduce the lag and lighting transitions and also expand minimum brightness adjustment range of light.   (View)

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HIGH INTENSITY LINE POWERED LED FLASHER (Dec 8, 2008)

Published:2012/9/4 20:48:00 Author:Ecco | Keyword: HIGH INTENSITY , LINE POWERED, LED FLASHER

There are times when you would like to generate an intensely bright flash of light using electrical power from the AC line. The circuit below can drive a one to three watt power LED with about 350ma of peak current. Since the circuit drives the LED with a constant current, any LED color can be used. I have also shown how you could use an array of 7 LEDs, wired in parallel. This array may not produce as much light as the single power LED but the array would be cheaper to build. Source: discovercircuits   (View)

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FLASHING LED POWER INDICATOR DRAWS LOW CURRENT .

Published:2012/9/4 20:47:00 Author:Ecco | Keyword: FLASHING LED, POWER INDICATOR, DRAWS , LOW CURRENT

This circuit flashes a power indicator LED to keep the average current low Source: discovercircuits   (View)

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Reflected Infrared Light Switch

Published:2012/9/4 20:45:00 Author:Ecco | Keyword: Reflected , Infrared Light, Switch

Infrared light reflected off a finger is used to activate this switch circuit. Drawing only 30uA from a 3v supply, this circuit will detect a human finger with a range of about 1 inch. The sensor uses an inexpensive infrared LED and a matching photo diode. Source: discovercircuits   (View)

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THREE VOLT LOW BATTERY VOLTAGE FLASHER

Published:2012/9/4 20:27:00 Author:Ecco | Keyword: THREE VOLT , LOW BATTERY VOLTAGE , FLASHER

This circuit is designed to monitor two alkaline cells (3v) that form the battery often used in portable electronic equipment. It use an inexpensive IC from Panasonic that is connected to an efficient LED flashing circuit. When the battery voltage drops below a certain point the circuit flashes the LED. Source: discovercircuits   (View)

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Fake Car Alarm Light

Published:2012/9/4 20:25:00 Author:Ecco | Keyword: Fake , Car Alarm , Light

Whenever the car?s ignition is turned off, this circuit activates a flashing LED, which can be positioned to appear as an active alarm system. Source: discovercircuits   (View)

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Pyroelectric infrared sensing automatic lamp circuit (7)

Published:2012/9/3 22:30:00 Author:Ecco | Keyword: Pyroelectric , infrared sensing, automatic lamp

As shown in the figure, it is a inductive automatic light with RDP-18 pyroelectric infrared sensor module, and RDP-18 is a new module produced by Jiangnan radio factory which is located in Jinhua, Zhejiang, and it integrates pyroelectric infrared control circuit, PIR sensor and Fresnel lense, so the circuit is very simple.   (View)

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Pyroelectric infrared sensing automatic lamp circuit (9)

Published:2012/9/3 22:39:00 Author:Ecco | Keyword: Pyroelectric, infrared sensing , automatic lamp

As shown in the figure, it is a inductive automatic light with TWH9512 pyroelectric infrared sensor dedicated module, and it can be used for occasions such as bathroom, storage room, stairs aisle lights control, and it can realize that lights are lit when people come, and turned off when people leave. At the same time, it also has light control circuit, and it can automatically close circuit during the day, so the lights will not be lit. Another feature of the switch is that it uses two-wire connection, so you don't need to change the original indoor wiring, you can directly replace the normal power switch, then the lights are reconfigured as infrared lamps automatically.   (View)

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