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LED and Light Circuit

Index 27

Two alternating flashing LED light controlled by digital IC

Published:2011/11/7 20:34:00 Author:Ecco | Keyword: Two , alternating flashing , LED light , digital IC

Two alternating flashing LED light controlled by digital IC
The chart shows the TTL or CMOS digital integrated circuits controlling circuit, and it uses the transistor to drive two LED lights flashing alternately. Different supply voltage can be used to change the R's value and the VD3 regulation to meet the alternately flashing requirements. (View)

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The flashing LED controlled by digital IC

Published:2011/11/7 20:35:00 Author:Ecco | Keyword: flashing LED , digital IC

The flashing LED controlled by digital IC
Digital integrated circuits can be TTL or CMOS circuits , and VT uses the general NPN low power tube. (View)

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TTL LED driver circuit

Published:2011/11/3 3:37:00 Author:Ecco | Keyword: TTL LED driver

TTL LED driver circuit
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LED driver circuit with CMOS OPAMP

Published:2011/11/3 3:37:00 Author:Ecco | Keyword: LED driver , CMOS OPAMP

LED driver circuit with CMOS OPAMP
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The driver circuit diagram of two infrared light-emitting diodes

Published:2011/9/26 2:23:00 Author:Rebekka | Keyword: driver circuit, light-emitting diode

The driver circuit diagram of two infrared light-emitting diodes
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IR remote control dimmer light circuit diagram

Published:2011/9/27 1:50:00 Author:Rebekka | Keyword: IR remote control dimmer light

IR remote control dimmer light circuit diagram
(a) is infrared emission circuit diagram. NE555 circuit generates a 40kHz pulse which is sent by the infrared emission control SE303 after beingamplified by VT. (b) is remote receiver and infrared dimming circuit composed of the KA2184. LS7232 is an integrated dimming circuit. (View)

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LED boost pressure driver circuit diagram

Published:2011/9/15 22:50:00 Author:Rebekka | Keyword: LED , boost pressure driver

LED boost pressure driver circuit diagram
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Emergency lighting circuit diagram 02

Published:2011/10/17 2:31:00 Author:Ecco | Keyword: Emergency lighting

Emergency lighting circuit diagram 02
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Delay energy-saving lighting circuit diagram

Published:2011/10/14 3:09:00 Author:Ecco | Keyword: Delay energy-saving lighting

Delay energy-saving lighting circuit diagram
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Crystal diode QZX3636C5V6 internal circuit diagram

Published:2011/9/15 2:04:00 Author:Rebekka | Keyword: Crystal diode, internal circuit

Crystal diode QZX3636C5V6 internal circuit diagram
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220v led indicator light circuit diagram

Published:2011/9/14 22:40:00 Author:Rebekka | Keyword: led indicator light

220v led indicator light circuit diagram
Figure 1 shows the circuit, whichhas only two components. R selects 1/6--1/8W carbon resister or metal film resistor, the resistance is betweenthe 1 - 300K. Ne is a neon bulb. It also uses the neon bulb in ordinary fluorescent starter. If you want to use 60V small neon bulb that is able to start neon bulb. The model is NNH-616 type, resistor R uses 270K 1 / 6W metal film resistor. Led light circuit is shown as the chart. (View)

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LED mains supply indicating circuit diagram

Published:2011/8/3 2:34:00 Author:Ecco | Keyword: LED , mains supply indicating

LED mains supply indicating circuit diagram
C1 and C2 in the circuit play the role of ballast and buck, andR is used for obstructing the transient inrush current. The circuit has low power consumption, reliable advantages, and it is suitable for electronic equipment as the instructions for mains supply. (View)

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The driver circuit diagram of the voltage LED

Published:2011/8/3 2:35:00 Author:Ecco | Keyword: driver circuit, voltage LED

The driver circuit diagram of the voltage LED
Voltage LED is convenient to use, but we should pay attention to the drive circuit's forms and ensure that the positive and negative tubes may not reversed; it must be used at rated voltage. Figure 1 shows four typical driven modes for reference. (View)

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High power led drive reduction voltage regulator circuit diagram

Published:2011/8/22 22:31:00 Author:Rebekka | Keyword: High power , led driver , reduction voltage regulator

High power led drive reduction voltage regulator circuit diagram
The input voltage in the whole series or series-parallel LED system is higher than the the maximum forward voltage, the best option is the standard power buck regulator topology. Because it has the output sensor, andit is ideal for constant current drive. In the three standard DC-DC converters(buck, boost and buck - boost), only the buck converter LED driver average load current or IF is equal average inductor current. No matter which controlling method you use, in fact, the output current will not have transient change in any part of the switching loop. This makes it easier to convert the constant voltage source to constant current source. To be more specific, many step-down converters based on constant current circuit can run without output capacitor. (View)

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SS0604 Touching stepping dimmer circuit diagram

Published:2011/8/9 20:16:00 Author:Ecco | Keyword: Touching stepping dimmer

SS0604 Touching stepping dimmer circuit diagram
The five-speed four-step touching stepping dimmer shown as the chart is composed of the SS0604 integrated circuit, and touching the M repeatedly, the lamp brightness of E will changein the cycle of low, medium, medium to high, the brightest, turning off ... for the user to select. (View)