search:led lamp circuit相關網頁資料

- en.wikipedia.org
  
  LED lamp - Wikipedia, the free encyclopedia
  
  These standards detail performance specifications for LED light sources and prescribe test methods for solid-state lighting products. The Illuminating Engineering Society of North America (IESNA) published a documentary ...
  
  2024-04-21
  
  瀏覽：1068
- www.circuitdiagram.org
  
  12V LED Lamp Circuit | Circuit Diagram
  
  A very useful project of a 12V LED Lamp circuit. This led circuit is very simple consist of 5 resistors and 15 super bright white 5mm LEDs which are easily available now a days on very cheap prices. You can use any type of 12 volt battery with this circui
  
  2024-04-21
  
  瀏覽：540

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LED Night Lamp Circuit - Electronics Projects Circuits

日期：2024-04-21

The design of the LED night lamp circuit (bedroom light) is similar to that of many commercially available products. However, the light circuit does not us ... No problem with the 1M resistor –it is a safety bleeder to discharge the series capacitor when ...

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A simple LED lamp circuit from scrap. Uses 5 LED and takes only 50 mA

日期：2024-04-26

Convert a used CFL into a power saving LED lamp circuit that consumes only 50mA. This gadget can be used in applications like night light, table lamp etc ... Hi, I made the 2 nos. 5w LED bulb circuit as suggested by you. It worked well for some time, then...

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USB LED Lamp Circuit using 5 Volts - Electronic Circuits Diagrams-Electronics Projects Designs-Hobb

日期：2024-04-25

A simple usb LED lamp circuit using 5 volts power supply from usb port, which can be used to light a desktop or laptop computer during power failure. ... Hi Kailash add one more 1N4007 in series with D2 then the constant current output at Q1 collector wil...

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LED Night Light / Lamp | Circuit Diagram

日期：2024-04-24

Here is a simple LED night light circuit which can be used as a room night lamp. The circuit is simple and can be built with few components. The circuit is using four LEDs to perform as a night lamp . You can use blue or white colour LEDs or any other col...

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AC Powered 220V Led Circuit - Electronics Projects Circuits

日期：2024-04-22

This is the simple version of a white LED lamp that can be directly powered from mains. It can give ample light even for reading purpose. Capacitor Cx along with diodes D1 through D4 forms the AC step down circuit. Cx reduces high voltage AC from mains to...

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Transformerless Led Lighting Led Lamp Circuit | Electronics Projects Circuits

日期：2024-04-21

Transformerless circuit with 220V AC LED lamp is working . Half -polar LEDs 1 uF capacitor to run the transformer is used instead . High- voltage...

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1 Watt LED Emergency Lamp Circuit Using Li-Ion Battery | Homemade Circuit Designs Just for You

日期：2024-04-19

The post explains an emergency light circuit using 1 watt LED and Li-ion cell ... The PNP transistor is held reversed biased as long as mains AC stays active, while the Li-Ion cell is charged gradually charged. In case the mains AC fails, the transistor s...

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Homemade 10/12 watt LED Lamp Fixture Circuit | Homemade Circuit Designs Just for You

日期：2024-04-19

This site is dedicated to all electronic hobbyists and professionals. Here you can post circuit related queries, have discussions and also publish your own homemade ... The post explains the construction of a homemade 10 watt LED lamp using 10 to 12 numbe...

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