Circuits & Schematics Light: led - 8

Subsection: "Light"
  Including:
  Colour Organ   LEDs
Search results: 137 Output: 71-80
  1. .. the ultraviolet LEDs to offer an appropriate visible backlight. Although you may prefer to use a single high-powered white LED, high-powered ultraviolet LEDs appear to be unobtainable. This project uses 20 inexpensive LEDs offering 400 mW of ...
    12-06-2020
  1. .. Design Idea describes a single white-LED torch, which can be housed in an empty glue-stick tube and has a long rechargeable-battery life. The circuit is ...
    03-11-2020
  1. .. phones, PDAs, and MP3 players. Multiple LEDs often connect in series to ensure that the same current flows through every LED. To forward-bias these LEDs, a voltage of 10 to 16 V comes from an inductor-based boost regulator, such as an ...
    25-11-2020
  2. .. find wide use as indicators and as light emitters in devices such as optocouplers. In some applications, the LED or the emitter may be located remotely at some distance from the main unit. Typical examples are dashboard-mounted ...
    19-07-2021
  3. .. mA. Today's white LEDs deliver more light and thus must operate at ever-higher bias currents. Maintaining control of an LED's bias point while operating at high current near its maximum rating requires a new approach. The simplest and ...
    18-05-2022
  4. .. 1.5 V cell poses a problem because their forward voltages are higher than the cell’s. The simplest way to light the LED is to use a step-up dc/dc converter. This Design Idea offers a simple and reliable alternative for applications in ...
    23-12-2022
  5. .. pump to generate negative supply voltage in battery-powered systems. This Design Idea shows how to use it to light a white LED from one cell without an inductor. РFigure 1. Resistors R 1 and R 2 and capacitors C 1 and C 2 set the oscillation ...
    15-02-2023
  6. .. driver circuit using LEDs, although easy, yields only typical results because the tests don’t factor in worst-case LED parameters and often generate undesirable light and heat during driver debugging. Although using a constant ...
    20-03-2023
  7. LED drivers have lots of features and require plenty of external components. When your application requires no PWM ...
    18-07-2023
  8. .. action in inductor L. The voltage across the inductor reverses, and the energy stored in the inductor transfers to the LED in the form of a down-ramping pulse of current. During flyback time, voltage across the LED is approximately ...
    19-07-2023

Sort by: relevance / date

Search "led" on other search engines: Only-DataSheet.com Google
EMS supplier