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Schematic IR2130 for 1kw high pressure mercury lamp ballast system
Application of a kilowatt high-pressure mercury lamp ballast system; the schematic in Figure 12.44 illustrates the IR213D used for a high-pressure mercury lamp ballast system. The IR2130 is utilized not only to drive a single-phase full-bridge inverter with four IGBTs...
Lamp-Switching Circuit Circuit
A normally open pushbutton switch (SI) provides a positive input pulse to pin 4 of U1, activating the integrated circuit (IC). The output from U1 at pin 6 delivers base-drive current to a Darlington pair consisting of Q1 and Q2,...
Lamp Timer
The purpose of this circuit is to power a lamp or other appliance for a given time (30 minutes in this case), and then to turn it off. It is useful when reading at bed by night, turning off the...
lamp turning off prevention circuit of car
The car's small lamp and headlight can drain the battery if they are not turned off, leading to engine starting issues. A simple circuit, developed around 1980, can prevent this problem. It includes a series circuit with a diode and...
Double tube fluorescent emergency circuit 2
This is a Nissan Panasonic rechargeable emergency fluorescent lamp circuit. It features built-in 6V, 4Ah high-energy batteries that can be directly charged. The circuit supports two 6W fluorescent lamps. It includes functional switches SAi and SAz. When SAi is set...
40 Watt Fluorescent Lamps Diagram Schematics
This circuit is designed for a 40 Watt fluorescent lamp. It operates similarly to a traditional strobe light, but utilizes a fluorescent tube instead. The fluorescent tube remains continuously energized, with both electrodes supplied with electricity. This current causes the...
El-Cheapo Fluoro Ballast
This simple circuit can start small (15W or less) fluorescent tubes, such as those used in PC board exposure and EPROM ultraviolet erasure boxes. The tube's filament heaters are not utilized. Instead, ignition is provided by a voltage tripler formed...
Compact fluorescent lamp
Compact fluorescent lamps offer several advantages over traditional incandescent bulbs, including reduced power consumption (up to 80%) and significantly longer lifespans (5 to 15 times longer). However, they have some drawbacks, such as longer warm-up times, particularly in more expensive...
The fluorescent with reactive power compensation circuit diagram
The fluorescent lamp with reactive power compensation operates with a ballast that acts as an inductive load. This inductive load requires reactive power, which leads to a decrease in the power factor of the fluorescent lamp. A lower power factor...