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Simplified Three Level Dimming Cfl Fluorescent Ballast Using The Irs2530d
Producing and manipulating the sine wave function is a com- mon problem encountered by circuit designers. Sine wave circuits pose a significant design challenge because they rep- resent a constantly controlled linear Oscillator Sine wave circuitry is required in a number of diverse areas, including Audio testing, calibration equipment, transducer
eec247 Information on compact fluorescent lighting
The magnetic field built up in the ballast collapses quickly, producing a high voltage across the tube and causing the internal gas to conduct. It`s a bit like slowly blowing up a balloon and sticking a pin in it.
compact fluorescent lamps how to dim them
12V Fluorescent lamp flashing circuit
This is flashing blinks circuit, 12V sizes. By use fluorescent lamp the small-sized.It live the work of relay perform be the circuit modifies from DC to be..
Fluorescent Tube Light Circuit
Fluorescent Tube Light Circuit of an inverter that uses a single transistor and a single transformer. This type inverter can be made in various..
IC fluorescent dimming considerations
This article provides an overview of fluorescent dimming and an application circuit for low-end small fixture applications ICs where dimming levels below 10% are required and more comprehensive protection features are needed. The electronic ballast circuit block diagram (see Fig. 1) includes the ac-line input voltage (typically 220 Vac/50 Hz or 12
Dimmable Fluorescent Lights Bulbs
The brightness of a fluorescent light bulb or neon tube cannot adjust as easily as that of a incandescent bulb because it starts only when a voltage is much higher than that of the network, then remains on at electrical network voltage. Normally, the high starting voltage is obtained by the interruption of current that circulates through a choke c
Fluorescent Lamp Lighting
40W Fluorescent Lamp Inverter
This 40W fluorescent lamp inverter allows you to run 40W fluorescent tubes from any 12V source capable of delivering 3A. This is basically a larger version of the 12VDC Fluorescent Lamp Driver and can be used to light regular or blacklight tubes. # Wind L1/T1. You will need an AM antenna rod that is about 60mm (2. 5 inches) long to wind T1/L1 on. T
14 Watt Compact Fluorescent Electronic Ballast
This circuit came from a 14 Watt Commercial Electric spiral bulb from Home Depot. In fact, I drew it in that way because it was layed out very well, so much credit should go to Sam Goldwasser. It is a rather interesting oscillator circuit which I will attempt to explain the operation of. However, I don`t fully understand it, so if someone else doe
Driving a fluorescent tube
Even if a fluorescent tube it`s not a neon glow lamp and this page it`s not maybe at the right place, this circuit is very interesting because it uses an odd way to power a very common lamp. Like glow lamps, neon tubes are composed by two electrodes in a low pressure atmosphere composed by a mixture of gazes; usually argon and mercury producing UV
16w 12v fluorescent inverter with AC output
This inverter will drive any fluorescent lamp between 8w and 20w but works best with 16w tubes. It preheats the electrodes and keeps them heated while..
Compact fluorescent lamp
Compact fluorescent lamps have some benefits in comparison with classic light bulbs. It is lower power consumption (to 80%) and much longer lifetime (5 to 15 times). Disadvantages are longer starts mainly at more expensive types, impossibility to use darker and price. Most often we meet with "warm white", which is close to classic bulb and which i
Compact Fluorescent Lamps How To Dim Them
How Compact Fluorescent Lamps Work and How to Dim Them
Dimming function opens up a completely new family of CFL applications Compact fluorescent lamps (CFLs) are replacing incandescent light bulbs at a rapid rate due to their..
Vacuum Fluorescent Device Regenerative Receiver
This little project arose from a desire to experiment with some of the more "traditional" methods of radioconstruction which enjoyed popularity some 70 years ago. I wanted to find out for myself what kind of performance could be achieved using simple circuits incorporating Valves/Vacuum Tubes and low budget design techniques popular in the 1930`s.
12 Volt fluorescent lamp drivers
Whenever there is a need for battery-powered lighting, like for camping, solar powered cottages, cars, boats, planes, or emergency purposes, fluorescent lamps have a great appeal. Firstly, they are very much more efficient than glow lamps, so they produce much more light for less power consumption. Secondly, their light color stays constant while
Fluorescent Lamps Ballasts and Fixtures
Fluorescent lamp driver circuit composed of FET
Fluorescent tube is connected in the LC resonant circuit composed of L2 and C9. Bidirectional breakdown diode VD4 is starting circuit. When AC power is connected, VT2 gate potential increases by VD4; when the voltage exceeds the gate threshold voltage, VT2 is conducted. Thus, the resonant current folws C8, fluorescent wire, resonant capacitor C9,
IR2156 fluorescent lamp integrated circuit electron ballast
IR2156 can offer solution of high cost-effectiveness for fluorescent electron ballast. It can integrate lighting tube error protection and the programmable working frequency with warm-up, lighting and ballast continue working.
Fluorescent lamp electronic ballast
The fluorescent lamp electronic ballast circuit is composed of the rectifier filter circuit, high-frequency oscillator circuit and output circuit, and it is shown in Figure 3-202. Rectifier filter circuitis composed of the rectifier diodes VDl-VD4 and filter capacitors Cl, C2. High-frequency oscillator consists of the transistors VI, V2,...
Connection circuit diagram of four-wire ballast in fluorescent
Four-wire ballast connection of fluorescent There are four lead wires in four-wire ballast, including main and auxiliary coils. The connection of two lead wires in main coil is the same with second-line ballast, both of them connect between the lamp and power supply in series. The two lead wires in auxiliary coil connect between the starter and...
General connection method of fluorescent lamp circuit diagram
General connection method of fluorescent lamp Fluorescent lamps used in homes and public places lighting and so on, with luminous efficiency, long service life, Figure 20 is the general wiring diagram for lamp. Fluorescent working principle: When the switch is closed, power is on, the lamp doesn`t start to discharge, power supply voltage is...
Homemade 20W fluorescent lamp dimmer circuit diagram
Homemade 20W fluorescent lamp dimmer Using the method of connecting capacitor in series can easily control the brightness of fluorescent lamps. To adapt to different lighting requirements. Figure 28 is a modified circuit diagram. When the switch connects to the 1, the brightness of the lamp is normal, the actual power is 20w; and connects to 2,...
The fluorescent with reactive power compensation circuit diagram
The fluorescent with reactive power compensation As ballast is an inductive load. It needs to consume some reactive power, causing the power factor of fluorescent lamp decreases. It affects the ability of full-powered devices, and reduces the voltage of power stations, and it`s harmful to saving electricity. In order to improve power factor, where
20W Fluorescent Lamp Electronic BallastCircuit
High-Power Long-Life Compact Fluorescent Lamp / Tube lamp Controller
We can use UBA2021 for 600 V lamp controller and half-bridge driver IC for high-power. The UBA2021 is a long-life CFL/TL applications. It`s equipped with..
UBA2024 Compact Fluorescent Lamp Controller
The UBA2024 is a half-bridge IC and 550 V lamp controller. This device is equipped with 9 ohm switches that espouses standard CFL applications up to 15 W. The..
12V 40Watts (2x20Watts) Fluorescent Tube Lamp Inverter
A 40 watt fluorescent (tube lamp, TL) or two 20-watt tubes in series will be driven by this circuit. The transformer is wound on a ferrite rod 10mm dia and 8cm..
12V 6-12 Watt Fluorescent Tube (Neon) Lamp Inverter
A 40 watt fluorescent tube lamp or two 20-watt tubes in series will be driven by this circuit but this circuit will produce less brightness than usual, since..
This circuit shows a solid-state fluorescent-lamp starter that uses a SIDAC. In this circuit, the ballast is identical to that used with a conventional glow-tube starter.
Light Sensing Circuits
Light Dimmer Circuits
Ultrasonic distance finder circuit
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is measured. There are three main categories of distance measurement methods in use: a) By...
Simple Metal detector circuit with CD4030
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to find something potentially valuable, hidden a few centimeters below the soil. So many...
Fully automatic watering circuit for flower pots
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This circuit comes as a solution to this problem. Depending on humidity of the pot at...
Simple deep searching metal detector circuit
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the circuit of this metal detector, it is possible to detect a metal coin in depth of 90 to...
Sub-Harmonic Bass Converter for Electric Guitars
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound, such as filtering or distortion. Instead, a frequency division system produces outputs...
Echo Depth Sounding Sonar for Boats
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the calibration of the rope. This arrangement still exists in some yachts. The big...
100W HiFi Audio Amplifier Circuit
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power supply must be symmetrical so that no electrolytic capacitors are needed at the outlet....
Plant-Pot Water Level Indicator Circuit
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower. The circuit of the device is shown in Figure 2. The water detection is made from the bottom...
Analogue Sound Preasure dB-Meter Circuit
The best human ear can capture sounds from 20Hz to 20KHz. These limits are known to be the broadest that can exist. Normally the normal limits range from 100Hz to about 13KHz and depend on the age and health of the individual. We for our measurements and to have a good accuracy we will get the limits of 20Hz to 20KHz. A sound to be heard does...
DIY HV Variable Capacitor
DIY PMA Alternator Plans
Digital Signal Integrity