DRL’s Electronic Ballast
What is electronic Ballast?
Electronic Ballast is a device which controls the starting voltage and the operating currents of lighting devices built on the principle of electrical gas discharge. It refers to that part of the circuit which limits the flow of current through the lighting device and may vary from being a single resistor to a bigger, complex device.
How it works?
For a lighting device based on electric gas discharge to work, the ionization of gas in the tube is necessary. This phenomenon takes place at a relatively high potential difference and/or temperature than the normal operating conditions of the lamp. After the arc is set up, the conditions can be brought down to normal. To achieve this, three types of methods are generally employed: pre-heat, instant start and rapid start. In pre-heat, the electrodes of the lamp are heated to a high temperature before the voltage is impressed upon them through a starter. Instant start ballasts were developed to start lamps without delay or flashing and use an initial high voltage in place of raised temperatures. Rapid start ballasts make a tradeoff between pre-heat and instant start and use a separate set of windings to initially heat the electrodes for a lesser duration and then, using a relatively lower voltage to start the lamp. Another type, programmed start ballasts is a variant of rapid-start. Any of these starting principles may be used in the ballasts. Initially, when the gas is unionized, it offers a high resistance path to current. But after the ionization takes place and the arc is set up, the resistance drops to a very low value, almost acting like a short circuit. If all this current is allowed to pass through the lamp, the lamp would either burn out or cause the power supply to fail. Thus the ballast needs to perform the current limiting.
What we made?
We designed our own circuit for a Polymer Stamping machine. This design uses low value Electrolytic Capacitor with auto Power Factor Correction Circuit. To Enhance the Tube Life a strict current control circuit is added to the main circuit. These added circuit design makes the regular design into Custom Built Design. This design uses 20 SMD Components of all sizes to assist our SMD Assembling Experience.
Where we use the product?
You can order this board for your own machine which is having xenon lights or UV lights where our own ballast helps to enhance the Tube’s life with added performance.
For more information, details and enquiry don’t hesitate to contact us at dharmaresearchlab.com
