I want to make a simple flyback transformer driver. I have a flyback transformer of samsung CRT monitor. Can anyone give me a complete design of flyback transformer's pin. What are the required components. Please give answer in detail.
These transformers are designed for TV or monitor line frequency. They use a square wave drive at the line frequency (15625Hz or more for a monitor) The on time is around half the duration of a cycle or more, so 32us for 15625Hz. The driver is a switch, it is on for this time. The current builds as a sawtooth (ramping) current in the inductance of the winding during this time. The design of the driver switch needs to take into account ratings are in the safe operating area (SOA). This means the rate of change of voltage and current, as well as the instantaneous V * I must always be within ratings. It means that the switch should be rapid, so there is minimal time spent in the transition off to on and on to off. There usually needs to be a snubber network to control voltages across the transistor. The pin connections of the transformer? The links below show how to do it basically. It also shows how to check out and identify the windings you need, and also to verify them, using the schematic of the original device if possible. Tracing wires on the circuit board can help too, to identify the primary. You only need to identify 4 pins usually. There are some safety issues here. Some have small internal capacitors that store energy. This can give an unpleasant shock. It could be around 0.2 joules or more because of the high voltage. I am not sure what sort of a hazard this might be, but I wouldn't take it too lightly or use it to shock yourself or others. I assume you are using a 12V DC supply @ a few amps current to power this.
submit a schematic and a few concepts on the transformer. Circuits with transformers continuously have some inductive power that could desire to be dissipated whilst the transistor(s) turn off. this could reason extreme voltage spikes which could unquestionably injury a transistor (whether the case isn't warm). you may desire to guard in comparison. A 2N3055 is an quite sluggish gadget and not very proper for top velocity switching.
