Inverter for LDS from a broken laptop

In this article I will talk about how you can just make an inverter for LDS. I needed it to check the backlight of the lamp matrices of laptops. In such matrices, a regular gas discharge lamp of very small diameter is installed as a backlight. And like any other kind of lamp, it starts only if a large potential is applied to the filament. The laptop is responsible for this inverter.
Inverter for LDS from a broken laptop
But, unfortunately, it’s not always possible to run it away from a laptop, and besides, it’s not always possible to find a worker . I propose to make a decent alternative to this device. And so all we need is a computer power supply of any power and a transformer from an inverter or similar self-made. First of all, take the power supply and drain all the extra wires except the green one and connect it network (220 V) Inverter for LDS from a broken laptop
The green wire can be immediately soldered to the minus (where there were black wires) this wire is responsible for starting the power supply when it is closed on the case, the same thing happens when pressing power button on the system unit. Now you need to solder to the low-voltage windings of the main (largest) transformer. Without exception, any power supply unit produces voltages of +3.3 (orange wires) +5 (red wires) +12 (yellow wires) Accordingly, each terminal has its own output and one earth (black wire) Approximate diagram of the output block of any BP element designation approximate data taken and may not match.
 Inverter for LDS from a broken laptop
In these sections of the circuit, we get low high-frequency voltage.
 Inverter for LDS from a broken laptop
 Inverter for LDS from a broken laptop
Thus, we received two taps and with variable RF voltage, now it's a matter of small to find a high-voltage transformer.I used a transformer from an inverter, you can make it yourself or use a line transformer.
Inverter for LDS from a broken laptop
 Inverter for LDS from a broken laptop
That's all you need to check the device and remove in the body. The device works the first time without any settings. The voltage at the output of the transformer is relatively high, but due to the high frequency, it is not fatal if the pain is damaged in a short period of time, it is not felt if prolonged exposure causes deep burns. Be careful! For the first run, I advise you not to connect to the 12 V output but to 5 V, since Breaking of the high voltage winding is possible. Laptop Matrix:
 Inverter for LDS from a broken laptop
Turn on
 Inverter for LDS from a broken laptop
Lamp from matrix laptop: Inverter for LDS from a broken laptop Also, if the transformer has sufficient power, you can connect any other similar lamp or just get high RF voltage. Remember, the voltage of 220 V is life threatening, installation must be done strictly with the device disconnected from the network.

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