SMPS Repairing Tools & Equipment
Good day, electronic friends today.
It is very difficult to find SMPS when using only a bundle, and some bugs need to be used.
Gather some of the equipment I use below, then use the multimeter, some of which we can fix, and the correct position of the equipment is very important.
1) ISOLATION TRANSFORMATION
This turns us into a 230v-230v device that is used to minimize the damage from electricity, but the risks of electrocution are very low, since it is not connected to the ground terminal, resulting in a voltage separating from the main supply.
This is important for SMPS. If we miss the HOT ground, we will get electrocuted but this transformer will not be used (if you forgot to repeat the Transformer lesson)
If you want, Isolation T / F can be used to adjust the voltage of the image
2) AC ammeter
Many defects can be detected by the ammeter, for example, suppose we are installing a new diode. If this diode is damaged by a fault in a different part of the circuit, if we give the main power directly, the diode will burn again, if we have an AC ampere in the circuit. Supply can be solved if the current flows through the supply.
Some devices work fine at the moment of installation, but the same error occurs again after a few hours, such as supplying a gasket and monitoring the power supply and finding fault.
Error detection is much easier if you have both of the above devices, because you can give the faulty device an ac voltage that increases gradually (0 - 30 v) and monitor the ammeter. Well, now we can remove the ac supply and detect the equipment that is overheating
But please remember to turn off the ac supply and do not discharge the capacitors, because we have a voltage of 30 v
3) Multimeter
This device can also detect the most important types of multimeters of various types.
4) LRC meter
The multimeter, as well as its ability to measure the capacitance and inductance of this device, can be expensive, and useful.
Time
5) ESR Meter
If a capacitor with a high ESR value is the fault, this is the only device that will take care of this meter in the local market, but you can find it in EBAY, or on the Internet. could
6) BLUE RING TESTER
If a conductor in the SMPS transformer is light-circuited, it cannot be used by the multimeter, as the instrument is less resistant to the Normal case, and if the instrument is internal-circulated, it cannot be found at the LCR.
This instrument detects this type of winding, which can be checked for any number of coils such as the TV FLYBACK transformer, the B + winding, etc.
This is also not available in the Sri Lankan market but can be created with a simple circuit
The advantage is that the transformer can be checked without removing the circuit. I'll tell you how to make this ...
7) The oscillator
This is the only device that can check if power ic is working properly, and if you have a two-way circuit you can buy it in Analog and Digital ...
Artical credit :Ruchiran Isharaka
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