Create a linear regulated power supply up to 35V, 30A

Adjustable capacitor Murata genuine original

TZC3Z030A110R00 MURATA Murata adjustable capacitor original spot

RF cable can be customized for other specifications

This is a model to play. When I came back, I found that the pin drawing of 7915 was reversed. I only went to the heat shrinkable tube test.

The transformer was previously removed from the control cabinet. It has been used for 4 hours. 6V12V24V36V, 1000VA has a weight of more than 20 kilograms. It just happens to be the main transformer. It adds 3 independent windings to make auxiliary power for heat dissipation. This piece is removed from the street lamp. It is a windy day. The street lamp is scraped down. By the way, one is back enough to be 300X500X50MM.
Saw 100MM from above to make heat sink

Using classic op amp + expansion circuit to make simple and durable auxiliary power supply with 7815 and 7915 get positive and negative 15V to the op amp power supply 431 to do the op amp reference voltage do not want to rewind the transformer secondary only made three voltage switching input op amp The TL082 pushes the tube with the Darlington tube TIP142 to adjust the tube with 25A TIP35C three pairs

Use the resistance wire in the water to do the load test. The maximum resistance is only about 20A. The resistance wire can't stand up. The instantaneous melting current is up to 10A. The voltage drop is 100MV. The pressure drop is about 400MV. The voltage regulation effect can also be adjusted. Up to 10 load currents with ZVS induction heating up to 25A, I will go, and soon ZVS a venue 260 hangs without a suitable load. I want to test a power supply. I don’t know how big the current can be. First made the box

I found a few wooden floors to make a good box. 240X300X170MM All the openings and slotted wash edges are done with my bench drill. There is no engraving machine. I want to make a good panel. It’s really hard to make a box.

The effect after painting is not very beautiful. The gold and silver are very perfect. The mirror of the frame is welded with a mirror. The mirror is very beautiful. The design is good. The heat is better. The top and the drawer are easy to open and close. Two holes are ready to be fitted with the T12 soldering station. It is a pity to use such a large box.

In the case of short circuit, the 5V20A constant current output constant current indicator light is on. It is found that the short circuit is very easy to burn at high voltage and high current. The tube is pushed at the CE level of the push tube and the protection diode is used for peak absorption. Nothing is very resistant. There is still a problem that is not solved. The current can't be adjusted. The minimum current has a 400MA. I can't adjust it. I suspect that the current-sense resistor is too large. I use the 0.02-ohm Kangcon wire for the current-sense current-sense resistor. The resistance value of this resistor should not be too small. If it is too small, it will not cause the current flow to cause the single tube heat of the adjustment tube to be too large and the resistance will be too large.