Voltage adjustment from 0.1V to 25V with “+” and “-” buttons; When the “+” and “-” buttons are held down, a slow change begins at 0.1V, after 2 seconds the change accelerates. Min. for 3A version of current limit. Min. for 150mA and 10A version. Setting it to 500mA; The current mode is selected by…
I made an application about converting the old generation ATX power supply to a 0.24v 0.8.5A regulated power supply, as in the project of converting the computer power supply to a battery charger that I shared before. The price of regulated power supplies has increased, this power supply is very useful in your workshop, and…
The circuit consists of the following units: a rectifier with a filter, a +12V voltage stabilizer, voltage stabilization, current stabilization, indication, a control unit and overheating protection. If the output voltage can reach 50V, and not limited to the supply voltage of the op-amp (32 V), as in the vast majority of LBP circuits. The…
Actually, I implemented the power supply circuit with limited possibilities, but it is sufficient for me, the first tests were done successfully. Since I have a toroidal transformer with an estimated voltage of 250W…300W 2X15VAC, I did the tests with it, and the normal sheet transformer can also have a usable power of at least…
A simple 0-30V 0-3A regulated power supply circuit based on the NE5532 opamp IC that you can use in your electronics workshop. Basic parameters of the power supply: Input voltage 24 – 26 V AC, DC output voltage 0 to 30V, Output current 10mA – 3A. It’s an open circuit. The current limiting resistor is…
I have seen different versions of the power supply, even the same circuit has a halide designed as a battery charging circuit in the LM317 datasheet file and in some electronic books, but I did not have the opportunity to apply it. Nevertheless, the familiar power supply circuit such as the LM317, made with the…
Regulator circuits such as LM317, LM350, which are used for many electronic circuit feeding, do not have current adjustment. In this project, current adjustments are provided with a few additions, and the reference voltage is pulled to zero, and a simple cheap laboratory power supply circuit with a voltage between 0.30V and 0.3A current is…
Smps circuit controlled by TMS320F28062 IR4427 Gate driver. Designed with pfc circuit L6562 The design of printed circuit boards and the creation of electrical schemes is realized through Eagle cad. Due to the design of the resulting device, the inlet filter is together with an active rectifier placed on a separate printed circuit board. On…
Dual, independent power supply, designed to polarize condenser microphones with voltage of +48 V. The built-in transformer and compact size of the board allow you to install the power supply in any electroacoustic device. Recommendations: the device will be particularly useful for constructors and service technicians of audio equipment and for testing microphones. It consists…
0-30V 0-10A laboratory type adjustable power supply I mentioned in the article of the relay bypass circuit for regulated power supplies, the K7200 kit version is 1/1 clone There is almost no difference except a few changes in PCB design and the use of 6 power transistors. LM723 amplifiers were used at the control level…