Bộ Bảng Mạch Nguồn Tự Điều Chỉnh DC 0-30V 2mA-3A

Estimated delivery time for this product is 7-9 days This circuit is a high quality continuous adjustable power supply with voltage control range from 0-30V. The product also includes A current output limit circuit, effectively controlling the output current so that it can be continuously adjusted from 2 mA to 3 A. This feature allows this stable power source to become an indispensable accessory for circuit experiments. The product can limit the current to the typical working current of the laboratory circuit and power on without worrying about damage to the test circuit due to large current damage or fault. Installation. Product information: Input voltage: 24V AC Input current: 3A-Max Output voltage: 0-30V can be adjusted continuously Output current limit: 2mA-3A can be adjusted continuously Ripple output voltage: 0.01% Pcb size: 84 * 84mm Circuit characteristics: All components in the line, easy to install and maintain; Output voltage is easy to adjust; The output current limit status is indicated by LED light; When the output current exceeds the limit current, it will automatically switch to constant current mode, providing complete protection from overload or damage. The radiator and fan are not included in the kit and there is a 24V cooling fan interface outside on the board. The control tube of this circuit must be equipped with a radiator or fan large enough to operate with loads, remember! Otherwise, the adjustable tube will be damaged by overheating. The potentiometer can be solder directly on the board, or can be led to the board for installation. The product set is equipped with sockets and cables The power transformer uses a 24V AC output (or 12V dual, the hose in the middle is empty, not higher than this voltage) and can choose the source when needed. If the output is required 30V3A, the transformer power must be greater than 90W. 1. Place the potentiometer adjustable to a small position (turn counterclockwise to small), adjust RV1 (100K adjustable resistance), so that the output voltage is 0V, the output voltage is not Need to adjust, use 24V AC input, output voltage is about 31V 2. Output line setting: Determined by the position of the current potentiometer. The picture below shows 10V voltage and load resistance of 10 ohm. Adjust the current potentiometer to keep the LED light on. At this time, the potentiometer is at 1A and the circuit switches to constant current. At this time, adjusting the potentiometer, you can see that the voltage will not continue to rise, and the current is maintained at the current limit of 1A. Note: The power source is high voltage and high current circuit, be careful, otherwise it can harm personal safety! This shop only guarantees the accuracy of the set and circuit, and does not bear any adverse consequences caused by production!