Description
Use genuine 7812/7912, 7815/7915, 7805/7905, 7809/7909 for voltage stabilization, the highest input voltage is plus or minus 35V, and with heat sink. Four main filter electrolytic capacitors, divided into two levels of filtering, single capacity can be 470uF (total capacity 2300uF), or 1000uF (total capacity 4400uF), or 2200uF (total capacity 9000uF), can be used as NE5532, OP275, AD826, etc. The front-end supply or various ADs that require positive and negative power supplies are circuits or sensors, or sensors, instruments and instruments that provide power with low internal resistance, low noise, and low ripple. Voltage regulators are always available for plus and minus 12V and plus and minus 15V, plus or minus 5V, plus or minus 9V are optional. Before using the board, please confirm the output voltage of the power transformer used, as well as the range of power fluctuations, and reserve a certain voltage margin. Board size: Length: 72mm Width: 30mm (36mm with heat sink) Height: 25mm (2200uF is 28mm) The highest input voltage: dual AC voltage is 22V, the highest