I would like to input DC9V voltage into 12V, 15V multi-channel, how to do the details of the master
DC-DC converter can be used, its working principle is: the input DC voltage through the oscillator into high-frequency AC, and then by the high-frequency transformer boost, and then rectification to get the required DC voltage.
DC circuit using the transformer, first of all to DC into AC (switch conversion), that is, with switching power supply.
On the switching power supply is more complex than the proposed purchase of finished DC-DC module. Select the appropriate DC-DC module according to the required voltage and current.
Switching power supply is the use of modern power electronics technology to control the switch on and off the time ratio, to maintain a stable output voltage of a power supply, switching power supply generally by the pulse width modulation (PWM) control IC and MOSFET composition. With the power electronics technology development and innovation, making switching power supply technology is constantly innovating. At present, the switching power supply to small, lightweight and efficient features are widely used almost all of the electronic equipment, electronic information industry is the rapid development of an indispensable power supply.
DC circuit using the transformer, first of all to DC into AC (switch conversion), that is, with switching power supply. For switching power supplies, it is recommended to purchase finished DC-DC modules. Select the appropriate DC-DC module according to the required voltage and current.