What is the current of the DC regulated power supply?
Under normal circumstances, low-voltage DC power supply current will change with the resistance changes. That is: the voltage must be, the current resistance with the resistance of the regular changes in the resistance. To adjust the current, the regulator circuit is generally designed to adjust the regulator circuit.
Sometimes, DC power supply output unchanged, with electrical resistance is small, and do not want the resistance flow through a lot of current, I used three methods commonly used, one with thyristor to adjust the circuit, through the control of thyristor The current is generally suitable for the current requirements of the current is not high resistance circuit; the second is to use the transistor to adjust the circuit, by adjusting the transistor base current to adjust the current through the transistor ce set. 500mA below the small current with a class of C9013 C8050 can be a large current available 3DD102c like the tube, the maximum current 5A, can also use other transistors, according to the actual needs of choice. The third is to use adjustable voltage integrated circuits, such as LM2576-ADJ, LM317 and so on. In fact, by adjusting the voltage to adjust the current.
DC regulated power supply current do not tune! Only regulator does not transfer flow!
DC constant current power supply voltage do not tune! Only flow regulator is not pressure!
Power supply, adjustable voltage or adjustable current, both adjustable variable load
