How to constant voltage switching power supply into a constant current, how to rectification ?
The easiest way to add resistance according to load
You give specific parameters, I give you the device model and practical circuit diagram (provided that the output current can not be too large, the load impedance can not be too high).
In fact, from the control point of view, the constant current source and constant pressure source is the same, but the sampling point is different; also said that the control object or the target is different, and the constant pressure source to constant current source only need to pass the current Sampling Resistor Sampling Current
Can not be converted, because the work of different ways to work the object is also different.
Due to constant voltage source and constant current source has different circuit characteristics, it can not be replaced with each other. The respective circuit characteristics are as follows:
Constant voltage power supply (regulated power supply): can be a constant output voltage to the load power supply. The ideal internal resistance of the constant voltage power supply is zero and can not be shorted when used.
Constant current power supply (constant current source): A power supply that can output a constant current to the load. The ideal internal resistance of the constant current power supply is infinite and can not be opened when used.
