Constant Current High Voltage Power Supply

Voltage causes a current not the other way around so to make a device that provides a constant current no matter the load we have to use negative feedback and convert the current flowing through our load into a voltage.

Constant current high voltage power supply.

Conversely the output of an unregulated power supply can change significantly when its input voltage or load current changes. Input voltage 12v dc. The regulated current is set by an analog voltage on the ctrl pins an. This power supply has following features.

Triode for alternating current triac dimming is used to control high voltage dimmable power supplies such as magnitude dimmable power supplies these dimmable power supplies work by varying the power on the ac input side of the power supply by means of a triac dimmer. I easily get continuously adjustable output voltage 1 30v and current 0 6a which is pretty enough for circuit testing and other things i m also using 7805 voltage regulator ic for 5v constant voltage and current. The lt3741 and lt3741 1 are fixed frequency synchronous step down dc dc controllers designed to accurately regulate the output current at up to 20a. Constant voltage drivers switch this alternating current voltage vac to a low direct current voltage vdc.

Products with these current regulating devices might require a constant voltage power supply if they need a different operating voltage than what s supplied by the power source home vehicle etc. How does the power supply circuit work. In addition to the usual basic functions of a dc laboratory power supply such as precise adjustable voltage and current values overvoltage and overcurrent protection as well as automatic change between the modes cc constant current and cv constant voltage the dp ph series high voltage laboratory power supply can be connected via modern. This is the type of power that is typically output from your wall outlets around the home.

The average current mode controller will maintain inductor current regulation over a wide output voltage range of 0v to vin 2v. For example led light strips. Output voltage 1 30v continuously adjustable. Constant voltage power supplies can be used to power led products that have resistors or constant current drivers.

This change in power on the ac input side will vary the voltage on the dc output side and control the intensity. Accurate constant current constant voltage 20a power supply ensures safe charging of supercaps and li ion batteries. Power supplies are categorized in various ways including by functional features.