Some dc dc converters for photovoltaic applications require that the input voltage be controlled while the output voltage is constant.
Variable output voltage dc dc converter.
The vtc180 series of voltage converters are variable duty cycle switching power supplies.
They can be configured to run from a 24v 32v 48v or 72 vdc power systems to provide output voltages as shown below.
12 24v to 5v 3a dc dc converter wide input voltage from 10 to 30v stable output voltage is 5v 100 full rated power 100 full stable output current 100 burn in test typical efficiency is 95 waterproof sealed cooling by free air convection surface mountable 1 year warranty over current over voltage protections over temperature protections according to.
A sepic is essentially a boost converter followed by an inverted buck boost converter therefore it is similar to a.
The vtc180 series voltage converter features reverse input.
Also check other variable power supply circuits.
One of these modules can easily be connected to the output of a dc bench supply or even a salvaged.
0 24v 3a variable power supply using lm338 and lm317 variable voltage regulator circuit.
The single ended primary inductor converter sepic is a type of dc dc converter that allows the electrical potential at its output to be greater than less than or equal to that at its input the output of the sepic is controlled by the duty cycle of the control switch s1.
A quick and easy way to get variable voltage from a fixed voltage dc power supply is to use a commercially available adjustable voltage converter module.
I have been looking at dc dc converters but have found out that they either step up or step down but i have not been able to find one which will take a variable input voltage and still maintain a constant 12vdc output if the input voltage is higher or lower than the output voltage.
This control is not so obvious and requires converter.
I need to be able to cover a minimum of 30w 12vdc for the output.
Desired output voltage can be generated by changing the values of r1 and r2.
This is a convenient and inexpensive solution for powering electronics projects.
Dc dc converters regulate the output voltage using a complex high frequency switching technique that employs pulse width modulation and feedback.
So this is how this small circuit can be used variable output dc dc converter.
Dc dc converters are available at mouser electronics from industry leading manufacturers mouser is an authorized distributor for many dc dc converter manufacturers including abb cui inc mean well murata recom tdk lambda texas instruments traco vicor xp power more.