Excuse me, people who knowledge the electronics and hardware, can you say a model of such device:
A thing which would allow to pass current from an electricity input (actually it's a computer 12 V unit, it allows anything 0-40A), and would be PWM-(Arduino-)controllable and let pass through itself 10 A. The current needs to be direct (and not waste as much heat as linear FET mode - a "switching" unit, that is). I know a FET in switching mode can be used to produce PWM-modulated voltage, and can be as powerful as 10 A, but the FET makes the voltage also PWM-shaped. I need direct voltage, but through a PWM-controllable device.
Do they exist? I watched about buck converters, rectifiers, operational amplifiers, PWM buck converters, voltage regulators, can't find such a class of devices. Switching power suppliers have a PWM, but that's inside them, to rectify voltage. I don't know how to attach it to the external PWM. In other regulators, there are voltage selecting resistors. But only resistors.
I also know that a "LRC circuit" could rectify a powerful PWM-electricity (FET-generated), but i can't assemble such a thing. I need a module.
For example, the nearest module i got to is:
www.robotshop.com/en/10a-dc-motor-driver-arduino-shield.htmlBut i don't know yet about it. Does it produce straight voltage to motors?
To generalize a little, i need either voltage changing, or current changing, that's to control a thermoelectric plate. But still it has to be changable by 5 V PWM).