Input Current Controller PCB Bench Test

This is a PCB version of the input current controller. It is a buck converter using Average Current Mode Control to control the current being drawn from the turbine (output current from the turbine / input current to the controller). The idea is to measure the RPM of the turbine using one leg of the PMA just before the rectifier and then program the controller to draw a current that is proportional to the square of the RPM. This is not Maximum Power Point Tracking, but it should load the wind turbine in a way that keeps it near its peak power production. This is an implementation of Lloyd Dixon's paper on Average Current Mode Control. The pulse width modulation is generated using a TL494 running at approx. 100 kHz. Calculations are made using an ATTiny85. The turbine speed is sensed using an LM2907 frequency to voltage converter. The n-channel MOSFET is driven using a high side driver, and the current is sensed using a 0.01 ohm series resistor and a high side current monitor with a gain of 20.