miniElectronics

Hello, I am trying to design a solar tracker. Where it is used photodiodes. There are 2 diodes. And in sun they give a voltage of 2.1 volt. I will set it such if voltage from D1 is higher than D2 so it will be compared in some IC and sent out a signal so Motor1 will adjust it such as until the device is on correct position. Where a third diode D3 detects it is on correct position and then shut down the motor. And same if D1 is higher then D2 so it will turn on Motor2 and adjust until it comes on correct position and D3 detects and shutdown. Where i only need a IC which can accept 2 input voltage and 2 output voltage. And compares which one is higher and send signal only to output1 or output2. Thanks