In summary, optocouplers, like IGBTs, optically transmit a signal while electrically isolating the transmit and receive side, protecting sensitive electronics from high voltage spikes. IGBT drivers, such as Vishay’s VO3120 and VO3150, offer high switching speeds and high current handling capabilities while providing electrical isolation between the low voltage driver circuitry and a potentially noisy load. And, they are pin compatible to the industries leading IGBT drivers.