Our photovoltaic relays (PVR) are remotely controlled switches (on/off) with complete galvanic isolation from input to output. No power supply is needed on the output.
The operating parameters of PVRs are ideal for switching low-level signal loads in instrumentation and data acquisition to medium power loads in industrial controls and process automation, i.e. from microvolts and microamps to 400V (AC peak or DC) and up to 6.0A of load current at a contact resistance as low as 15 milliohms. PVRs utilize our power MOSFETs or IGBTs as the output switches, driven by an integrated circuit photovoltaic generator. The output switch is controlled by radiation from a GaAlAs light emitting diode (LED), which is optically isolated from the photovoltaic generator. This isolation provides users with protection from electrical shocks and protects electronics (such as microprocessors) from damage from high-voltage spikes.