Solid State Switch Circuit. Usb control api for microsoft windows net activex dlls usb control via direct programming linux. An ssr s output type ac dc or ac dc is determined by the type of switching device.
The push pull type spdt ssr switch consists of two leds d1 d2 and two photo triacs triac1 triac2. The world s first truly solid state circuit breaker for the commercial and industrial building markets. Spdt dpdt transfer sp4t sp6t sp8t and sp10t mechanical and solid state rf switches for 50 ohm and 75 ohm systems spanning dc to 50 ghz.
Ssr or solid state relays are high power electrical switches that work without involving mechanical contacts instead they use solid state semiconductors like mosfets for switching an electrical load.
The common circuit diagram of the push pull spdt ssr relay as shown below as shown in figure 7. Ssrs can be used for operating high power loads through a small input trigger voltage with negligible current. An ssr can be designed to switch a dc or an ac load and some types are capable of switching both ac and dc loads. That is pictured above driving an led.
