A solid-state relay is an ON-OFF control device in which the load current is conducted by one or
more semiconductors – e.g., a power transistor, an SCR, or a TRIAC. It is an electronic switch, which, unlike an electromechanical relay, contains no moving parts. The following schematic shows the Hybrid Solid State Relay SSR circuit diagram.
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Hybrid Solid State Relay SSR Circuit Diagram
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LM555 Timer Internal Circuit Block Diagram and Schematic
The LM555 is a highly stable controller capable of producing accurate timing pulses. This device features: Adjustable Duty Cycle, Turn off Time Less Than 2?Sec, Temperature Stability of 0.005%/°C. The above schematic shows the LM555 Timer Internal Circuit Block Diagram. The Absolute Maximum Ratings (TA = 25°C) of LM555 are as follows.
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