1) TTL-> relays
2) TTL-> relay (reverse logic)
3) TTL-> solid state relay
What are the relationships and differences between the three relays?
TTL level signal control relay.
1) Ordinary
2) relay or relay, no difference. Connection is different, so the opposite is true
3) using a solid state relay. And ordinary relay function principle, the shape is not the same, issued by the electromagnetic interference is very small (the biggest difference), but the current is not too much heat will be more trouble. Life longer than ordinary relays
Is the TTL level signal control relay. Is a kind of control relay.
Control relay is an automatic electrical appliances, it is suitable for long-distance connection and breaking off, DC small capacity control circuit, and in the electric drive system for control, protection and signal conversion. The input of the control relay is usually the current, voltage and other electricity, it can be temperature, pressure, speed and other non-power, the output is the contact action when the electrical signal or output circuit parameters change. Relay is characterized by a change in its input to a certain program, the output will be a step change.
