SEQ 4 - SMD Sequenzsteuerung
SEQ 4 - SMD Sequenzsteuerung Blockdiagramm / Block diagram Schaltzeit (Diagramm) / Switching delay (diagram)

SEQ 4, SMD sequence controller

max. 18 A • +12 ... 32 V DC
This sequence controller was especially developed for power amplifiers with a supply voltage of 26 ... 32 V.

net: 46,22
incl. 19% Vat. plus shipping
Available from stock
Supply voltage12 ... 32 V DC
Control Output PAmax. 18 A
Control output for antenna relaymax. 4 A (switched to GND)
Switching delaytyp. 100 ... 150 ms
Many coaxial relays have a too low isolation between the ports during the change-over. If the power amplifier (in a transmit-receive system) is switched too early, this may lead to damage or destruction of the input transistor in the preamplifier or converter.
With a sequence controller, this trouble can be avoided. The sequence controller provides a control signal for the coaxial relay and it switches the voltage supply for the power amplifier. There is a time delay between the two signals to guarantee safe switching.
  • Control circuit to sequence the switching of power amplifiers and coaxial relays in transmit-receive systems. It can be used with transverters of the MKU-series by DB6NT
  • Suitable for LD-MOSFET power ampllifiers with 26 ... 32 V supply voltage