In the lower electrical diagram, the 220V power supply is biased by the load RL, R1, D1~D4, ZD1 for Q4 and Q3 in the positive and negative half cycles; and the power supply is provided by the optical coupler Q1 via R3 and D5~D8. When the current level TTL circuit outputs a high level signal, the photocoupler is turned on during the positive half cycle of the mains, so a voltage drop is generated across R5, triggering the SCR to conduct, and the load RL is energized. The entire circuit functions like a relay, but does not generate a reverse induced voltage, which avoids the possibility of damage to the load caused by high back pressure breakdown. C1 and R6 are pulse absorbing elements, and R3 acts as a current limiting.
Inductive analog relay diagram
To avoid the RL being an inductive load, the voltage of the thyristor and the 90° phase generated by the optocoupler power supply, the power supply of the optocoupler in the circuit is taken from the anode of the SCR and not directly from the mains supply.
POWER-D & COMBO-D D-SUB CONNECTORS
The ANTENK POWER-D & Combo-D mixed contact d-sub connectors are designed for rugged / robust applications where both power & signal are required from a single connection. Featuring [Solid-Pin" machined contacts, these connectors offer high reliability performance for the most challenging design applications.
Combination D-SUB Connectors provide the ideal solution for applications to require power, signal and coaxial connections within one connector. This series of connectors achieves space saving on PCB`s and I O designs.
Within this product family are various pin out configurations possible. Almost endless selections can be created mixing power, signal and coaxial contacts.
Power contacts from 10 amp to 40 amp current handling. Signal contacts in various styles complete the product offering.
Industry standard terminations types, solder cup, PCB contacts in straight and angled pin configurations. Crimp types and wire wrap contacts.
POWER-D & COMBO-D D-SUB CONNECTORS characteristics:â– Space savings on the PCB
â– Different wire terminations are possible in a single connector
â– Cost savings - mixed layout
â– Insertable and removable coaxial, power, high voltage and signal contacts
â– Precision machined contacts
â– Various quality classes are available
â– Wide product range
A wide range of standard pin configurations fully loaded with signal contacts are available. Specially configured contacts with power, coaxial and signal contacts can be constructed.
D sub power connector Applications
Communications
Base Stations
Switching
Transmission
Asymmetric Digital Subscriber Line (ADSL)
Data
Desktops/ Laptops
UPS, Storage systems
Routers, Servers
Printers, Copiers
Consumers
Consumer Electronics
Set-top-boxes
Energy meters
Industrial & Instrumentation
Robotics
Control Drives
Power Supplies
Medical Instruments
Test Equipments
POS & Handheld terminals
Renewable Energy
Surveillance Camera
Office Automation
Parking Meters
Gaming Machines
RJ45 3U Gold,Gold Flash Plated,8P8C with Shield,Shield with EMI
ShenZhen Antenk Electronics Co,Ltd , https://www.antenksocket.com