BAP-1367 Transfer Switch Board

Two Source, Single Phase AC Transfer Switch Driver

 

 DOWNLOAD BAP-1367 DATASHEET

 AP-1367 Photo

FEATURES INCLUDE
• Includes Four Individual SCR Gate Drivers
• Single 24VDC Input
• Opto-Isolated Customer Interface
• SCR Short Circuit Detection Option
• On-Board Snubber Option
• Rugged Design (Mil-STD Shock & Vibe)
• 60 or 400 Hz Operation

APPLICATIONS
• AC Transfer Switches
• Heater Controls
• Solid State AC Switches
• Electro Mechanical
• Switch Replacements

The AP-1367 Quad SCR Gate Driver provides complete gate drive control for four thyristors, configured individually or in anti-parallel as dual AC Switches. This driver accepts logic level control inputs and provides isolated DC drive current for each individual SCR.

Optional short circuit detection and device snubber circuits are provided on-board.

High CMRR optocouplers provide isolation between the customer supplied logic level control signals and the SCR gate drives.

The AP-1367 board accepts a single 24VDC power input and generates four individually isolated power supplies providing the required output gate drives.

The PCB assembly measures 5.5” X 12.5”.
 


Electircal Specifications
Absolute Maximum Ratings, Ta = 25°C unless otherwise specified
Parameter Typical Max Min
TOP - Operating Temperature (°C) - 85 -10
TOS - Storage Temperature (°C) - 125 -20
VISO Electrical Isolation (VRMS for 1 min.) - 2500 -
 
Electrical Characteristics, Ta = 25°C unless otherwise specified
Parameter Typical Max Min
VCTL Input Control Voltage (Volts DC) 5 7 4
ICTL Input Control Current (mA) 15 20 10
VGATE Open Circuit GATE Voltage (Volts DC) 12    
IGATE Continuous Output GATE Current (mA) 500    
TP – Propagation Delay Time (uSec)  1    
a Duty Cycle (%)   Continuous  
 
Electrical Connections
 
J1 – INPUT POWER
Pin No. Signal Name Function
1 N.C. No Connection
2 N.C. No Connection
3 +25 VDC +24 VDC Power Input
4 GND Power Ground
5 N.C. No Connection
6 N.C. No Connection
 
J2 – LOGIC & OPTION POWER
Pin No. Signal Name Function
1 +15 VDC +15 VDC  Power Input –for Short Cicuit Detection Option
2 15 VDC RETURN 15 VDC Ground Return
3 -15 VDC -15 VDC  Power Input –for Short Cicuit Detection Option
4 15 VDC RETURN 15 VDC Ground Return
5 LCUR+ +Load Current Feedback
6 LCUR- -Load Current Feedback
7 +5 VDC +5 VDC  Logic Power Input
8 LOGIC GROUND 5 VDC Logic Ground Return
 
J3 – SCR CONTROL INPUT
Pin No. Signal Name Function  
1 SCR1 CTL (+) SCR1 Control Signal (0V = Off / 5V = On)    SW1P+ 
2 SCR1 CTL RET (-) SCR1 Control Return SW1P-
3 SCR2 CTL (+) SCR2 Control Signal (0V = Off / 5V = On) SW1N+
4 SCR2 CTL RET (-) SCR2 Control Return SW1N-
5 SCR3 CTL (+) SCR3 Control Signal (0V = Off / 5V = On) SW2P+ 
6 SCR3 CTL RET (-) SCR3 Control Return SW2P-
7 SCR4 CTL (+) SCR4 Control Signal (0V = Off / 5V = On) SW2N+
8 SCR4 CTL RET (-) SCR4 Control Return SW2N-
 
J4 – FAULT STATUS OUTPUT
Pin No. Signal Name Function  
1 SW1 SHORTED (+) SW1 Short Detection Signal (0V = OK / 5V = Shorted Fault) SW1P+ 
2 LOGIC GROUND 5 VDC Logic Ground Return SW1P-
3 SW2 SHORTED (+) SW2 Short Detection Signal (0V = OK / 5V = Shorted Fault) SW1N+
4 LOGIC GROUND 5 VDC Logic Ground Return SW1N-
5 - 14 N.C. No Connection  
 
J7 – CURRENT SENSE OPTION 
Pin No. Signal Name Function
1 +15 VDC +15 VDC  Power Output – to external Current Sensor - Optional
2 -15 VDC -15 VDC  Power Output – to external Current Sensor - Optional
3 I FDBK Current Sense Feedback Signal
4 15 VDC RETURN 15 VDC Ground Return
 
J8 – J9 – SCR1 & SCR2 GATE DRIVE
Pin No. Signal Name Function
J8-1 SCR1-K SCR1 - CATHODE
J8-2 SCR1-G SCR1 - GATE
J9-1 SCR1-K SCR2 - CATHODE
J9-2 SCR1-G SCR2 - GATE
 
J10 – J11 – SCR3 & SCR4 GATE DRIVE
Pin No. Signal Name Function
J10-1 SCR1-K SCR3 - CATHODE
J10-2 SCR1-G SCR3 - GATE
J11-1 SCR1-K SCR4 - CATHODE
J11-2 SCR1-G SCR4 - GATE
 
J12 & J13 SNUBBER CONNECT OPTION
Pin No. Signal Name Function
J12-1 TO J13-1 R1-C1 R1-C1 Snubber Connection
J12-5 TO J13-5 R2-C2 R2-C2 Snubber Connection
J12-8 TO J13-8 R3-C3 R3-C3 Snubber Connection
J12-2,3,4,6,7 and 9 N.C. No Connection
 
AP-1367
 

Mechanical Assembly
 
AP-1367 Mechanical Assembly
 

Maximum Board Height::

• 1.50”

Mating Connectors:

• J1 - MOLEX P/N 15-97-5061
• J2 & J3 - FCI P/N 71600-008
• J4 - FCI P/N 71600-014
• J5 & J7 - MOLEX P/N 15-97-5041
• J8 – J11 - MOLEX P/N 15-97-5021
• J12 – J13 -MOLEX P/N 15-97-5101

 


Typical Transfer Switch Shown complete with AP-1367 Driver mounted above Quad SCR Assembly

 

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