AP-1106 SCR Gate Drive Board
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The AP-1106 provides a complete, field-tested turnkey solution to drive a single large area thyristor device. This driver accepts a logic level control input and provides an isolated DC drive current into the SCR gate, able to hard drive up to 100mm size devices. The output gate drive signal is applied thru a pulse forming network that creates a fast rising leading edge current pulse (typically 5A/µSec) into the SCR gate, maximizing the device di/dt capability and insuring proper SCR turn on. The on board 115VAC power supply provides all needed power to drive the SCR and provides transformer isolation between the AC input and the SCR being driven. A high speed optocoupler provides isolation between the customer supplied logic level signal and the SCR. LED indicators display POWER ON and SCR ON status. The small footprint PCB assembly measures only 3.0” X 5.0”.
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| Absolute Maximum Ratings, Ta = 25°C unless otherwise specified |
| Parameter |
Typical |
Max |
Min |
| TOP - Operating Temperature |
(°C) |
- |
70 |
-10 |
| TOS - Storage Temperature |
(°C) |
- |
85 |
-20 |
| VISO - Electrical Isolation |
(VRMS for 1 min.) |
- |
2500 |
- |
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| Electrical Characteristics, Ta = 25°C unless otherwise specified |
| Parameter |
Typical |
Max |
Min |
| VCTL – Input Control Voltage |
(Volts DC) |
12 |
24 |
10 |
| ICTL – Input Control Current |
(mA) |
20 |
40 |
16 |
| VGATE – Open Circuit GATE Voltage |
(Volts DC) |
16 |
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| IGATE – Continuous Output GATE Current |
(mA) |
500 |
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| IGPK – Peak Output GATE Current |
(Amperes) |
8 |
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| TP – Propagation Delay Time |
(µSec) |
1 |
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| a – Duty Cycle |
(%) |
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Continuous |
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| J1 – INPUT POWER |
| Pin No. |
Signal Name |
Function |
| 1 |
AC HOT |
115 VAC-L1 Input – 2A Fuse on board |
| 2 |
AC NEUTRAL |
115 VAC-L2 Input |
| 3 |
AC CHASSIS GND |
115 VAC Chassis Ground |
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| J2 – SCR DRIVE OUTPUT |
| Pin No. |
Signal Name |
Function |
| 1 |
SCR-GATE |
GATE Drive Current High |
| 2 |
SCR-CATHODE |
GATE Drive Current Return |
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| J3 - CONTROL INPUT |
| Pin No. |
Signal Name |
Function |
| 1 |
CTL (+) |
SCR Control Signal (0V = Off / 12V = On) |
| 2 |
CTL RET (-) |
SCR Control Return |
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Mating Connectors:
• J1 - 640427-3
• J2 - 640427-2
• J3 - 640427-2
• AMP MTA.156” IDC Conn. or equivalent
Maximum Board Height:
• 1.5”
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