This power supply was designed as a drop-in replacement for the Raytheon High Voltage A2 module in the standard FAA Air Traffic Controller Display Console. The circuit is a conventional self-oscillating push-pull converter. The high voltage transformer output is voltage multiplied by 12 to produce 12KV. A divided-down feedback voltage controls a linear pass transistor which feeds the converter to maintain the output at 12KV. A separate focus multiplier and filter generate -2 KV which is shunt stabilized to -1200V. A grid voltage of 500V at low current is generated from the feedback string.
This Air Traffic Control Console is used throughout the world; SCE has provided well over 1000 replacement units.
SPECIFICATIONS
Electrical
Input:
- Voltage +22V, +100VDC nominal. Input voltages may vary +20% without affecting output
- Current 300mA nominal at +22V, with an internal current limit at 390mA
Output:
Anode:
- Voltage 12KV, adjustable from 11 to 13KV
- Current 150µA maximum
- Regulation +1% load, +1% line
- Ripple 12V p-p, maximum
Focus:
- Voltage -1200V
- Current 20µA maximum
- Regulation +1% load, +1 line
- Ripple 1V p-p, maximum
Focus:
- Voltage 400-600V (adjustable)
Environmental
- Operating Temperature 0ºC to 71ºC
- Humidity To 100% (fully sealed construction)
- Shock 20 G’s
- Vibration 10 G
- Altitude To 100,000 ft.
Construction: Welded steel case and cover
- Size 3 ¾" x 5" x 2 ¾"
- Weight 4 lbs., max
- Connectors HV - Flying lead with J22 Anode Cup
- LV - Hermetic feedthrough solder terminals
- Marking Photo anodized aluminum label
- Potting Vacuum filled silicone