HV POWER SUPPLY MODEL 1040

This little power supply was a Build-to-Schematic-Parts List & Test Procedure, for the FAA. It is part of a display console used by domestic Air Traffic Controllers. Acceptance Testing consisted of dropping it into a system. SCE reversed engineered the transformer which carried only a TI number for which no information was available.

Topology is conventional: a self oscillating push-pull converter drives a voltage quadruple to provide either 3.5KV or 4.5KV output (depending on usage). Operating frequency is 20KHz. The unit is full militarized design and construction including a MIL-T-27 transformer.

SPECIFICATIONS

Electrical

Input:

• Voltage 24VDC +15%
• Current 175mA/350mA

Output:

• Voltage 3.0KV +300V (adjustable)
• 4.5KV +400V (adjustable)
• Current 250mAmps
• Regulation .5%
• Ripple 1V p-p

Test Points

• Voltage Output Voltage /1000 +5%
• Current 1:1 +2%

Protection

Outputs will withstand indefinite short circuit.

Environmental

• Operating Temperature 0ºC to 71ºC
• Humidity 0 - 100%, non-condensing
• Shock 15g
• Vibration 5g
• Altitude to 10000 ft.

Construction: Case Formed aluminum (Zero box)

• Size 7 1/8" L x 4 3/8"W x 2 . 1/4H
• Weight 22 oz.

Connectors

• HV Reynolds 167-2263
• LV MS3112 series