Product Name: DC regulated power supply
Product model: dcks23-28500c

This series of products are dc28v DC power supply specially designed and manufactured for aviation and military electronic and electrical equipment with high frequency power electronic conversion technology, which can be used for aircraft and airborne equipment, aerospace and navigation

And other military electronic equipment, as well as other occasions requiring 28V DC power supply. This series of products meet the national military standard gjb181 - aircraft power supply characteristics and requirements for electrical equipment, gjb572 - aircraft ground

The power supply characteristics and general requirements of surface power supply are the replacement products of DC unit and SCR rectifier power supply.

1. Input:



Input voltage range: 115V / 200V ± 15%; 220V / 380V ± 15%



Input frequency range: 400 Hz ± 10 Hz; 50Hz ± 5 Hz



2. Output:



Rated voltage: DC 28V



Rated current: 500A



Voltage regulation range: 1V ~ 34V



Adjustment resolution: 0.1V ～ 1V



Source adjustment rate: ≤± 0.5% FS



Load adjustment rate: ≤± 1% FS



Overall efficiency: ＞ 85%



Ripple content: 100mV (RMS)



Dynamic characteristics: the overshoot and recovery time characteristics meet the requirements of gjb572.



3. General requirements



Working temperature: - 25 ～ 50 ℃



Storage temperature: - 40 ～ 55 ℃



Humidity: ≤ 90%



Altitude: ≤ 2000m



Cooling mode: forced air cooling



Noise: 65dB



Protection class: IP20



4. Protection function



4.1 output overvoltage protection:



When the output voltage exceeds 10% of the upper limit value of the regulation range, the over-voltage protection circuit is protected immediately and the power output is turned off.



4.2 internal overheating protection:



During the operation of the power supply, when the radiator temperature of the power module exceeds 85 ℃, the overheating circuit acts immediately and turns off the power output.



4.3 input over and under voltage protection:



During the operation of the power supply, when the voltage fluctuation range of the power grid exceeds ± 15% of the allowable fluctuation range of the power supply, the input overvoltage and undervoltage circuit will act immediately and turn off the power output.