28.5V Linear DC Power Supply

The 28.5V linear DC power supply employs floating and pre-stabilization technologies; it is a 28.5V linear DC power supply specifically designed and manufactured for aviation and military electronic and electrical equipment, serving as a replacement for thyristor-based DC power supplies. It features excellent constant current output capabilities, is resistant to short circuits, allows for adjustable constant current values, and enables adjustment of the maximum output voltage during constant current operation. Additionally, it offers advantages such as high reliability, superior stability, low ripple, compact size, lightweight construction, high efficiency, an aesthetically pleasing appearance, and advanced manufacturing processes.

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Category: DC Power Supply Series

Product Features

Input voltage: 220 Vac ±10% or 380 Vac ±10%
Output voltage: 28.5V
Output current: 0–Nominal value (adjustable)
DC output power: 30W–200kW
Source effect: ≤1×10⁻³ + 3 mA
Load effect: ≤1×10⁻³ + 5 mA
Cycle and random offset: CC: ≤10 mA; Ripple: <1 mA
The 28.5V linear DC power supply is suitable for applications such as precision instrumentation, equipment testing, and aging tests.
Product advantages: voltage and current can be set over the entire range; high accuracy, low ripple, and high reliability.
Product drawbacks: large size, high price

Technical Parameters

name of a part

28.5V DC power supply

output capacity

10A

20A

30A

50A

100A

200A

300A

500A

1KA

2KA

5KA

Circuit Configuration

linear

import

number of phases

Single-phase or three-phase.

voltage

220V±10%

380V±10%-

frequency

50 Hz ± 5%

output

voltage

0–35 V continuously adjustable

Current

0–Nominal value, configurable

ripple wave

≤0.05%+ 10mv (r.m.s).

voltage regulation

CV≤+0.01%+ 30mA.

load regulation

CV≤+0.01%+ 50mA

defencive function

Overvoltage, overcurrent, short circuit.

show

voltage

4.5 ± 1% (±1%; 2-digit precision).

Current

4.5 ± 1% (±1% of full scale; 2-digit precision).

input mode 。

wiring terminal 。

Output method

wiring terminal 。

structural style 。

table model

Cabinet-type

work environment 。

Environmental temperature: 0–40 °C; relative humidity: 20–80%.

Application Industries

Aviation Ground Support

Suitable for aircraft ground power systems and aviation maintenance operations.

Onshore Power Supply

Shore power supplies electricity to docked ships from land grids, replacing on-board generators to cut fuel consumption and emissions.

Variable Frequency

Variable frequency power supply outputs adjustable voltage and frequency. It simulates global grid power for testing electrical equipment.

Military & Defense

Applicable to military electronic systems and specialized defense equipment testing.

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28.5V Linear DC Power Supply

Product Features

Technical Parameters