The 270V DC voltage regulator utilizes voltage mode PWM control and IPM high-frequency full-bridge conversion technology, featuring strong overcurrent capability and low output ripple.
Compact, lightweight, low-noise, and easy to operate.
Performance Features:
1. Employing high-frequency PWM and IPM full-bridge conversion technology, achieving up to 85% efficiency
Excellent output stability: Source voltage effect ≤0.5%, Load effect ≤0.5%
3. Output ripple is less than ≤1%
4. Comprehensive protection features ensure the normal operation of power equipment and the safety of loads.
5. 10-turn voltage adjustable potentiometer, adjustable range: 0V to 300V
6. 10-turn current adjustment potentiometer, capable of limiting the output current value to vary between 30% and 105% of the rated value in case of short circuit and overload.
7. Current Output Customization Range: 50A - 500A
8. LED voltage and current digital display, easy start/stop operation
Applicable Occasions:
Aircraft and Onboard Equipment Startup and Testing
Manufacturing, inspection, and maintenance of radar, navigation, and other aviation electronic equipment, as well as on-site repairs and maintenance for aircraft
Aircraft Simulation Testing
Aerospace, vehicle, ship, and other specialized DC testing and power supply applications, as well as any other situations requiring DC power.
Standard of Execution:
GJB 181A-2003 "Aircraft Power Supply Characteristics"
GJB 572-88 Specifications for Characteristics and General Requirements of Aircraft Ground Power Supply
MH/T 6018-1999 "Ground Static Power"
28V Aviation DC Power Supply Technical Appendix:
| Model | RAD28-______ |
| Output Current | Rated 50A-500A (customizable according to customer requirements) for unattended 24/7 long-term operation |
| Peak Current | Customized to Customer's Specifications |
| Circuit topology structure | SPWM/IGBT full-bridge circuit |
| Dynamic Properties | Overshoot and recovery time meet the requirements of GJB572 specifications. |
| Input Method | 220V±15%/380V±15% 50HZ±5HZ |
| Output Voltage | 270V/DC (adjustable range 0-300V) |
| Load Regulation | ±0.5%FS |
| Wavy Voltage | ≤1% |
| Power Voltage Stability Ratio | ±0.5%FS |
| Power Regulation Rate | ±0.5%FS |
| Load Adjustment Rate | ±1%FS |
| Display Control Method | LCD touch screen display, with both remote and local control options |
| Voltage Display Accuracy | ±1%FS |
| Current Display Accuracy | ±2%FS |
| Protection Method | Phase Loss, Overvoltage, Undervoltage, and Reverse Flow Protection Overvoltage, undervoltage, short circuit, current limiting, inverter overcurrent, internal overheating |
| Average Repair Time | ＜20 minutes |
| Overall Equipment Efficiency | 90% |
| In-and-out line method | Power side in/out cable |
| Noise | ≤65dB at 1 meter from the cabinet |
| Insulation resistance, voltage resistance | 20 MΩ, 1800V/AC, 1M1N |
| Airflow direction for heat dissipation | Forced air-cooling, front and side exhaust, back intake |
| Application Environment | Temperature -25-65℃; Humidity 0-90% non-condensing; Corrosion and acid-base resistant treatment |
