Contact
For General Information:
Toll Free: (800) AJPOWER
Local: (813) 996-2583
Fax: (813) 996-5037
For Sales:
nigel at ajpower.com
For Engineering:
tad at ajpower.com
Updates from AJ Power
250 Watt Power System
This Power Supply was design with weight and space available. AJPS believes this unit shows the complicated use of space and valuable design efforts it took to meet the customer’s objectives and specifications. This custom power supply has the ability to take in both universal AC power and a wide range of DC power and supply three different output voltages, one including battery charging.
We Can Customize to Suit Your Need
Contact us to discuss a solution for you or
email us directly to requst a quote.
Input Specifications
| Item | Unit of Measure | |
| Input Voltage Range AC | VAC | 90 to 264 VAC |
| Input Frequency | Hz | 40 to 63 Hz |
| Input Voltage Range DC | VDC | 18 to 48 VDC |
| Voltage Turn On | VDC | 18 VDC max |
| Under Voltage Turn Off | VDC | 16 VDC, ±5% |
Input Filter
| Item | Unit of Measure | |
| Input Surge Voltage, DC (100 ms) |
VDC | 80 VDC |
| Reflected Ripple Current (nominal Vin @ 100% load) | mA | 20 mA |
| Remote On/Off, DC/DC Converters | ||
| Input Current under Remote Off | mA | 1 mA, max |
| No Load Input Current DC/DC | mA | 1 mA, max |
Output Specifications
| Item | Unit of Measure | |
Output Voltage(s) (from AC & DC sources) |
VDC | V1: +24 Vdc V2: +5 Vdc V3 (Battery Charger): +36 - 39 Vdc |
| Reflected Ripple Current (nominal Vin @ 100% load) | % | -0,+1 % ±0.2 % |
| Remote On/Off, DC/DC Converters | % | -5 %, +9 % (nominal 5.0 V) |
Protection Specifications
| Item | Unit of Measure | |
| Current Limit | % | 130% |
| Short Circuit Protection | Continuous, Self Re-setting | |
| Over Temperature Protection (Base Plate Temp) | ºC | 110 ºC, Self Re-setting |
Physical Specifications
| Item | Unit of Measure | |
| Efficiency (Min @ 70% of full load) | % | 88 to 95% Typical |
| Switching Frequency (design dependent) | KHz | TBD KHz |
| AC Isolation Voltage (Input to Output) | V | 1500 V (if provided) |
| Isolation Resistance | Ω | 1 GΩ |
| Isolation Capacitance | uF | 0.01 uF |