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All colleagues unite and focus their efforts to write a new chapter of development700W Sine Wave Inverter Power Supply Board
所属分类： Company News
发布时间：2022-08-03
700W Sine Wave Inverter Power Supply Board
I. Input Characteristics:
1-1. Rated input voltage: 22.2 VDC
1-2. Input voltage range: 18–26 VDC
1-3. Low-Voltage Shutdown: 18±0.4 VDC
1-4. Low-Voltage Recovery: No
1-5. High-Voltage Cutout: 26 ± 0.4 VDC
1-6. High-Voltage Restart: 25.5 ± 0.4 VDC
1-7. No-load current: ≤0.4A
II. Output Characteristics:
2-1. AC voltage range: 110 VAC ± 3 V (under no-load conditions)
AC voltage range: 110 VAC ± 3 V (at low voltage, 20 V, power output is reduced; at DC 18 V, the AC voltage must not fall below 100 V; the maximum AC voltage must not exceed 113 V)
2-2. AC Output Frequency: 60 Hz ± 1%
2-3. Continuous output power: 700 W, sustained at 700 W under resistive load with a power factor of ≥0.8;
At PF = 0.5, with a load of ≥350 W, the unit will trip if the active power exceeds 550 W or the apparent power exceeds 800 W. During prolonged operation at high power, the upstream stage will trigger thermal protection at 95 °C ± 5 °C, while the downstream stage will do so at 85 °C ± 5 °C.
2-4. Overload Protection: 750W–810W
2-5. Peak Output Power: 1400 W (pure resistive load), sustained for 3–5 seconds, then shuts off.
2-6. Output Voltage Waveform: Pure Sine Wave
2-7. Total Harmonic Distortion: ≤5%
2-8. Efficiency: ≥88%
2-9. Output Short-Circuit Protection: Provides protection; after the short circuit is cleared, the power must be restarted to resume operation.
2-10. Overtemperature Protection: 95±5℃ for DC terminals, 85±5℃ for AC terminals.
2-11. When the load power reaches 50% of the rated power or the temperature reaches 40°C, the fan is activated to initiate cooling; when both conditions are absent, the fan ceases operation.
III. Other Features:
3-1. Description
Fault: Blue LED
3-2. Operating temperature range: -20 to 60°C
3-3. Storage temperature range: -20 to 55°C
3-4. Operating relative humidity: 10–90%
3-5. Storage relative humidity: 5–95%
3-6. Dimensions: L224xW165xH54mm
3-7. All outputs: Contact discharge > 4 kV, no system crashes or reboots; all outputs: Air discharge > 8 kV, no system crashes or reboots;
4. High-Voltage Testing
The high‑voltage test shall meet the requirements specified in the table below. All products are tested online, with each test maintained for at least 5 seconds, and no failures shall occur.
ITEM SPECIFICATION REMARK
Input—Output Primary to Secondary 3000Vac/5mA/60s No arcing
Input—Ground Primary to P.G No breakdown No broken
Output--Location Secondary to P.G
V. Insulation Resistance
ITEM SPECIFICATION REMARK
Input–Output Primary to Secondary >10 MΩ; DC 500 V
Input—Ground Primary to P.G
6. AC Leakage Current:
When the output voltage is 110 Vac, the maximum leakage current is 0.25 mA.
VII. Reliability Requirements:
8-1. Aging
The product must undergo a burn-in test for 2–4 hours in an environment of 40°C ± 5°C and under 100% rated load.
8-2. Estimation of Mean Time Between Failures
Mean Time Between Failures: 30,000 hours, under ambient conditions of 25°C and at rated input and full load.
