3 1. Overview
1.1 Application Occasions
This high-voltage DC power supply is a custom-made special power supply, featuring small size, light weight, high efficiency, and built-in fan for heat dissipation. Its maximum operating efficiency is ≥97%. The power module adopts an aluminum shell design, which is lightweight, aesthetically pleasing, and waterproof, and can be used as a substitute for imported high-voltage DC module power supplies.
1.2 Product Features
- DC-DC isolated power converter: Converts the input 1400V DC power into 60V DC power in an isolated manner, with a peak output power of 30KW.
- High power density, small size, and light weight.
- Designed to meet power supply reliability requirements: Equipped with over/under-voltage protection for input, and over-voltage protection, current limiting, short-circuit protection, and over-temperature protection for output.
1.3 Product Photo
- Output +, Output +, Input
-
- Output, Output:
1.4 Main Product Specifications
| Input Voltage Range | Rated Output Voltage | Rated Output Power | Efficiency | Voltage Regulation Accuracy | Output Ripple and Noise |
|---|---|---|---|---|---|
| 1300~1400Vdc | 60±0.5Vdc | 24KW | ≥97% | ≤±1% | ≤±2%Vo |
4 2. Environmental Conditions
| Serial Number | Item | Technical Index | Unit | Remarks |
|---|---|---|---|---|
| 1 | Operating Temperature | -20℃~+35℃ | ℃ | Meets 24KW long-term operation requirements |
| 2 | Storage Temperature | -40℃~+80℃ | ℃ | / |
| 3 | Relative Humidity | ≤95 | % | No condensation (40℃±2℃) |
| 4 | Altitude | 0-3000 | m | |
| 5 | Atmospheric Pressure | 76~106 | Kpa | / |
| 6 | Heat Dissipation Method | Built-in Air Cooling | / | / |
5 3. Electrical Characteristics
3.1 Input Characteristics
| Serial Number | Item | Technical Requirement | Unit | Remarks |
|---|---|---|---|---|
| 1.1 | Rated Input Voltage | 1350 | Vdc | |
| 1.2 | Input Voltage Range | 1300~1400 | Vdc | |
| 1.3 | Maximum Input Current | 24 | A | Vin=1300Vdc, Po=30KW |
3.2 Output Characteristics
| Serial Number | Item | Technical Requirement | Unit | Remarks |
|---|---|---|---|---|
| 2.1 | Rated Output Voltage | 60 | Vdc | / |
| 2.2 | Output Voltage Range | 59.5~60.5 | Vdc | |
| 2.3 | Rated Output Current | 400 | A | / |
| 2.4 | Rated Output Power | 24000 | W | / |
| 2.5 | Peak Output Power | 30000 | W | |
| 2.6 | Output Efficiency | ≥97 | % | Vin=1350Vdc, load >50% |
| 2.7 | Voltage Regulation Accuracy | ±1 | % | / |
| 2.8 | Line Regulation | ±1 | % | / |
| 2.9 | Load Regulation | ±1 | % | / |
| 2.10 | Output Ripple and Noise | ≤700 | mVp-p | Bandwidth limited to 20MHz; 10uF electrolytic capacitor and 0.1uF film capacitor connected in parallel at the test terminal; rated load |
| 2.11 | Temperature Coefficient | ±0.02 | %/℃ | / |
| 2.12 | Output Rise Time | ≤1 | S | / |
| 2.13 | Power-on Output Delay | ≤5 | S | Rated input |
| 2.14 | Power-on/Power-off Overshoot Amplitude | △V: ≤±5 | % | / |
| 2.15 | Dynamic Response Overshoot | △V: ≤±5 | % | / |
| 2.16 | Dynamic Response Recovery Time | ≤2 | ms | 75%~50% load change at 25℃; 25%~50%~25% or 50%~ (remaining load change range to be supplemented) |
3.3 Protection Characteristics
| Serial Number | Item | Technical Requirement | Unit | Remarks |
|---|---|---|---|---|
| 3.1 | Input Under-voltage Protection | 1230~1270 | Vdc | Hysteresis greater than 10V |
| 3.2 | Input Under-voltage Recovery | 1270~1290 | Vdc | |
| 3.3 | Input Over-voltage Protection | 1430~1460 | Vdc | Hysteresis greater than 15V |
| 3.4 | Input Over-voltage Recovery | 1400~1430 | Vdc | |
| 3.5 | Output Over-voltage Protection | 62~65 | Vdc | Self-recoverable |
| 3.7 | Output Over-current Protection | 490~520 | A | Self-recoverable |
| 3.8 | Output Short-circuit Protection | No damage under long-term short-circuit | Self-recoverable | |
| 3.9 | Over-temperature Protection | When the detected enclosure temperature >50℃, current output starts to decrease; over-temperature protection is activated at 65℃, and recovery occurs at 55℃ | ℃ | Enclosure temperature |
6 4. Safety Characteristics
| Serial Number | Item | Test Condition | Remarks | |
|---|---|---|---|---|
| 1 | Dielectric Strength | Input to Output | 3000Vdc/10mA/1min | No arcing, no breakdown |
| Input to Enclosure | 2000Vdc/10mA/1min | |||
| Output to Enclosure | 1000Vdc/10mA/1min | |||
| 2 | Insulation Resistance | Input to Output | ≥10MΩ@500Vdc | Under normal atmospheric pressure, relative humidity of 90%, and test DC voltage of 500V |
| Input to Enclosure | ≥10MΩ@500Vdc | |||
| Output to Enclosure | ≥10MΩ@500Vdc |
7 5. Other Characteristics
5.1 Flame Retardant Requirement
- The flame retardant grade of the PCB used in the system shall meet the V-0 requirement specified in GB4943.1-2011.
- The flame retardant grade of the insulated cables shall meet the requirement specified in GB/T 18380.12-2008.
- The flame retardant grade of other insulating materials shall meet the V1 requirement specified in GB4943.1-2011.
5.2 System Noise
The system noise shall not exceed 60dB(A).
5.3 System Reliability
\(MTBF \geq 100 \text{ Khour}\)
- Test conditions: 25℃, rated input, full-load output; predicted by the stress method in MIL-HDBK-217F Notice 2.
5.4 Protection Level
The protection level shall meet the IP65 requirement. No water accumulation is allowed on the top of the power supply enclosure.
5.5 Three-proof (Moisture-proof, Mildew-proof, Salt Spray-proof)
The printed circuit boards, connectors, and other circuits in the product shall be treated with moisture-proof, mildew-proof, and salt spray-proof measures. Among them, the salt spray resistance shall meet the requirements in Table 9 of GB/T 4797.6, ensuring that the product can operate normally in outdoor humid and sweat-salt spray environments.
8 6. Product Label
Self-made or printed according to customer requirements.
9 7. Mechanical Dimensions and Connector Definition
3 1. Overview
1.1 Application Occasions
This high-voltage DC power supply is a custom-made special power supply, featuring small size, light weight, high efficiency, and built-in fan for heat dissipation. Its maximum operating efficiency is ≥97%. The power module adopts an aluminum shell design, which is lightweight, aesthetically pleasing, and waterproof, and can be used as a substitute for imported high-voltage DC module power supplies.
1.2 Product Features
- DC-DC isolated power converter: Converts the input 1400V DC power into 60V DC power in an isolated manner, with a peak output power of 30KW.
- High power density, small size, and light weight.
- Designed to meet power supply reliability requirements: Equipped with over/under-voltage protection for input, and over-voltage protection, current limiting, short-circuit protection, and over-temperature protection for output.
1.3 Product Photo
- Output +, Output +, Input
-
- Output, Output:
1.4 Main Product Specifications
| Input Voltage Range | Rated Output Voltage | Rated Output Power | Efficiency | Voltage Regulation Accuracy | Output Ripple and Noise |
|---|---|---|---|---|---|
| 1300~1400Vdc | 60±0.5Vdc | 24KW | ≥97% | ≤±1% | ≤±2%Vo |
4 2. Environmental Conditions
| Serial Number | Item | Technical Index | Unit | Remarks |
|---|---|---|---|---|
| 1 | Operating Temperature | -20℃~+35℃ | ℃ | Meets 24KW long-term operation requirements |
| 2 | Storage Temperature | -40℃~+80℃ | ℃ | / |
| 3 | Relative Humidity | ≤95 | % | No condensation (40℃±2℃) |
| 4 | Altitude | 0-3000 | m | |
| 5 | Atmospheric Pressure | 76~106 | Kpa | / |
| 6 | Heat Dissipation Method | Built-in Air Cooling | / | / |
5 3. Electrical Characteristics
3.1 Input Characteristics
| Serial Number | Item | Technical Requirement | Unit | Remarks |
|---|---|---|---|---|
| 1.1 | Rated Input Voltage | 1350 | Vdc | |
| 1.2 | Input Voltage Range | 1300~1400 | Vdc | |
| 1.3 | Maximum Input Current | 24 | A | Vin=1300Vdc, Po=30KW |
3.2 Output Characteristics
| Serial Number | Item | Technical Requirement | Unit | Remarks |
|---|---|---|---|---|
| 2.1 | Rated Output Voltage | 60 | Vdc | / |
| 2.2 | Output Voltage Range | 59.5~60.5 | Vdc | |
| 2.3 | Rated Output Current | 400 | A | / |
| 2.4 | Rated Output Power | 24000 | W | / |
| 2.5 | Peak Output Power | 30000 | W | |
| 2.6 | Output Efficiency | ≥97 | % | Vin=1350Vdc, load >50% |
| 2.7 | Voltage Regulation Accuracy | ±1 | % | / |
| 2.8 | Line Regulation | ±1 | % | / |
| 2.9 | Load Regulation | ±1 | % | / |
| 2.10 | Output Ripple and Noise | ≤700 | mVp-p | Bandwidth limited to 20MHz; 10uF electrolytic capacitor and 0.1uF film capacitor connected in parallel at the test terminal; rated load |
| 2.11 | Temperature Coefficient | ±0.02 | %/℃ | / |
| 2.12 | Output Rise Time | ≤1 | S | / |
| 2.13 | Power-on Output Delay | ≤5 | S | Rated input |
| 2.14 | Power-on/Power-off Overshoot Amplitude | △V: ≤±5 | % | / |
| 2.15 | Dynamic Response Overshoot | △V: ≤±5 | % | / |
| 2.16 | Dynamic Response Recovery Time | ≤2 | ms | 75%~50% load change at 25℃; 25%~50%~25% or 50%~ (remaining load change range to be supplemented) |
3.3 Protection Characteristics
| Serial Number | Item | Technical Requirement | Unit | Remarks |
|---|---|---|---|---|
| 3.1 | Input Under-voltage Protection | 1230~1270 | Vdc | Hysteresis greater than 10V |
| 3.2 | Input Under-voltage Recovery | 1270~1290 | Vdc | |
| 3.3 | Input Over-voltage Protection | 1430~1460 | Vdc | Hysteresis greater than 15V |
| 3.4 | Input Over-voltage Recovery | 1400~1430 | Vdc | |
| 3.5 | Output Over-voltage Protection | 62~65 | Vdc | Self-recoverable |
| 3.7 | Output Over-current Protection | 490~520 | A | Self-recoverable |
| 3.8 | Output Short-circuit Protection | No damage under long-term short-circuit | Self-recoverable | |
| 3.9 | Over-temperature Protection | When the detected enclosure temperature >50℃, current output starts to decrease; over-temperature protection is activated at 65℃, and recovery occurs at 55℃ | ℃ | Enclosure temperature |
6 4. Safety Characteristics
| Serial Number | Item | Test Condition | Remarks | |
|---|---|---|---|---|
| 1 | Dielectric Strength | Input to Output | 3000Vdc/10mA/1min | No arcing, no breakdown |
| Input to Enclosure | 2000Vdc/10mA/1min | |||
| Output to Enclosure | 1000Vdc/10mA/1min | |||
| 2 | Insulation Resistance | Input to Output | ≥10MΩ@500Vdc | Under normal atmospheric pressure, relative humidity of 90%, and test DC voltage of 500V |
| Input to Enclosure | ≥10MΩ@500Vdc | |||
| Output to Enclosure | ≥10MΩ@500Vdc |
7 5. Other Characteristics
5.1 Flame Retardant Requirement
- The flame retardant grade of the PCB used in the system shall meet the V-0 requirement specified in GB4943.1-2011.
- The flame retardant grade of the insulated cables shall meet the requirement specified in GB/T 18380.12-2008.
- The flame retardant grade of other insulating materials shall meet the V1 requirement specified in GB4943.1-2011.
5.2 System Noise
The system noise shall not exceed 60dB(A).
5.3 System Reliability
\(MTBF \geq 100 \text{ Khour}\)
- Test conditions: 25℃, rated input, full-load output; predicted by the stress method in MIL-HDBK-217F Notice 2.
5.4 Protection Level
The protection level shall meet the IP65 requirement. No water accumulation is allowed on the top of the power supply enclosure.
5.5 Three-proof (Moisture-proof, Mildew-proof, Salt Spray-proof)
The printed circuit boards, connectors, and other circuits in the product shall be treated with moisture-proof, mildew-proof, and salt spray-proof measures. Among them, the salt spray resistance shall meet the requirements in Table 9 of GB/T 4797.6, ensuring that the product can operate normally in outdoor humid and sweat-salt spray environments.
8 6. Product Label
Self-made or printed according to customer requirements.