5kW to 20kW Planar Transformers
Description
Payton SIZE 5000 provides a planar solution for very high power applications (such as traction, induction heating etc.) providing high efficiency, low EMI, excellent repeatability, low profile and weight with an operating temperature range of -40°C to +130°C.
Transformer Application
| POWER CAPACITY | DIMENSIONS (mm) | TYPICAL WEIGHT | DIELECTRIC ISOLATION | OPERATING VOLTAGE | OPERATING CURRENT (RMS) |
|---|---|---|---|---|---|
| 5kW, forward at 50 kHz 20kW, full bridge at 100 kHz | L=180-230 W=104-145 H=20-60 | 2-3 kg. | 500 VDC-4k Vrms | 1000 Vpeak max. | 1000 A max. |
- Typical efficiency: 97-99%
- Recommended frequency range: 20 kHz - 300 MHz.
- Topologies (in order of preference): Full bridge; Half bridge; Push-Pull; Forward; Resonant topologies.
- Mounting Options: a. Horizontal, b. Vertical
Inductor Application
| STANDARD AL(nH/t2) | 1600 | 1000 | 630 | 400 | 315 | 250 | 160 |
|---|---|---|---|---|---|---|---|
| TYPICAL VALUE OF MAX. Amper Turns | 190 | 310 | 490 | 790 | 950 | 1202 | 1500 |
AL values not listed are available upon request.
Typical Thermal Impedance For Different Cooling Conditions
| NATURAL COOLING (Hot Spot - Air) | BLOWING AIR 3m/sec (Hot Spot-Air) | ONE SIDE HEATSINK (Hot Spot - Heatsink) | TWO SIDES HEATSINK (Hot Spot-Heatsink) |
|---|---|---|---|
| 1.7 °C/W | 1.3 °C/W | 1.6 °C/W | 0.8 °C/W |
EXAMPLE: Transformer Type T5000 AC P.N. 11864
This T5000-16-6-6, super high power, high input voltage, high frequency, small dimensional planar transformer is developed for a high power density DC-DC converter and may be used in high power applications, providing the following specifications:
| Transformer Specifications | Value |
|---|---|
| Total output power | 20kW (590 Vdc@34 Adc) |
| Operating frequency | 100 kHz |
| Input voltage range | 815-900 Vdc |
| Topology | Full bridge, resonant |
| Max. Volt-Sec. product | 8.15 V-msec |
| Duty cycle | 2 x 0.5 max. |
| Primary current | 27 Arms max. |
| Secondary 1,2 output current | 30 Arms max. |
| Primary to Sec. 1,2 ratio | 16:6 |
| Dielectric strength pri. to sec. 1+sec. 2+core | 3750 Vrms |
| sec. 1, sec.2 to core | 1500 Vrms |
| Ambient temperature | -20 °C to +50 °C |
| Total losses (With 45 °C heat sink) | 95W |
| Hot spot temperature (With 45 °C heat sink) | 120 °C max. |
| Weight | 3000 gr. |
