200 to 1400W Planar Transformers
Description
Payton SIZE 125 provides a patented planar isolation solution (creepage and clearance of 8.0 mm) for low to medium power applications. It offers 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) |
|---|---|---|---|---|---|
| 200W, forward at 150 kHz 1400W, full bridge at 1MHz | L=40-80 W=32 H=8-30 | 50 gr. | Up to 5k Vrms | 500 Vpeak max. | 100 A max. |
- Typical efficiency: 97-99%
- Recommended frequency range: 100 kHz - 2.5 MHz.
- Topologies (in order of preference): Full bridge; Half bridge; Push-Pull; Forward; Flyback; Boost; Buck; Resonant topologies.
- Mounting Options: a. Horizontal, b. Vertical
Inductor Application
| STANDARD AL(nH/t2) | 1600 | 1000 | 630 | 400 | 315 | 160 |
|---|---|---|---|---|---|---|
| TYPICAL VALUE OF MAX. Amper Turns | 22 | 39 | 65 | 103 | 129 | 236 |
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) |
|---|---|---|---|
| 13 °C/W | 8 °C/W | 4 °C/W | 2 °C/W |
EXAMPLE: Transformer Type T125 AC P.N. 500872
This T125AC-14-6, high power, medium frequency, small dimensional planar transformer is developed for a high power density DC-DC converter and may be used in UPS applications, providing the following specifications:
| Transformer Specifications | Value |
|---|---|
| Total output power | 640 W (51 Vdc/12.5 Adc) |
| Operating frequency | 100 kHz |
| Input voltage range | 140-250 Vdc. |
| Topology | Full bridge |
| Max. Volt-Sec. product | 1201 V- µSec |
| Duty cycle | 0.87 max. |
| Primary current | 5.52 Arms max. |
| Primary to Sec. ratio (Sec. current, max 11.66 Arms) | 14:6 |
| Dielectric strength pri. to sec.+core | 3750 Vrms |
| sec. to core | 500 Vdc |
| Ambient temperature | -40 °C to +85 °C |
| Total losses (With 85 °C heat sink) | 7.5 W |
| Hot spot temperature (With 85 °C heat sink) | 115 °C |
| Weight | 70 gr. |
