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High frequency transformer is a power transformer whose working frequency exceeds the intermediate frequency (10kHz), which is mainly used as a high frequency switching power transformer in high frequency switching power supply, and is also used as a high frequency inverter power transformer in high frequency inverter power supply and high frequency inverter welding machine. According to the working frequency, it can be divided into several grades: 10kHz-50kHz, 50kHz-100kHz, 100kHz ~ 500kHz, 500kHz ~ 1MHz, 1MHz or more. When the transmission power is relatively large, the power device generally adopts IGBT, because IGBT has the phenomenon of turn-off current trailing, so the operating frequency is relatively low; If the transmission power is relatively small, MOSFET can be used, and the operating frequency is relatively high
Description
| Name | High frequency transformer |
| Efficiency | 85-95% |
| Size | 28.5MM |
| Core shape | E type |
| Number of power supply phases | Single phase |
| Cooling method | oil-immersed self-cooling |
| Cooling form | Dry type |
| Iron blood form | Heart type |
| Model | EE28 |
| Material | Copper wire 3K-4K magnetic core |
| Voltage ratio | 85-245 |
| Moisture-proof method | Open type |
| Frequency characteristics | High frequency |
| winding form | autocoupling |
| Shape structure | Vertical |
| Applicable products | Power supply, mobile phone charger, LED driver, control board |
Photo
High frequency transformer is a power transformer whose working frequency exceeds the intermediate frequency (10kHz), which is mainly used as a high frequency switching power transformer in high frequency switching power supply, and is also used as a high frequency inverter power transformer in high frequency inverter power supply and high frequency inverter welding machine. According to the working frequency, it can be divided into several grades: 10kHz-50kHz, 50kHz-100kHz, 100kHz ~ 500kHz, 500kHz ~ 1MHz, 1MHz or more. When the transmission power is relatively large, the power device generally adopts IGBT, because IGBT has the phenomenon of turn-off current trailing, so the operating frequency is relatively low; If the transmission power is relatively small, MOSFET can be used, and the operating frequency is relatively high
Description
| Name | High frequency transformer |
| Efficiency | 85-95% |
| Size | 28.5MM |
| Core shape | E type |
| Number of power supply phases | Single phase |
| Cooling method | oil-immersed self-cooling |
| Cooling form | Dry type |
| Iron blood form | Heart type |
| Model | EE28 |
| Material | Copper wire 3K-4K magnetic core |
| Voltage ratio | 85-245 |
| Moisture-proof method | Open type |
| Frequency characteristics | High frequency |
| winding form | autocoupling |
| Shape structure | Vertical |
| Applicable products | Power supply, mobile phone charger, LED driver, control board |
Photo
