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Toggle신재생에너지 번역에 대해서 알아 보겠습니다(한영번역)
신재생에너지 번역(한국어 번역)신재생에너지 게이트 드라이버 결론 신재생에너지 애플리케이션에서, 시스템 설계자에게 고유한 과제는 태양광 집열판과 풍력 터빈으로 생산된 전력을 변환시키는 것이다. 이러한 과제들에는 안전성과 신뢰도 요건에 부합하는 고전압과 전력 수준 그리고 완전히 상호 연결된 시스템의 총체적인 복잡성이 포함된다. 전력 스위치용 게이트 드라이버는 전체 시스템 제어와 전력 흐름에 있어 미미한 부분으로 보일지라도, 사실상 전체적인 설계 성능에 있어 매우 중요하다. |
신재생에너지 번역(영어 번역본)Gate drivers in renewable energy Since the UCC27531 is a rail-to-rail driver, OUTH pulls up the power-switch gate to its VDD of 18 V relative to the emitter. OUTL pulls down the gate to the driver’s GND of –13 V relative to the emitter. The driver effectively sees +18 to –13 V, or 31 V from VDD relative to its own GND. Further, the 35-V rating provides a margin to prevent overvoltage failure of the IC due to noise and ringing. The split output with both OUTH and OUTL permits the user to control the turn-on (sourcing) current and turn-off (sinking) current separately. This helps to maximize efficiency and maintain control of the switching times to comply with requirements for noise and electromagnetic interference. Further, even with a split output, the singlegate driver maintains a minimum inductance on the output stage, preventing excessive ringing and overshoot. By having an asymmetrical drive (2.5-A turn-on and 5-A turn-off), the UCC27531 is optimized for average switch timing in high-power renewable-energy applications. Further, with the low pull-down impedance, this driver increases reliability by ensuring that the gate does not experience voltage spikes that could lead to false turn-on from the parasitic Miller-effect capacitance between the collector and gate for IGBTs and between the drain and gate for FETs. This internal capacitance can lead the gate to exceed the turn-on threshold voltage by pulling up on the gate when the collector/drain voltage rapidly increases during turn-off of the switch. The input stage of the UCC27531 is also designed for high-reliability systems like renewable energy. It has a socalled TTL/CMOS input that is independent of the supply voltage, allowing for compatibility with standard TTL-level signals. It provides a higher hysteresis of about 1 V when compared to the usual 0.5-V hysteresis seen in classic TTL. If the input signal is lost and becomes floating for any reason, the output is pulled low. Also, with the large changes in voltage on the GND of the driver IC, it is possible for the input signals to appear negative if the GND bounces high during a switching edge. This driver addresses this concern by handling up to –5 V continuously on the input (IN) or enable (EN) during these events. The UCC27531 comes in a 3 x 3-mm, industry-standard SOT-23 package, which is very competitive with a discrete two-transistor solution that has a discrete level shifter without negative-input capability or added protections. Beyond the obvious space savings, integrating the UCC27531’s functions into a single IC package increases the system’s overall reliability. This single-channel driver is an attractive option because it can be located very close to the power-switch gate. Placement is more flexible than for a combination high-side/low-side gate driver in a single IC. This flexibility helps minimize the inductance between the driver and power switch and gives the designer better control of the switch’s gate. Figure 2 shows how many high-power switches are in just a single phase of a DC-to-AC stage. Over a complete three-phase system with multiple conversions between DC and AC and back, and with boost stages of DC-to-DC conversion also needed in some applications, there becomes a need for many gate drivers. Each one must be strategically placed on the PCB to ensure a proper design. Conclusion |
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이상 기업에서 의뢰한 신재생에너지 번역(한영번역)의 일부를 살펴 보았습니다.
번역은 기버 번역