The reverse recovery characteristic is a basic and very important parameter of diodes, and particularly of fast-operating diodes. Hence comparing the numerical values of trr alone is insufficient; understanding the waveform, temperature characteristic and other behavior is useful when using diodes.
Through optimization of their structure, the R60xxJNx series of MOSFETs feature a 30% improvement in the soft recovery index over previous devices as well as reduced noise while maintaining the industry's fastest reverse recovery time trr.
This revision of the wireless demonstration amplifier includes a synchronous bootstrap FET supply for the upper FETs of the ZVS class-D amplifier that eliminates the reverse recovery losses of the gate driver's internal bootstrap diode that dissipates energy in the upper FET.
Class-D audio amplifiers typically use power MOSFETs, however, lower conduction losses, faster switching speed, and zero reverse recovery losses provided by enhancement-mode GaN(eGaN) FETs enable a significant increase in the sonic quality, and higher efficiency that can eliminate heatsinks.
Key features and benefits Improved intrinsic diode reverse recovery time(Trr) for increased efficiency Higher dV/dt capability for improved system reliability AEC-Q101-qualified 600 V and 650 V fast recovery MOSFETs for automotive applications Our wide STPOWERTM product portfolio, combined with state-of-the art packaging and protections for high reliability and safety, helps designers find the right solutions for customized, high-efficiency applications that will last a long lifetime.
Key features and benefits Improved intrinsic diode reverse recovery time(Trr) for increase efficiency Higher dV/dt capability for improved system reliability AEC-Q101-qualified 400 V, 500 V, 600 V and 650 V super-junction MOSFETs for automotive applications Our wide STPOWERTM product portfolio, combined with state-of-the art packaging and protections for high reliability and safety, helps designers find the right solutions for customized, high-efficiency applications that will last a long lifetime.
逆回復時間および逆回復充電の低い値。
Low charge and duration of reverse recovery.
この逆回復時間の違いは、すべてダイオード構造によるものです。
These differences in reverse recovery times are all due to the diode structures.
逆回復電流もほとんど流れないためErrが大幅に削減されます。
And because there is almost no reverse recovery current, Err is far lower as well.
少数キャリアが存在しないので、これらのデバイスには逆回復がありません。
As no minority carriers are present, these devices have no reverse recovery.
Incorporates high-voltage power MOSFET, ultra-low reverse recovery loss Qspeed diode, controller, and gate driver.
周波数に依存する逆回復損失が上側のデバイスで生じるので、アンプの高周波特性を制限します。
This limits high frequency performance of the amplifier because the frequency dependent reverse recovery losses are dissipated in the upper device.
右のグラフは、各FRDによる回路効率に対しFRDのtrr(逆回復時間)を重ねてあります。
The graph on the right superposes the FRD trr(reverse recovery time) versus circuit efficiency for each of the FRDs.
オン抵抗36Ω(代表値)の内蔵ブートストラップダイオードにより超高速の逆回復が可能となっています。
It is a perfect match for IGBT and MOSFET switches rated up to 650 V. The integrated bootstrap diode offers ultra-fast reverse recovery with a typical 36 Ω on-resistance.
これまで、ダイオードの低損失化には、逆回復時間(trr)を短縮することが一般的でした。
Until now, loss caused by diodes has commonly been reduced by shortening reverse recovery time trr.
When the operating speed of a PN-junction diode is raised, the result is a fast-recovery diode(FRD); even so, however, the trr(reverse recovery time) and other characteristics are inferior to those of SBDs.
In the continuous mode operation, a reverse current flows during rectifying diode reverse recovery time(trr)* at switch-on time, and losses occur due to the reverse current.
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