谷歌翻译史蒂夫新驱动的原话
Having built a few DRSSTC drivers using IGBT bricks, I realized what a pain it was to build the large gate driver circuit I had previously developed. In search of something simpler, I turned back to our old friend the Gate Drive Transformer (GDT). I used to believe that it was not possible to drive large CM IGBT modules with a GDT, but I proved myself wrong. There are a few important details that must be done properly to get good results from a GDT drive. They are:
?Low leakage inductance GDT. This requires a pretty large ferrite toroid.
?Low impedance gate drive circuit using high quality ceramic decoupling and DC blocking capacitors.
?Make all long wiring coaxial (or at least twisted pair), particularly on the primary side of the GDT where the impedance is 2 or 4 times more critical (depending on half-bridge or full-bridge).
已经建成使用IGBT砖几个DRSSTC司机，我意识到什么是痛苦，是建立我以前开发的大型栅极驱动??器电路。 在寻找简单的东西，我转身回到我们的老朋友了栅极驱动变压器（GDT）。 我曾经认为这是不可能的驱动较大的CM IGBT模块用GDT，但我证明自己错了。 有迹象表明，必须做到正确地从一个GDT驱动好成绩的几个重要细节。 他们是：
?低漏感GDT。 这需要一个相当大的铁氧体磁环。
?采用高品质陶瓷去耦和隔直电容的低阻抗栅极驱动电路。
?使所有长布线的同轴（或至少双绞线），特别是关于在GDT其中阻抗为2或4倍以上的临界（取决于半桥或全桥）的初级侧。
This driver is very similar to my other ones, with a few important exceptions. The gate driver section is now very robust, using 16A P/N mosfet pairs. The input to the gate driver is set at 24VDC, so that a 1:1 GDT ratio can be used and still achieve 24V on the IGBT gate. I no longer believe its necessary to drive the gates to 30V unless you are absolutely pushing the IGBT to the extreme. Otherwise, the higher gate drive voltage just makes the possibility of gate oxide failure more likely. Even with 24V drive, TVS diodes should be placed right at the IGBT gate terminals to clamp the voltage to less than 30V.
该驱动程序非常相似，我的其他的人，有一些重要的例外。 栅极驱动器部分现在是非常强大的，采用16A P / N MOSFET对。 输入到栅极驱动器被设定在24VDC，从而以1：1的比例GDT可以使用，并且仍然获得24V的IGBT栅极。 我不再相信它需要开车门至30V，除非你是绝对的推动IGBT发挥到了极致。 否则，较高的栅极驱动电压只是使得栅极氧化物故障的可能性的可能性较大。 甚至与24V驱动，TVS二极管应放置在右IGBT栅极端子上的电压钳位到小于30V。
A note on using fiber optic receiver OPF2412:
This one seems to come back and haunt me from time to time. Im using the OPTEK OPF2412 fiber optic receiver. These are noise sensitive devices, and not surprisingly, problems show up when I use them around tesla coils. Firstly, they really should be in a metal enclosure. Secondly (and quite surprisingly), the metal sheath that is at the end of the ST fiber cable should be bonded to the metal box. It may seem absurd that a small piece of metal just a few millimeters from the lens of the Rx would be able to effect the thing, but surely enough it does. The issue is either that this metal ring picks up some RF and couples it into the Rx, or its simply that the metal ring, when grounded, extends the electrostatic shielding of the Rx. Im gonna go with number 2. Anyway, the fix for me was to just put a small steel spring that presses against the box and the ST end when its plugged in. It may be wise to stick all of the low voltage electronics into a metal box too. One more odd problem discovered and solved!
使用光纤接收器OPF2412的注意事项：
这一次似乎又回来了，并时常困扰我的时间。 即时通讯使用的OPTEK OPF2412光纤接收器。 这是噪声敏感的设备，而这并不奇怪，问题出现时，我用他们周围特斯拉线圈。 首先，他们真的应该在一个金属外壳。 其次（和相当令人惊讶的），该金属护套即在对ST光纤电缆的端部应结合到金属盒。 它可能看起来荒谬的一小块金属刚刚从接收的镜头几毫米将能够实现的事情，但肯定够了它的作用。 问题是，要么这个金属环拿起一些RF和夫妇入RX，或者它仅仅是金属环，接地时，扩展了RX的静电屏蔽。 我也会有一些2.去反正我修复是只是把小钢弹簧压紧，当其插入盒子和ST结尾。这可能是明智的坚持所有低压电器成金属框了。 一个更奇怪的问题发现并解决了！
