看到这样一句话:
it dose not cause ground bounce problem
里面的ground bounce problem是什么意思?
哪位知道,请说一下,谢谢!
怎么翻译?
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@hereliu
地弹躁声
多谢!还有下面两句不太懂,麻烦帮我看看吧!
1.The turn-off transistor shunts out the gate drive loop inductance, the potential current sense resistor, and the output impedance of the driver. 里面的shunts out 和 potential current sense resistor
2.the gate of the main MOSFET is floating before the outputs of the driver IC becomes intelligent during power up.里面的becomes intelligent during power up
谢谢!
1.The turn-off transistor shunts out the gate drive loop inductance, the potential current sense resistor, and the output impedance of the driver. 里面的shunts out 和 potential current sense resistor
2.the gate of the main MOSFET is floating before the outputs of the driver IC becomes intelligent during power up.里面的becomes intelligent during power up
谢谢!
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@ziling
多谢!还有下面两句不太懂,麻烦帮我看看吧!1.Theturn-offtransistorshuntsoutthegatedriveloopinductance,thepotentialcurrentsenseresistor,andtheoutputimpedanceofthedriver.里面的shuntsout和potentialcurrentsenseresistor2.thegateofthemainMOSFETisfloatingbeforetheoutputsofthedriverICbecomesintelligentduringpowerup.里面的becomesintelligentduringpowerup谢谢!
难啊.我也看不懂.把电路传上来,或许能猜出来.shunt out 可能指并联.potential current sense resistor 可能指磁化电流感测电阻.第二句大概指,上电期间,在驱动IC的输出变得智能化之前,主MOS的栅极是浮置的.这个intelligent 估计指能够自动控制吧.我只能瞎猜了.
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@hereliu
难啊.我也看不懂.把电路传上来,或许能猜出来.shuntout可能指并联.potentialcurrentsenseresistor可能指磁化电流感测电阻.第二句大概指,上电期间,在驱动IC的输出变得智能化之前,主MOS的栅极是浮置的.这个intelligent估计指能够自动控制吧.我只能瞎猜了.
500) {this.resized=true; this.width=500; this.alt='这是一张缩略图,点击可放大。\n按住CTRL,滚动鼠标滚轮可自由缩放';this.style.cursor='hand'}" onclick="if(!this.resized) {return true;} else {window.open('http://u.dianyuan.com/bbs/u/25/1105150466.jpg');}" onmousewheel="return imgzoom(this);">500) {this.resized=true; this.width=500; this.alt='这是一张缩略图,点击可放大。\n按住CTRL,滚动鼠标滚轮可自由缩放';this.style.cursor='hand'}" onclick="if(!this.resized) {return true;} else {window.open('http://u.dianyuan.com/bbs/u/25/1105150492.jpg');}" onmousewheel="return imgzoom(this);">
第一个图对应第一句话,第二个对应第二句.请你再看一下.谢谢!
第一个图对应第一句话,第二个对应第二句.请你再看一下.谢谢!
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@hereliu
难啊.我也看不懂.把电路传上来,或许能猜出来.shuntout可能指并联.potentialcurrentsenseresistor可能指磁化电流感测电阻.第二句大概指,上电期间,在驱动IC的输出变得智能化之前,主MOS的栅极是浮置的.这个intelligent估计指能够自动控制吧.我只能瞎猜了.
不好意思发错了,第二个图是下面这个:500) {this.resized=true; this.width=500; this.alt='这是一张缩略图,点击可放大。\n按住CTRL,滚动鼠标滚轮可自由缩放';this.style.cursor='hand'}" onclick="if(!this.resized) {return true;} else {window.open('http://u.dianyuan.com/bbs/u/25/1105151068.jpg');}" onmousewheel="return imgzoom(this);">
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@ziling
[图片]500){this.resized=true;this.width=500;this.alt='这是一张缩略图,点击可放大。\n按住CTRL,滚动鼠标滚轮可自由缩放';this.style.cursor='hand'}"onclick="if(!this.resized){returntrue;}else{window.open('http://u.dianyuan.com/bbs/u/25/1105150466.jpg');}"onmousewheel="returnimgzoom(this);">[图片]500){this.resized=true;this.width=500;this.alt='这是一张缩略图,点击可放大。\n按住CTRL,滚动鼠标滚轮可自由缩放';this.style.cursor='hand'}"onclick="if(!this.resized){returntrue;}else{window.open('http://u.dianyuan.com/bbs/u/25/1105150492.jpg');}"onmousewheel="returnimgzoom(this);">第一个图对应第一句话,第二个对应第二句.请你再看一下.谢谢!
第一句的意思应是这样的:(当Qoff导通时),它就把驱动回路电感,驱动器的输出阻抗,及potential current resistor给旁路掉了,(使得关断速度边快了).potential current resistor你没画出来,估计是磁化电流传感电阻.第二句就是我说的哪个意思,及上电期间,芯片还未开始工作,没有输出时,MOS栅极是浮置的.
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