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  1. Dec 12, 2006 · Hallo! A friend of mine wrote me a letter in which he wrote:"your assumption and a buck ninety will buy me an island". I don't know what buck ninety means. Could you give me any help? Thanks

  2. Jun 18, 2007 · I agree with Wildan - to me, a "buck" is always one dollar. But then again, the expression "one-fifty" can potentially mean either $1.50 or $150, so I guess it's conceivable that someone might make the same analogy for "buck and a half." But unless the context is very clear, it's best to assume that a "buck" is a single dollar.

  3. Aug 30, 2012 · "Buck" is not an equivalent of "money", but rather "a sum of money (to be gained.)" Given this, you can say "I'm making big bucks (from doing business in China)" to mean "I'm making a lot of money." The currency is of course RMB, but you can still say "bucks" in this case, because you are not actually mentioning the currency itself.

  4. 一,升压型(boost)拓扑. 大家知道开关电源的基本拓扑有且只有三种:降压型(bcuk),升压型(boost),升降压型(buck-boost);从中文命名中我就可以知道降压型拓扑只负责降压,该特性上类似于线性电源变换器(ldo),但升压型拓扑,顾名思义,就是只负责电源升压变换的拓扑。

  5. buck 电路理论基础. 伏秒平衡; 处于稳定状态的电感,开关导通时间(电流上升段)的伏秒数须与开关关断(电流下降段)时的伏秒数在数值上相等,尽管两者符号相反。这也表示,绘出电感电压对时间的曲线,导通时段曲线的面积必须等于关断时段曲线的面积.

  6. Dec 5, 2018 · dc/dc,开关电源双闭环控制仿真中,例如buck电路,电流环和电压环是怎样接起来的? 图里得模型是网上好不容易找到的,但是仿真效果并不好,图里的函数模块是怎么得来的?

  7. buck工作原理参考以前的文章,请搜索《电源系列3:dcdc buck降压电路原理》。 高电平时两种波形一样,我们只讨论低电平时的情况。 在下图非同步BUCK中,当开关S1断开时,是通过储能电感L1向负载放电,放电路径是L1->负载->D1,因此在A点测量,Vsw会有一个恒定的二极管导通电压,即-0.7V。

  8. 直接进入正题,如下图以Buck为例。我们首先假设,电感的电流波形以斜率m1上升,然后以斜率m2下降,在电感的电流达到峰值电流的时候限值电压(顶上的电压横线)突然受到一个干扰时间为Δt,幅值为+ΔV的干扰后(限值电压升高),电感峰值电流达到原本的峰值电流后在Δt时间内继续上升,上升的 ...

  9. 我还看到下面这些关于buck电路和负载之类的相关问题,估计对你也有一定帮助,也是别人提问网友解答的,可以也看看。 有关buck电路负载的问题. 单片机输出pwm波控制负载供电电压0-12v可调 【dcdc】同步buck恒压输出的轻载效率问题

  10. buck电路的这几个参数不直接对负载电流产生影响,负载电流的大小仅由负载决定,可以通过公式 Iout=Vout/R 看出,这里的R就代表负载。 我们知道,在buck电路中,稳态下输出Vout是恒定不变的,那么R与Iout就成反比关系。

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