| 1. | Used in the circuits of across - the cline type noise suppression and other ac dc circuits
适用于电源跨线降噪线路以及其它直流交流场合 |
| 2. | It is to be noted that thevenin ' s theorem applies to ac as well as to dc circuits
要注意，代文宁定理不仅适用于直流电路，也适用于交流电路。 |
| 3. | Railway applications - electric equipment for rolling stock - part 3 : rules for dc circuit - breakers
铁路设施.机车车辆用电气设备.第3部分:直流断路器规则 |
| 4. | The content of the investigation concerns basic concepts in mechanics , dc circuit and mechanical waves
内容涉及动力学、直流电路和机械波中的基本概念。 |
| 5. | 9 . a charging ( discharging ) circuit for storage battery and a dc / dc circuit for mppt of array are designed
设计出用于阵列mppt的dc dc电路和具有蓄电池分组充、放电电路。 |
| 6. | This paper mainly presents the computer test system of the relay time parameter when the relay controls the dc circuit
本文主要提出了继电器控制直流电路时时间参数的检测系统，主要由检测部分和控制显示部分组成。 |
| 7. | Dc electrolytic capacitors , it can be used on dc circuit only . its polarity is marked with " + " and " - " or " - " only , it is indicated on proper position or aside of lead wire / terminal
直流电解电容器只能使用在直流电路上，其极性必须标明在适当的位置或在导针/端子旁边。 |
| 8. | Doing a measurement with your dmm in the acv position on your dc circuit will give a quick indication of any excess ripple on the supply when you don " t have a scope at hand
用数字万用表的交流档在直流电路上进行测量，将在供电端产生一个任意超额纹波的快速指示，如果手头没有示波器的话。 |
| 9. | In the hardware section , the interface between the cy7c68013 ’ gpif ( general programmable interface ) and the a / d converter was introduced , and the various dc - dc circuit were embodied
其中硬件部分具体介绍了usb2 . 0控制器cy7c68013的gpif和模数转换器的接口设计,同时也给出了系统各种电源转换的实现方法。 |
| 10. | Firstly . operation principle of induction heating is introduced and the actuality of the power supply for induction heating is summarized . then , the scheme of structure of the power supply is established : uncontrolled rectifier and buck chopper constitute dc circuit . in this part , operation principle of a kind of soft switching buck chopper is presented mainly and the conclusion that the power semiconductor devices operate in soft switching is also illustrated by analysing the operation principle of all stages ; series resonant inverter is selected as inverter circuit via comparing the advantage and shortcoming of parallel resonant and series resonant . moreover . the work principle of series resonant inverter is analysed and the calculating method of the best dead time is put forward as well
文中首先介绍了感应加热电源的工作原理并综述了国内外的研究现状。接下来分析并制定了电源主电路的构成方案：在对比几种功率调节方式的基础上选择了不控整流加斩波调压作为直流部分。在这部分里，重点研究了一种软开关buck变换器，通过分析各阶段的工作原理说明了开关器件如何工作在软开关状态；对于逆变器部分，在比较了串、并联逆变器优缺点的基础上选择了串联谐振逆变器，并详细分析了串联逆变器的工作原理，提出了最佳死区的计算方法。 |
