Vacuum tubes require DC voltage sources as well.
真空电子管也要求以直流电压为电源。
Picoammeters with voltage sources can also measure high resistances.
带有电压源的皮安计也可以测量高阻。
This might be in the area of special interface circuitry, or auxiliary DC voltage sources.
这可能是在特殊接口电路，或辅助直流电压源方面。
All voltage sources have internal resistance, so all voltage sources develop Johnson noise.
所有的电压源都具有内阻，所以所有的电压源都会产生约翰逊噪声。
In their ideal form, voltage sources generate a constant voltage independent of the current drawn from the source.
理想条件下，电源产生的电压与电源送出的电流是无关的。
Leakage currents are generated by stray resistance paths between the measurement circuit and nearby voltage sources.
泄漏电流是由测量电路和附近的电压源之间的寄生电阻通路产生的。
Even high resistance paths between low current conductors and nearby voltage sources can generate significant leakage currents.
即使小电流导体和附件电压源之间的高阻通路也会产生明显的漏流。
In this connection it is endeavoured to reduce the risk of an increase in voltage in a circuit with several direct voltage sources.
在这方面，试图减少在具有几个直流电压源的电路中产生电压升高的风险。
Some electrometers and picoammeters have voltage sources built into the instrument and automatically can calculate the unknown resistance.
有些静电计和皮安计具有内置的电压源，能够自动地计算出未知电阻。
A loop charge approach is presented for the exact analysis of switched-capacitor networks containing capacitors, independent voltage sources, switches and nullors.
本文提出了一种适用于开关电容网络精确分析的回路电荷法。
When we set up the nodal equations, which is associated with ideal voltage sources, we can use an enclosed surface to encircle these nodes and think of it as a general node.
在列写与无伴电压源相关联的节点方程时，用一个封闭面把连接无伴电压源的节点包围起来，看做一个广义节点，其节点的方程与通常的节点法一样。
Explicit formulas for the constraint admittance matrix and the nodal short-circuit current source vector of networks containing ideal voltage sources are derived by nodal approach.
本文用节点法分析了含理想电压源的网络，从网络的不含源导纳矩阵获得了含源网络的约束导纳矩阵以及节点短路电流源向量的公式。
Switching and measuring voltage sources with high internal impedance are subject to a number of errors, including offset currents, stray leakage paths, and electrostatic interference.
切换和测量具有高内阻的电压源会受各种误差的影响，包括偏移电流、寄生漏泄通路，以及静电干扰。
Its feature is that the input logical signal is converted to drive power by a special isolated converter, which makes a IGBT module turn on or off quickly, without any other biased voltage sources.
其特征是不要外接偏置电压源，而由一个特殊隔离变换器将输入逻辑信号变换为能快速开通或关断IGBT模块的驱动电力。
Its feature is that the input logical signal is converted to drive power by a special isolated converter, which makes a IGBT module turn on or off quickly, without any other biased voltage sources.
其特征是不要外接偏置电压源，而由一个特殊隔离变换器将输入逻辑信号变换为能快速开通或关断IGBT模块的驱动电力。
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