In a voltage source according to the present invention, a switching transistor (Q 1 ) is turned on when the voltage of an electrolytic capacitor (C 1 ) exceeds a predefined positive voltage level (E 1 ), to keep the electrolytic capacitor (C 1 ) at the predefined voltage level (E 1 ...
A parallel-plate, voltage-variable capacitor is designed to have an increased current conducting perimeter relative to its area. In one approach, the perimeter is increased by changing the shape of the plates. In another approach, the varactor is implemented by a number of disjoint plates, which...
The dc-link capacitor is one of the critical components, which influences the lifetime of the whole voltage source converter unit. For reliable design, the operating temperature of the dc-link capacitor should be known, which is primarily determined by the ambient temperature and the rms value ...
A flux-controlled memristor characterized by smooth cubic nonlinearity is taken as an example,upon which the voltage-current relationships(VCRs) between two parallel memristive circuits-a parallel memristor and capacitor circuit(the parallel MC circuit),and a parallel memristor and inductor circuit(the ...
专利名称：VOLTAGE-VARIABLE CAPACITOR WITH INCREASED CURRENT CONDUCTING PERIMETER 发明人：ROBERT, A. YORK 申请号：AU2002346390 申请日：20021111 公开号：AU2002346390A1 公开日：20030623 专利内容由知识产权出版社提供 摘要：A parallel-plate, voltage-variable capacitor (100) is designed to have an increased ...
1) alternating current in capacitor 电容器的交流电流2) AC capacitor 交流电容器 1. Because of clearances between film layers of CBB65 metalized polypropylene AC capacitors,the films were deformed under electromagnetic force,and film resonance by such periodic deformation caused hum. CBB65型金属化...
Unit1Charge,Currentand Voltage 电荷,电流与电压(1) Themainideaofthisunit: Thisunitismainlydiscussthebasicknowledge about“charge,currentandvoltage”. (1)Anatomiscomposeofprotons,neutrons,which constitutenucleus,andelectrons. (2)TheletterQisusuallyusedtodenotethecharge symbolandthebasicunitofvoltageisvolt. ...
5534/64. Heading [Also in Divisions G3 and H3] A voltage or current comparator, Div. H3, comprising a second harmonic type magnetic modulator which is made to perform parametric oscillations by applying a high frequency current across a non linear resistance in the output circuit thereof may ...
In an alternate preferred embodiment, an alternating current is passed through the portion of the earth formation and through a capacitor and a resistor connected in series with the portion. The first DC signal is generated by filtering out the high frequency components from the product of the ...
alternatingvoltage appliedto a pure resistor, pure inductor, and a capacitor. It also presents the power inalternating current circuits. The power at any instant during a cycle is obtained by multiplying together corresponding instantaneous values of current and voltage. In the case of the ...