Многоветвийные мостовые электрические цепи

Abstract

The initial four-arm bridge electric circuit contains two branches. In view of the fact that multiarm (i.e., containing more than four arms) bridges exist in reality, the following tasks are logically stemming from it: either to substantiate multibranch (containing more than two branches) bridge circuits or to show that such bridges cannot exist in principle. The article substantiates the existence of multibranch bridge circuits and points out their specific features. A distinctive feature of such bridges is that instead of one of the branches that contains adjustable balancing elements, there is a group of branches with these elements and elements of links between the branches. Such bridges can only be balanced by means of adjustable elements of the same type: resistors, capacitors, or inductive coils. If the bridge has an impulse power supply, the balancing is done separately, and only by means of grounded adjustable balancing elements. A part of the considered bridge circuits has an extended functionality. The structures of branch groups and the bridge circuits involving the use of these groups have been defined, due to which they are theoretically suitable for determining the parameters of two-poles containing, in principle, any required or specified number of elements.