virtaohjattu

Virtaohjattu is a Finnish term that translates to "current-controlled" or "flow-controlled" in English. It is primarily used in technical contexts, particularly in engineering and electronics, to describe a system or device where the output is regulated by the input current. This means that the behavior or state of the system is directly influenced by the amount of electrical current flowing into it.

In electronic circuits, a current-controlled device might be a transistor where its conductivity is managed by the base current, or a voltage regulator where the output voltage is stabilized by controlling the current supplied to it. The principle extends to other fields as well. For instance, in fluid dynamics, a flow-controlled valve would adjust its opening to maintain a specific rate of fluid passage, making it "virtaohjattu" in terms of fluid flow.

The concept of being virtaohjattu implies a direct and often precise relationship between the controlling current and the resulting output. This allows for predictable and stable operation in various applications. It contrasts with voltage-controlled systems, where the output is regulated by the input voltage. Understanding whether a system is current-controlled or voltage-controlled is crucial for its proper design, analysis, and application in engineering.