Current Regulation - Diodes, Transistors

Transistors can be used to regulate current in a circuit. In this application, the transistor acts as a switch, allowing or blocking current flow based on the voltage applied to the transistor's control terminal. When the control voltage is low, the transistor is turned off and blocks current flow. When the control voltage is high, the transistor is turned on and allows current to flow. By carefully adjusting the control voltage, the transistor can be used to regulate the current in the circuit, providing a stable and controlled current flow. This is commonly used in applications such as power supplies and motor drives, where it is important to maintain a stable and regulated current. Diodes can also be used for current regulation, but they are not as versatile or efficient as transistors.