HPK taruh disini
The diode is a simple semiconductor device acting as a "one way" current valve. It only lets current flow in one direction. Figure above illustrates how the diode operates like a "one-way" fluid valve. All electrical current flow will be "positive" or "conventional" current flow, meaning current always flows from the most positive terminal to the most negative terminal of a component. The use of positive current flow follows the intuitive direction of the arrows inherent in the component drawings for diodes, transistors, etc.
