Transistor as a Switch
Transistor as a switch is the simplest application of the devices. A transistor can be used for switching operations or opening or closing of the circuit. The main or basic concept of this operation relies on it’s operation generally low voltage DC is on or off by the transistor in this mode. The both type of the PNP and NPM transistor are used as switches. The terminal transistor can be handled different from a single amplifier by biasing both the NPM and PNP bipolar transistor with “ON/OF” static switch. One of the basic and main use of the transistor is to transform a DC signal “ON” or “OFF” is solid state switch. Many devices such as LED’s, lights requires very small milliamps logic level DC voltage and can directly driven by the output of a logic. If any circuit requires Bipolar Transistor Switch then the biasing of the transistor is either PNP or NPM which are arranged for operating the transistor for both sides of the “I-V” characteristics curves.
The operating area of the transistor switch called saturation region and the cut-off Region.
Transistor as a Switch
A transistor is a three-terminal semiconductor that regulates the current or voltage flow and acts or operates as a switch or gate for signals. The devices in the electronics and electricals are the regulated values which allows the weak signal to regulate the large amount of flow to the nozzle that regulates the flow of current. The transistors quantifies thousands and millions of transistors which are interconnected and embedded into small integrated chip or circuit boards. A transistor switch is used for opening or closing the circuit, which means we use a transistor is used as a switch in electrical devices only for low-voltage application devices due to their low power consumption. The transistors work as same as the switch when is it in cutoff and saturation regions.
Table of Content
- Transistors as a Switch
- Construction
- Operating Region
- PNP as a Transistor
- Darlington Transistor Switch
- Applications