This post tells about analog divider and multiplier and covers an introduction to voltage divider and multiplier. The voltage divider and multiplier are considered…
Category: Semiconductor Devices
Semiconductor Devices: Preface
Aim of the study element
To provide information about semiconductor devices, their characteristics, inner structure and functions in different conditions. To give basis for learners on how to use semiconductors in a circuit.
Having successfully completed this element you will be able to:
- Differentiate classes of semiconductor devices.
- To design a circuit based on the component features.
- To conduct circuit analysis and understand the impact of every component.
- To measure semiconductor device properties and characteristics.
- Semiconductors and diodes.
- Amplifier and switches.
- Operational amplifiers.
What is a JFET transistor and how it works
This post is about structure, parameters and properties of JFET transistor. JFET transistor is a three-terminal device, where one of the terminal can control…
The previous module showed the characteristics of semiconductors and their variety under different conditions. Here we will briefly recap the main characteristics of semiconductors…
P-N junction in semiconductors
This post is covers the topic of pn junction definition. A semiconductor itself does not give any special properties to a semiconductor device. However,…
Large signal diode models
Ideal diode model: describes the diode as an on-off device. The ideal diode can be approximated to the open-circuit and short-circuit device. In the…
Small-signal diode models
The idea of small-signal modelling is that the short-cut part of the current-voltage characteristic of the semiconductor diode is not precise enough in an…
Signal processing diode applications
Limiter A limiter is a diode circuit that is designed to keep voltages at the load in a certain voltage range –Vmin<VL<Vmax, so the…
Transistor as an amplifier
A transistor is a three-terminal semiconductor device that can perform amplification and switching functions. The operation of a transistor as a linear amplifier is…
What are MOS devices
A MOS-device is a simplified example of a MOSFET structure (without source and drain). Let's consider how the MOS-device works. The simplest MOS-device has…
FET transistors are working differently than BJT transistors. In FET width of conducting channel is varied by applying of external electric field. They operate…