Please tell me about the function of mos tube

The role of MOS tubes: wide range of uses, including TV tuners (high frequency, small current) to switching power supplies (high voltage and large current), now MOS and bipolar (ordinary triode) are combined together (IGBT, Insulated Gate Bipolar Transistor), widely used in high power fields.

In the computer field, CMOS refers to the chip that saves the basic startup information of the computer (such as date, time, startup settings, etc.). People confuse CMOS with BIOS. In fact, CMOS is a readable and writable parallel or serial FLASH chip on the motherboard, which is used to save the BIOS hardware configuration and user settings for certain parameters.

MOS field effect transistor is also called metal oxide semiconductor field effect transistor (MetalOxideSemiconductor FieldEffect Transistor, MOSFET). It generally has two types: depletion type and enhanced type. Enhanced MOS field effect transistors can be divided into NPN type and PNP type. The NPN type is usually called the N-channel type, and the PNP type is also called the P-channel type.

Extended information:

When CMOS is used as the photosensitive element of digital imaging equipment, it is called an active pixel sensor (Active Pixel Sensor), such as a high-resolution digital camera CMOS applications are more common with digital cameras, especially digital SLR cameras with larger formats. In addition, consumer digital cameras and mobile phones with camera functions have also begun to use stacked active pixel sensors (Stacked CMOS, also translated as stacked active pixel sensors or stacked active pixel sensors). Or back-illuminated active pixel sensor (BSI CMOS) to improve imaging quality. Compared with traditional charge-coupled devices (CCD), CMOS has an amplifier for each pixel, so the data transmission speed is very high. ?

Although its use is very different from that of CMOS circuits in the past, which were mainly used as firmware or computing tools, it basically still uses CMOS technology, but only converts the function of pure logic operations into receiving external light. It is then converted into electrical energy, and then the obtained image signal is converted into a digital signal for output through the digital-to-analog converter (ADC) on the chip.

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