glossary:glossary_m
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glossary:glossary_m [2021/08/11 11:02] – [MOSFET] WortingUK | glossary:glossary_m [2021/08/11 11:57] (current) – [Microprocessor] WortingUK | ||
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[[wp> | [[wp> | ||
+ | microprocessor is a general-purpose name. Specialised devices: | ||
+ | A digital signal processor (DSP) is specialized for signal processing.\\ | ||
+ | Graphics processing units (GPU) for rendering of images.\\ | ||
+ | Microcontrollers integrate a microprocessor with peripheral devices in embedded systems..\\ | ||
+ | System On Chip (SoC) often integrate one or more microprocessor cores with bus controllers. | ||
===== Mobile decoder ===== | ===== Mobile decoder ===== | ||
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===== MOSFET Metal-Oxide-Semiconductor Field-Effect Transistor ===== | ===== MOSFET Metal-Oxide-Semiconductor Field-Effect Transistor ===== | ||
- | A MOSFET is a type of transistor with a Gate, Source and Drain terminals. [[wp> | + | A MOSFET is a type of transistor with a Gate, Source and Drain terminals. [[wp> |
- | They are the dominant type of transistor in electronics | + | They are the dominant type of transistor in electronics.\\ |
- | The resistance between Source and Drain (D-S) controlled by the Voltage applied across the Gate and Source. | + | The resistance between Source and Drain (D-S) is controlled by the Voltage applied across the Gate and Source. |
- | A Voltage across D-S causes a current to flow in the D-S resistance.\\ | + | A Voltage across D-S causes a current to flow in the D-S resistance. There are several sub-types...\\ |
- | There are several sub-types...\\ | + | - N channel uses positive Voltages |
- | - N channel uses positive Voltages\\ | + | - Depletion mode uses increasing Gate Voltage to increase D-S resistance |
- | | + | |
- | - Depletion mode uses increasing Gate Voltage to increase D-S resistance\\ | + | |
- | | + | |
For MERG, the common type is N channel Enhancement mode.\\ | For MERG, the common type is N channel Enhancement mode.\\ | ||
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The Gate exhibits a very high resistance (insulation) to the Source or Drain.\\ | The Gate exhibits a very high resistance (insulation) to the Source or Drain.\\ | ||
- | There being an insulation, the Gate has some capacitance to the other pins and needs to be driven by a low impedance (AC resistance) input signal. A high impedance input signal will make the device slow. An open circuit Gate can build up a charge and results in the D-S going low resistance (turns ' | + | There being an insulation, the Gate has capacitance to the other pins and needs to be driven by a low impedance (AC resistance) input signal. A high impedance input signal will make the device slow. An open circuit Gate can build up a charge and results in the D-S going low resistance (turns ' |
- | + | ||
===== MSAG ===== | ===== MSAG ===== | ||
glossary/glossary_m.txt · Last modified: 2021/08/11 11:57 by WortingUK