Negative resistance - Heanjia Super-metals Co., Ltd.

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Heanjia Super-metals Co., Ltd. [China (Mainland)]

Business Type:Manufacturer, Trading Company
City: Beijing
Province/State: Beijing
Country/Region: China (Mainland)

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Negative resistance

Negative resistance

Negative resistance is a property of some electric circuits where an increase in the current entering a port results in a decreased voltage across the same port. This is in contrast to a simple ohmic resistor, which exhibits an increase in voltage under the same conditions. Negative resistors are theoretical and do not exist as a discrete component. However, some types of diodes (e.g., tunnel diodes) can be built that exhibit negative resistance in some part of their operating range. Such a differential negative resistance is illustrated in Figure with a resonant-tunneling diode. Electric discharges through gasses exhibit negative resistance, and some chalcogenide glasses, organic semiconductors, and conductive polymers exhibit a similar region of negative resistance as a bulk property. In electronics, negative resistance devices are used to make bistable switching circuits, and electronic oscillators, particularly at microwave frequencies

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