Jännitelämpötila

Jännitelämpötila, sometimes translated as voltage temperature or temperature coefficient of voltage, refers to the change in voltage of a component or device with respect to a change in temperature. Many electronic components, such as diodes, transistors, and even power supplies, exhibit a variation in their output voltage as their operating temperature fluctuates. This phenomenon is often characterized by a temperature coefficient, typically expressed in units like millivolts per degree Celsius (mV/°C) or parts per million per degree Celsius (ppm/°C).

A positive temperature coefficient means that the voltage increases as the temperature rises, while a negative temperature coefficient indicates that the voltage decreases with increasing temperature. This characteristic is important in the design of electronic circuits, especially those requiring high precision or stability. For instance, in analog circuits, variations in component temperatures can lead to drift in signal levels or inaccurate measurements. Designers often employ temperature compensation techniques, such as using components with specific temperature coefficients or incorporating feedback mechanisms, to mitigate the effects of jännitelämpötila and ensure consistent performance across a range of operating conditions. Understanding and accounting for jännitelämpötila is crucial for reliable and predictable electronic system operation.