| 摘要 |
There are described various methods and circuits for trimming the parameter value of a thermally mutable electrical component in two directions. A sequence of heat pulses is selected as a function of thermal history using a n adaptive trimminig algorithm, where parameters of the sequence of heat pulse s are based on a resulting impact of previous heating pulses. Direction of trimming, trimming increment, and remaining trimming distance can all be use d to determine the parameters of succeding heat pulses, wherein the parameters of the pulses can be, for the example, amplitude, duration, and time interva l between pulses. |
