In electronics, a feedback arrangement in which the output signal is effectively added to the input signal (in same phase) and the resulting signal is fed into the system. In some case this can result in a self sustained oscilation.; 電子技術(shù)中的一種反饋方式,在這種方式中,輸出信號(hào)有效地疊加在輸入信號(hào)上(同 相),并把疊加后的信號(hào)饋送給系統(tǒng)。在某些情況下,這可能導(dǎo)致自激振蕩。比較negativefeedback。參閱feedback。