SSPC technology incorporated with thermal memory effects to achieve the fuse curve coordination

Methods and apparatuses implement a thermal memory effect for a solid state power controller. A solid state power controller trip apparatus with thermal memory according to one embodiment comprises: a trip module including a first capacitor and a counter, wherein the first capacitor charges multiple times, when an over current event occurs, and the counter accumulates a count related to the charging of the first capacitor for the multiple times, to detect a trip condition; and a discharging module connected to the trip module, the discharging module including a resistor and a second capacitor, wherein an electrical parameter associated with the count decays with time using the resistor and the second capacitor.