According to at least one Internet source, the first power door locks appeared in 1914 on the now-obscure and mostly forgotten Scripps-Booth motorcar. But power locks didn't catch on as a common ...

Power relays are specifically designed to handle either AC or DC. It’s important to know the fundamental differences between them before building them into a system. Introduction to AC and DC Power ...

Since the mid-1980s, semiconductor technology has promised to provide smart power products for solid-state relays that could carry high current and provide unique functions for customers. However, ...