AUTOMATIC BATTERY POLARITY REVERSING CIRCUIT
Original Publication Date: 1990-Oct-01
Included in the Prior Art Database: 2001-Nov-21
DC voltage operated electronic circuits are often polarity sensitive and require their battery source to be placed correctly or else possible damage may occur. A full-wave bridge diode circuit would allow battery placement regardless of polarity but would drop 1.4V if Silicon diodes are used and would result in significant power loss.