SWITCH BETWEEN FIRST POWER SOURCE AND SECOND POWER SOURCE

摘要

Examples disclosed herein relate to a switch between a first power source and a second power source. Examples include a first power source electrically coupled to a load via a first transistor and a second transistor. A second power source electrically coupled to the load via a third transistor. A controller electrically coupled to drive the first transistor, the second transistor, and the third transistor to switch between the first power source and the second power source according to a determined voltage of the first power source and the second power source. The first transistor and the second transistor are back-to-back transistors, and the third transistor includes a body diode between a source terminal and a drain terminal of the third transistor to limit a voltage drop at the load in response to interruption of power from the first power source.