Multi-port driving and sensing circuit

A multi-port driving and sensing circuit comprising:

• a power unit having a driving voltage terminal and a reference voltage terminal;
• a plurality of bridge switching units, each of the bridge switching units has a first upper switch, a second upper switch, a first lower switch and a second lower switch, wherein the first and second lower switches are respectively connected to the first and second upper switches;
• wherein each of the bridge switching units further has a first sensing terminal and a second sensing terminal;
• wherein the first and second upper switches are connected to the driving voltage terminal and the first and second lower switches are connected to the reference voltage terminal, wherein the first sensing terminals and the second sensing terminals of the plurality of the bridge switching units are configured to respectively connect to a plurality of loads;
• a signal reading unit connected to the first and second sensing terminals;
• and
• a controlling unit connected to the bridge switching units and the signal reading unit, wherein the controlling unit has a driving procedure and a sensing procedure;
• wherein
• when the controlling unit executes the driving procedure, the controlling unit switches one of the first and second upper switches of any one of the bridge switching units to turn on for supplying a driving voltage to the load through the driven bridge switch unit;
• and
• when the controlling unit executes the sensing procedure, the controlling unit switches the first and second upper switches of any one of the bridge switching units to turn off to disconnect to the driving voltage terminal, and reads a sensing voltage signal of the load through the driven bridge switching unit and the signal reading unit.