Battery circuit for supplying power to an electronic device

A battery circuit for use in supplying power to an electronic device, said battery circuit comprising:

• (a). a first battery source having a positive terminal and a negative terminal,
• (b). a second battery source connected in parallel to said first battery source, said second battery source having a positive terminal and a negative terminal,
• (c). a first auxiliary circuit connected to said first battery source, said first auxiliary circuit comprising,
• (i). a first transistor having a first switching state and a second switching state, said first switching state allowing current to flow to said first battery source from said second battery source and said second switching state preventing current from flowing to said first battery source from said second battery source, said first transistor being a metal-oxide-semiconductor field-effect transistor (MOSFET) having an N-type channel and including a drain, a gate and a source, and
• (ii). a first operational amplifier for controlling the switching state of said first transistor, said first operational amplifier having an inverting input, a noninverting input, an output, a collector terminal and an emitter terminal,
• (iii). wherein the positive terminal of said first battery source is coupled to the collector terminal of said first operational amplifier and to the electronic device, the negative terminal of said first battery source is coupled to the inverting input of said first operational amplifier and to the drain of said first transistor, the emitter terminal of said first operational amplifier is coupled to the noninverting input of said first operational amplifier and to the source of said first transistor, the noninverting input of said first operational amplifier is coupled to the output of said first operational amplifier and to the source of said first transistor, the output of said first operational amplifier is coupled to the gate of said first transistor, and the source of said first transistor is coupled to a ground, and
• (d). a second auxiliary circuit connected to said second battery source, said second auxiliary circuit comprising,
• (i). a second transistor having a first switching state and a second switching state, said first switching state allowing current to flow to said second battery source from said first battery source and said second switching state preventing current from flowing to said second battery source from said first battery source, said first transistor being a metal-oxide-semiconductor field-effect transistor (MOSFET) having an N-type channel and including a drain, a gate and a source, and
• (ii). a first operational amplifier for controlling the switching state of said second transistor.

A battery circuit for use in supplying power to an electronic device, said battery circuit comprising:

• (a). a first battery source having a positive terminal and a negative terminal,
• (b). a second battery source connected in parallel to said first battery source, said second battery source having a positive terminal and a negative terminal, and
• (c). a first auxiliary circuit connected to said first battery source, said first auxiliary circuit comprising,
• (i). a transistor having a first switching state and a second switching state, said first switching state allowing current to flow to said first battery source from said second battery source and said second switching state preventing current from flowing to said first battery source from said second battery source, and
• (ii). an operational amplifier for controlling the switching state of said transistor.

A battery circuit for use in supplying power to an electronic device, said battery circuit comprising:

• (a). a first battery source having a positive terminal and a negative terminal,
• (b). a second battery source connected in parallel to said first battery source, said second battery source having a positive terminal and a negative terminal,
• (c). a first auxiliary circuit connected to said first battery source, said first auxiliary circuit comprising,
• (i). a first transistor having a first switching state and a second switching state, said first switching state allowing current to flow to said first battery source from said second battery source and said second switching state preventing current from flowing to said first battery source from said second battery source, said first transistor being a metal-oxide-semiconductor field-effect transistor (MOSFET) having an N-type channel and including a drain, a gate and a source, and
• (ii). a first operational amplifier for controlling the switching state of said first transistor, and
• (d). a second auxiliary circuit connected to said second battery source, said second auxiliary circuit comprising,
• (i). a second transistor having a first switching state and a second switching state, said first switching state allowing current to flow to said second battery source from said first battery source and said second switching state preventing current from flowing to said second battery source from said first battery source, said first transistor being a metal-oxide-semiconductor field-effect transistor (MOSFET) having an N-type channel and including a drain, a gate and a source, and
• (ii). a second operational amplifier for controlling the switching state of said second transistor, said second operational amplifier having an inverting input, a noninverting input, an output, a collector terminal and an emitter terminal,
• (iii). wherein the positive terminal of said second battery source is coupled to the collector terminal of said second operational amplifier and to the electronic device, the negative terminal of said second battery source is coupled to the inverting input of said second operational amplifier and to the drain of said second transistor, the emitter terminal of said second operational amplifier is coupled to the noninverting input of said second operational amplifier and to the source of said second transistor, the noninverting input of said second operational amplifier is coupled to the output of said second operational amplifier and to the source of said second transistor, the output of said second operational amplifier is coupled to the gate of said second transistor, and the source of said second transistor is coupled to a ground.