초록 ▼

Static current consumption in a low-side output drive stage is eliminated by employing a switch in series with a current generator that is employed for controlling the discharge process of the driving node (gate) of the output power transistor and by controlling the switch with the voltage that is p

Static current consumption in a low-side output drive stage is eliminated by employing a switch in series with a current generator that is employed for controlling the discharge process of the driving node (gate) of the output power transistor and by controlling the switch with the voltage that is present on the driving node of the out put power transistor.

대표청구항 ▼

1. A low-side driver circuit, for use with an output power transistor having a threshold voltage, comprising:a first current generator which is electrically coupled to receive and be controlled by a first switching signal, said first current generator being electrically coupled to said output power

1. A low-side driver circuit, for use with an output power transistor having a threshold voltage, comprising:a first current generator which is electrically coupled to receive and be controlled by a first switching signal, said first current generator being electrically coupled to said output power transistor to deliver a current, in response to said first switching signal, for charging a driving node of said output power transistor; a second current generator electrically coupled to receive and be controlled by a second switching signal which is substantially complementary to said first switching signal, and to deliver a current, in response to said second switching signal but not said first switching signal, for discharging said driving node of said output power transistor; and control circuitry electrically coupled to said second current generator and to said output power transistor, said control circuitry being connected to prevent passage of current through said second current generator when the output power transistor is not conducting, said control circuitry being controlled by a voltage at said driving node of said output power transistor.