18480332. CROSS-COUPLED CHARGE PUMP FOR DRIVING A BOOTSTRAP SWITCH (STMicroelectronics International N.V.)
CROSS-COUPLED CHARGE PUMP FOR DRIVING A BOOTSTRAP SWITCH
Organization Name
STMicroelectronics International N.V.
Inventor(s)
[[:Category:Alessandro Sacc� of Milan IT|Alessandro Sacc� of Milan IT]][[Category:Alessandro Sacc� of Milan IT]]
Niccolò Brambilla of San Donato Milanese IT
CROSS-COUPLED CHARGE PUMP FOR DRIVING A BOOTSTRAP SWITCH
This abstract first appeared for US patent application 18480332 titled 'CROSS-COUPLED CHARGE PUMP FOR DRIVING A BOOTSTRAP SWITCH
Original Abstract Submitted
According to an embodiment, a bootstrap drive circuit for driving a bootstrap switch in a DC-DC converter is proposed. The bootstrap drive circuit includes a non-overlapping circuit, a first and a second capacitor, and a first and a second n-channel transistor. The non-overlapping circuit is configured to receive an input signal, the input signal being a function of a pulse width modulated (PWM) signal, wherein the input signal and the PWM signal are characterized by a first logic level, generate a first control signal from the input signal at a first output terminal of the non-overlapping circuit, the first control signal having the first logic level, and generate a second control signal from the input signal at a second output terminal of the non-overlapping circuit, the second control signal being characterized by a second logic level different from the first logic level.
