High-side sensing of zero inductor current for step-down DC-DC converter

• Main Authors: Shen Sisan, Huang Congzhong
• Format: Patent
• Language: English
• Published: 07.03.2017
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CONTROLLING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PHYSICS; REGULATING; SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES; THEIR RELEVANT APPARATUS; TRANSPORTING

A DC to DC converter circuit includes circuitry for generating a PWM waveform signal at a phase node of a DC to DC converter responsive to an input voltage and a monitor monitored output voltage. The circuitry further includes a high side switching transistor connected between the input voltage and...