Abstract: The present document describes a control circuit for controlling a buck-boost power converter, which is configured to provide at an output node of the power converter an output current at an output voltage based on electrical power at an input voltage which is provided at an input node of the power converter. The control circuit is configured to determine an operation mode that the power converter is operated in; to determine an error voltage signal based on the output voltage, based on a reference voltage for the output voltage and based on the determined operation mode of the power converter; and to determine a control signal for controlling one or more power switches of the power converter in dependence of the error voltage signal.

Abstract: An adaptive method to protect a DC to DC buck converter from destruction in the event of a short circuit to ground at the output is described. The short circuit protection method is small and inexpensive, and uses very low current, allowing the buck converter to remain active and protected, as it self regulates below an acceptable maximum peak current. Inductor current is sensed in the current-mode loop circuitry and an over-current comparator is used. A masking interval generator is required to mask false over-current triggers caused by converter switching-induced glitches. Simple logic is used to detect if the current-limit comparator indicates over-current at the end of the masking interval and to implement over-current pulse-skipping on genuine over-current detection.

Abstract: A switch mode power supply, which functions in a continuous current mode and a discontinuous mode employing a zero crossing control circuit for determining a polarity of an inductor current and from the polarity of the inductor current, controlling an operational state of a switching section of the switch mode power supply such that the inductor current becomes approximately zero amperes at the end of each demagnetization phase of operation.

Abstract: A switch mode power supply, which functions in a continuous current mode and a discontinuous mode employing a zero crossing control circuit for determining a polarity of an inductor current and from the polarity of the inductor current, controlling an operational state of a switching section of the switch mode power supply such that the inductor current becomes approximately zero amperes at the end of each demagnetization phase of operation.

Abstract: An apparatus and method for a buck converter and regulation loop with pulse skipping modulation (PSM) and auto-transition to pulse frequency modulation (PFM) comprising of a peak current loop configured to provide a method of generating a constant minimal inductor peak current, a system configured to provide a method of skipping pulses utilizing a pulse skipping modulation (PSM) mode of operation, and, the peak current loop configured to provide a method of auto-transition from the pulse skipping modulation (PSM) to a pulse frequency modulation (PFM) mode of operation.

Abstract: A switch mode power supply, which functions in a continuous current mode and a discontinuous mode employing a zero crossing control circuit for determining a polarity of an inductor current and from the polarity of the inductor current, controlling an operational state of a switching section of the switch mode power supply such that the inductor current becomes approximately zero amperes at the end of each demagnetization phase of operation.

Abstract: An adaptive method to protect a DC to DC buck converter from destruction in the event of a short circuit to ground at the output is described. The short circuit protection method is small and inexpensive, and uses very low current, allowing the buck converter to remain active and protected, as it self regulates below an acceptable maximum peak current. Inductor current is sensed in the current-mode loop circuitry and an over-current comparator is used. A masking interval generator is required to mask false over-current triggers caused by converter switching-induced glitches. Simple logic is used to detect if the current-limit comparator indicates over-current at the end of the masking interval and to implement over-current pulse-skipping on genuine over-current detection.

Abstract: A switch mode power supply, which functions in a continuous current mode and a discontinuous mode employing a zero crossing control circuit for determining a polarity of an inductor current and from the polarity of the inductor current, controlling an operational state of a switching section of the switch mode power supply such that the inductor current becomes approximately zero amperes at the end of each demagnetization phase of operation.

Abstract: An apparatus and method for a buck converter and regulation loop with pulse skipping modulation (PSM) and auto-transition to pulse frequency modulation (PFM) comprising of a peak current loop configured to provide a method of generating a constant minimal inductor peak current, a system configured to provide a method of skipping pulses utilizing a pulse skipping modulation (PSM) mode of operation, and, the peak current loop configured to provide a method of auto-transition from the pulse skipping modulation (PSM) to a pulse frequency modulation (PFM) mode of operation.