H02M3/1584

POWER SUPPLY SYSTEM AND CONTROL IN A DYNAMIC LOAD CONFIGURATION
20230016930 · 2023-01-19 ·

An apparatus includes a controller. The controller monitors a magnitude of first current supplied by an output voltage of a first power converter to power a dynamic load. The controller controls a second power converter to supply second current through the dynamic load based on the monitored magnitude of first current.

HYBRID BI-DIRECTIONAL DC-DC POWER CONVERTER AND METHODS OF OPERATION THEREOF

The present disclosure provides a bidirectional hybrid power converter that may include an input circuit consisting of an input power supply and input capacitor, a plurality of switches connected to each other, to input power supply to a set of passive electronic components, to ground and to an output circuit comprising one or more output terminals, each consisting of an output capacitance. The plurality of switches is connected directly or through passive electronic components in an arrangement to obtain a plurality of power converter networks for battery charging as well as other applications by reuse of a set of plurality of switches. The input power supply and the output load are referred to based on the direction of the power conversion flow, forward or reverse. The first terminal can be connected to both a power source as an input and load as an output.

Chip embedded power converters
11557962 · 2023-01-17 · ·

A direct current to direct current (DC-DC) converter can include a chip embedded integrated circuit (IC), one or more switches, and an inductor. The IC can be embedded in a PCB. The IC can include driver, switches, and PWM controller. The IC and/or switches can include eGaN. The inductor can be stacked above the IC and/or switches, reducing an overall footprint. One or more capacitors can also be stacked above the IC and/or switches. Vias can couple the inductor and/or capacitors to the IC (e.g., to the switches). The DC-DC converter can offer better transient performance, have lower ripples, or use fewer capacitors. Parasitic effects that prevent efficient, higher switching speeds are reduced. The inductor size and overall footprint can be reduced. Multiple inductor arrangements can improve performance. Various feedback systems can be used, such as a ripple generator in a constant on or off time modulation circuit.

POWER CONVERSION CIRCUIT AND POWER CONVERSION APPARATUS WITH SAME
20230223832 · 2023-07-13 ·

A power conversion circuit includes a first terminal, a second terminal, a first switching conversion unit, a second switching conversion unit, a flying capacitor and a magnetic element. The first switching conversion unit includes a first switch and a third switch. The second switching conversion unit includes a second switch and a fourth switch. The magnetic element includes two first windings and a second winding. A first one of the two first windings is serially connected between the flying capacitor and the second terminal. A second one of the two first windings is serially connected between the second switch and the second terminal. The second winding is serially connected with the flying capacitor and the first one of the two first windings. A turn ratio between the second winding, the first one of the two first windings and the second one of the two first windings is N:1:1.

INLINE DC FEEDER DC/DC VOLTAGE STEP-UP HARNESS

An inline DC feeder DC/DC voltage step-up harness for photovoltaic solar facilities includes a housing, a plurality of PV input connectors, an at least one PV output connector. The housing incorporates a DC/DC converter, and has an input and an output. The plurality of PV input connectors are operatively connected to the housing at the input. The PV output connector is operatively connected to the housing at the output.

APPARATUS AND METHOD FOR CONTROLLING TRANSIENT BOOST CIRCUIT OF VOLTAGE REGULATOR THROUGH FEEDBACK SIGNALS OBTAINED BY DIFFERENTIAL SENSING APPLIED TO OUTPUT CAPACITOR
20230223851 · 2023-07-13 · ·

A transient boost controller for controlling a transient boost circuit of a voltage regulator includes a feedback circuit and a processing circuit. The feedback circuit obtains a first feedback signal and a second feedback signal sensed from an output capacitor of the voltage regulator, wherein the first feedback signal is derived from a voltage signal at a first plate of the output capacitor, and the second feedback signal is derived from a voltage signal at a second plate of the output capacitor. The processing circuit generates a detection result according to the first feedback signal and the second feedback signal, and outputs the detection result for controlling the transient boost circuit of the voltage regulator.

Multi-phase switching regulator including interleaving circuit and switching regulating method using the same

A multi-phase switching regulator and a switching regulating method using the multi-phase switching regulator employ an interleaving circuit. The multi-phase switching regulator includes: a first regulating circuit configured to receive an input voltage and generate a first sub-output voltage with a first phase by transforming the input voltage in response to a first set signal; a second regulating circuit configured to receive the input voltage and generate a second sub-output voltage with a second phase by transforming the input voltage in response to a second set signal; and the interleaving circuit configured to repeatedly and sequentially generate the first set signal and the second set signal by comparing a reference voltage with an output voltage generated based on the first sub-output voltage and the second sub-output voltage.

Fast-switching power management circuit operable to prolong battery life
11699950 · 2023-07-11 · ·

A fast-switching power management circuit operable to prolong battery life is provided. The power management circuit includes a voltage circuit that can generate an output voltage for amplifying an analog signal in a number of time intervals and a pair of hybrid circuits each causing the output voltage to change in any of the time intervals. A control circuit is configured to activate any one of the hybrid circuits during a preceding one of the time intervals to cause the output voltage to change in an immediately succeeding one of the time intervals. By starting the output voltage change earlier in the preceding time interval, it is possible to complete the output voltage change within a switching window in the succeeding time interval while concurrently reducing rush current associated with the output voltage change, thus helping to prolong battery life in a device employing the power management circuit.

Scalable, hierarchical power delivery system
11698669 · 2023-07-11 · ·

A hierarchical, scalable power delivery system is disclosed. The power delivery system includes a first level of power converter circuitry configured to generate one or more first level regulated supply voltages, and a second level of power converter circuitry configured to generate one or more second level regulated supply voltages. The first level of power converter circuitry receives an input supply voltage, while the second level power converter circuitry receives the one or more first level supply voltages. The second level power converter circuitry is configured to provide the second level regulated supply voltages to a computing element configured to operate as a single, logical computer system, the computing element being configured to operate in a number of power configurations having differing numbers of load circuits. Different portions of the hierarchical power delivery system may be selectively enabled for corresponding ones of the power configurations of the computing element.

DC/DC CONVERTER WITH PARALLEL BUCK-BOOST MODULES FOR ELECTROFUSION WELDING
20230216412 · 2023-07-06 · ·

A power convertor configured to output power to an electrofusion welding coupler for performing electrofusion welding. The power convertor comprises an array of connected DC to DC power convertor circuits. In use, the array of connected DC to DC power convertor circuits is configured to receive, at a first interface, power at a first voltage level from a battery and output power, at a second interface, at a second voltage level to provide power to electrofusion welding cable means. The DC to DC power convertors are arranged in a buck-boost configuration which can operate in a boost mode in which the first voltage level is less than the second voltage level and in a buck mode in which the first voltage level is greater than the second voltage level.