Abstract: Chip package and method thereof. For example, a chip package of a charging controller chip for a USB charger includes: a high-side transistor including a first drain, a first gate and a first source; a low-side transistor including a second drain, a second gate and a second source, the low-side transistor being connected to the high-side transistor; one or more port transistors corresponding to one or more USB output ports respectively, each port transistor of the one or more port transistors including a third drain, a third gate and a third source; a controller coupled to the high-side transistor, the low-side transistor, and the one or more port transistors; a first chip base; a second chip base electrically insulated from the first chip base; and a third chip base electrically insulated from the first chip base and electrically insulated from the second chip base.

Abstract: DC-to-DC converter for multiport charging system and method thereof. For example, a DC-to-DC converter for a multiport charging system, the multiport charging system including a plurality of output ports that correspond to a plurality of DC-to-DC converters respectively, the plurality of DC-to-DC converters including the DC-to-DC converter, the plurality of output ports including a first output port that corresponds to the DC-to-DC converter, the DC-to-DC converter including: a load detector configured to: detect whether the first output port that corresponds to the DC-to-DC converter is connected to any load; and among the plurality of output ports, determine a first number of one or more output ports that are connected to one or more loads respectively; and a generator configured to: if the first output port that corresponds to the DC-to-DC converter is connected to a load, generate a first voltage as an output voltage for the first output port.

Abstract: Handshake controller and handshake control method for one or more charging protocols. For example, a handshake controller for one or more charging protocols includes: a port detection unit connected to a plurality of USB ports and configured to generate a detection signal; a port selection unit configured to receive the detection signal and connected to the plurality of USB ports; an interface unit connected to the port selection unit; and a digital handshake unit connected to the interface unit; wherein the port detection unit is further configured to: determine whether a single USB port of the plurality of USB ports is connected to a load device.

Abstract: Chip package and method thereof. For example, a chip package of a charging controller chip for a USB charger includes: a high-side main transistor including a first drain, a first gate and a first source, the first drain being configured to receive an input voltage; a low-side main transistor including a second drain, a second gate and a second source, the second source being configured to receive a ground voltage, the second drain being connected to the first source and a first coil terminal of an inductive coil, the inductive coil further including a second coil terminal; one or more port main transistors, each port main transistor of the one or more port main transistors including a third drain, a third gate and a third source, the third drain being biased to a converter voltage and connected to the second coil terminal of the inductive coil.

Abstract: Chip package and method thereof. For example, a chip package of a charging controller chip for a USB charger includes: a high-side transistor including a first drain, a first gate and a first source; a low-side transistor including a second drain, a second gate and a second source, the low-side transistor being connected to the high-side transistor; one or more port transistors corresponding to one or more USB output ports respectively, each port transistor of the one or more port transistors including a third drain, a third gate and a third source; a controller coupled to the high-side transistor, the low-side transistor, and the one or more port transistors; a first chip base; a second chip base electrically insulated from the first chip base; a third chip base electrically insulated from the first chip base and electrically insulated from the second chip base.

Abstract: System and method for detecting one or more currents. For example, a system for detecting one or more currents includes: one or more current sampling units coupled to one or more terminal transistors respectively and configured to sample one or more terminal currents that flow between a system terminal of a power management system and one or more port terminals through the one or more terminal transistors respectively; one or more operational amplifiers coupled to the one or more current sampling units respectively and configured to generate one or more detection currents respectively, the one or more detection currents representing one or more magnitudes of the one or more terminal currents respectively; and a signal combiner configured to receive the one or more detection currents, generate a combined detection voltage representing a sum of the one or more magnitudes of the one or more terminal currents.

Abstract: Handshake controller and handshake control method for one or more charging protocols. For example, a handshake controller for one or more charging protocols includes: a port detection unit connected to a plurality of USB ports and configured to generate a detection signal; a port selection unit configured to receive the detection signal and connected to the plurality of USB ports; an interface unit connected to the port selection unit; and a digital handshake unit connected to the interface unit; wherein the port detection unit is further configured to: determine whether a single USB port of the plurality of USB ports is connected to a load device.