Abstract: A package includes a substrate having a conductive layer, and the conductive layer comprises an exposed portion. A die stack is disposed over the substrate and electrically connected to the conductive layer. A high thermal conductivity material is disposed over the substrate and contacting the exposed portion of the conductive layer. The package further includes a contour ring over and contacting the high thermal conductivity material.

Abstract: An electronic device includes an energy storage unit, a charge pump circuit, a charging circuit, and a controller. The charge pump circuit is electrically connected to the power supply, and the power supply is configured to receive the input electrical energy. The charging circuit is electrically connected between the charge pump circuit and the energy storage unit. The controller is electrically connected with the power supply, the charge pump circuit, and the charging circuit respectively, and the controller controls the charge pump circuit and the charging circuit to switch among a plurality of charging modes according to compatibility information of the power supply.

Abstract: A charging circuit applied to a post-stage circuit includes a power converting circuit, a power storage circuit, a switching circuit and a processing circuit. The power converting circuit receives an external voltage and converts the external voltage to a charging voltage. The power storage circuit is coupled to the power converting circuit and receives the charging voltage to store the power. The switching circuit is coupled to the power converting circuit and the power storage circuit. The processing circuit is coupled to the switching circuit and controls the charging circuit operated in a first mode or a second mode. When operated in the first mode, the external voltage supplies power to the post-stage circuit. When operated in the second mode, the charging voltage supplies power to the post-stage circuit.

Abstract: A charging circuit applied to a post-stage circuit includes a power converting circuit, a power storage circuit, a switching circuit and a processing circuit. The power converting circuit receives an external voltage and converts the external voltage to a charging voltage. The power storage circuit is coupled to the power converting circuit and receives the charging voltage to store the power. The switching circuit is coupled to the power converting circuit and the power storage circuit. The processing circuit is coupled to the switching circuit and controls the charging circuit operated in a first mode or a second mode. When operated in the first mode, the external voltage supplies power to the post-stage circuit. When operated in the second mode, the charging voltage supplies power to the post-stage circuit.

Abstract: An electronic device includes an energy storage unit, a charge pump circuit, a charging circuit, and a controller. The charge pump circuit is electrically connected to the power supply, and the power supply is configured to receive the input electrical energy. The charging circuit is electrically connected between the charge pump circuit and the energy storage unit. The controller is electrically connected with the power supply, the charge pump circuit, and the charging circuit respectively, and the controller controls the charge pump circuit and the charging circuit to switch among a plurality of charging modes according to compatibility information of the power supply.