Power transfer controller, power transfer system and power transfer method

Abstract

A battery power transfer controller, method and system are disclosed. The controller includes: the first port provides a first signal to enable a direct path, so that electric energy is transmitted from the interface to the battery for charging the battery; the second port provides a second signal to enable a conversion circuit, so that the input power received by the interface is converted and the control circuit determines whether the first adapter or the second adapter is connected to the interface, if the second adapter is connected to the interface, the control circuit generates a second signal, if the first adapter is connected to the interface , the control circuit generates a first signal and a request, and provides the request to the first adapter through the interface, wherein the request includes information indicating a target value and instructions, and the instructions require the first adapter to provide electrical energy with a target value to the interface. The invention can be compatible with fast charging and normal charging according to the type of the adapter and the type of the external portable device, thereby improving the charging efficiency.

Description

technical field [0001] The invention relates to the field of electric energy transmission, in particular to charging of batteries, including technologies of fast charging and ordinary charging of batteries. Background technique [0002] figure 1 Shown is a block diagram of an existing power transfer system 100 for transferring power to a battery 108 . Such as figure 1 As shown, the power transfer system 100 includes an adapter 102 and a host device 104 . The host device 104 includes a power-delivery interface 142 (power-delivery interface, PD interface for short), a power conversion circuit 110 (such as a switching charger), a controller 106 and a system circuit. The power conversion circuit 110 includes a switch circuit (for example, including a high switch 112 and a low switch 116 ), an inductor 114 , and a filter circuit, such as a capacitor 118 . In practical applications, the adapter 102 converts the AC input voltage V AC Converted to DC output voltage V DC , and ...

AI Technical Summary

Problems solved by technology

Therefore, the voltage on the power conversion circuit 110 is relatively high, which also makes the power consumption of the power conversion circuit 110 high.

Moreover, the energy consumption of the electric energy conversion circuit 110 will be converted into a large amount of heat, causing the temperature of the electric energy conversion circuit 110 and the battery 108 to increase, which will cause the deterioration of the battery 108 and reduce the service life of the battery 108

Additionally, inductors (or switches) capable of supporting large currents and / or voltages are usually large and expensive

Therefore, the size of the printed circuit board (printed circuit board, printed circuit board) of the power conversion circuit 110 including the inductor 114 and the switches 112 and 116 is relatively large, and the cost is correspondingly high.

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