| 摘要 |
A power classification circuit is provided. The circuit includes a control circuit, a current sensor, and an indicator signal, and a voltage source. The control circuit is configured to control the voltage source to provide a first predetermined classification voltage, detect a first classification current, provide a predetermined indexing voltage, and control the at least one voltage source to provide a second predetermined classification voltage and detect a second classification current. The control circuit is configured to detect the first classification current within a classification current range, detect a draw down current outside of the classification current range, and detect the second classification current within the classification current range. The control circuit is further configured to set the indicator signal to a first predetermined state indicating a power type based on the detected first classification current, draw down current, and the second classification current. |
| 主权项 |
1. A power classification circuit, comprising:
a control circuit; a current sensor coupled to the control circuit; and at least one voltage source coupled to the control circuit, wherein the control circuit is configured to, in sequence:
control the at least one voltage source to provide a first predetermined classification voltage and in response:
detect, by the current sensor, a first classification current;control the at least one voltage source to provide a predetermined indexing voltage; andcontrol the at least one voltage source to provide a second predetermined classification voltage and in response:
detect, by the current sensor, a second classification current; wherein the control circuit, responsive to the current sensor, is configured to:
detect the first classification current within a classification current range defined by a lower classification current limit and upper classification current limit;detect, after detecting the first classification current, a draw down current outside of the classification current range; anddetect, after detecting the draw down current, the second classification current within the classification current range, wherein the control circuit is further configured to set an indicator signal to a first predetermined state indicating a power type based on the detected first classification current, draw down current and the second classification current. |
