Systems and methods for adjusting input power and/or output power of charging systems

A system controller for changing an output power of a charging system that is configured to receive an input voltage and charge a device, the system controller comprising:

• a first controller terminal configured to receive a sensing voltage indicating a temperature;
• and
• a second controller terminal configured to provide a first current to affect the output power of the charging system;
• wherein the system controller is further configured to, if the sensing voltage indicates that the temperature is higher than a temperature threshold:
• in response to the temperature increasing, decrease the output power of the charging system;
• and
• in response to the temperature decreasing, increase the output power of the charging system.

A method for changing an input power of a charging system that is configured to receive an input voltage and charge a device, the method comprising:

• receiving a first voltage indicating a temperature;
• and
• outputting a second voltage to affect the input power of the charging system based on at least information associated with the temperature;
• wherein the outputting a second voltage to affect the input power of the charging system based on at least information associated with the temperature includes:
• if the first voltage indicates that the temperature is higher than a temperature threshold, in response to the temperature increasing, decreasing the input power of the charging system;
• and
• if the first voltage indicates that the temperature is higher than the temperature threshold, in response to the temperature decreasing, increasing the input power of the charging system.

A method for changing an output power of a charging system that is configured to receive an input voltage and charge a device, the method comprising:

• receiving a sensing voltage indicating a temperature;
• and
• providing a current to affect the output power of the charging system based on at least information associated with the temperature;
• wherein the providing a current to affect the output power of the charging system based on at least information associated with the temperature includes:
• if the sensing voltage indicates that the temperature is higher than a temperature threshold, in response to the temperature increasing, decreasing the output power of the charging system;
• and
• if the sensing voltage indicates that the temperature is higher than the temperature threshold, in response to the temperature decreasing, increasing the output power of the charging system.