Power supply control apparatus

The patent replaces the direct temperature detection approach with an indirect calculation method. Instead of using a temperature detection unit physically connected to the heating wire, the system calculates temperature based on current detection data and thermal characteristics. This substitution eliminates the need for direct physical connection while maintaining temperature control capability, thereby resolving the contradiction between measurement precision and arrangement flexibility.

The patent introduces current detection units and a processing unit as intermediaries between the heating wire and the control system. Rather than directly measuring temperature at the heating wire location, the system measures current flow and uses processing units to calculate temperature based on thermal models. This intermediary approach allows temperature monitoring without requiring direct physical attachment to the heating wire, improving arrangement flexibility while maintaining control accuracy.

The patent replaces complex temperature detection hardware with a simplified calculation-based system. Instead of installing temperature sensors in direct contact with the heating wire, the system uses existing current detection units combined with processing algorithms to monitor temperature in real-time. This substitution reduces the number of physical components required while maintaining reliable temperature monitoring capability.

The system uses its own current detection and processing capabilities to derive temperature information without requiring separate temperature sensing hardware. The processing unit leverages the electrical characteristics already being measured (current flow) and applies thermal models to self-determine temperature, eliminating the need for additional dedicated temperature detection components and simplifying the overall system.