Bi-directional Transmitter Receiver Pin Integration
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Solution Overview
Problem
Existing IC packages with integrated NTC thermistors for temperature sensing require additional pins for both temperature information transmission and control signal reception, increasing package cost.
Innovation Solution
A bi-directional transmitter/receiver and driving circuit that integrates a temperature sensor and Schmitt trigger, allowing temperature sensing and external control signal reception through a single pin, eliminating the need for separate pins and NTC thermistors, while using logic operators and transistors to control switching operations and protection mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate NTC thermistors and pins are used for temperature sensing and control signal reception, then temperature monitoring and control functions are achieved, but package cost increases
Solution Approach 1:
The patent combines the temperature sensor and control signal receiver functions into a single integrated bi-directional transmitter/receiver circuit that operates through one pin. This merging eliminates the need for separate NTC thermistors and additional pins, thereby reducing package complexity and manufacturing cost while maintaining both temperature monitoring and control signal reception capabilities
Solution Approach 2:
The bi-directional transmitter/receiver circuit performs multiple functions: it senses temperature, transmits temperature information to the main control circuit, and receives control signals from the main control circuit all through a single pin. This multi-functionality replaces what previously required separate dedicated components and pins
2Loss of information
If additional pins are used for temperature information transmission and control signal reception, then complete communication is achieved, but device complexity increases
Solution Approach 1:
The patent employs a bi-directional transmitter/receiver that dynamically switches between transmitting temperature information and receiving control signals through the same pin. This dynamic time-division multiplexing approach allows complete communication functionality with a single pin, reducing device complexity while maintaining communication completeness
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables temperature sensing and control signal reception without increasing package cost, providing a cost-effective solution for IC packages by integrating temperature sensing and control functions within a single pin interface.
Implementation Method 1
a temperature sensor which is connected to the pin, and which senses temperature and outputs temperature information to the pin
Data Source
AI summary
A bi-directional transmitter/receiver according to an embodiment includes a pin connected with a main control circuit, a transistor connected with a first electrode to the pin, a Schmitt trigger which determines an output according to a voltage of the pin, and a temperature sensor which is connected to the pin and which senses temperature and outputs temperature information to the pin. A driving circuit for controlling switching operation of one or more switches includes a bi-directional transmitter/receiver.