Semiconductor Resistor-Setting Circuit With Switched Reference Voltages
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Solution Overview
Problem
Existing semiconductor devices rely on external resistors to determine operations, which limits flexibility and efficiency in adjusting output voltages, as resistance values of these external resistors are fixed.
Innovation Solution
A semiconductor device incorporating a constant current circuit, direction control circuit, and reference voltage circuit to dynamically adjust fixed voltages at one end of a set resistor, allowing for various operations by switching these voltages and controlling current direction, with a comparator to determine operations based on voltage comparisons.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If external resistors with fixed resistance values are used to determine operations, then the device structure is simple, but the adaptability and flexibility are limited
Solution Approach 1:
The patent implements dynamic voltage switching at the first end of the set resistor through a voltage switching circuit controlled by a control unit. This allows the fixed voltage to be dynamically changed to different voltage levels based on operational requirements, enabling the same circuit to perform multiple operations without changing external components. The dynamic voltage adjustment provides adaptability while maintaining a relatively simple circuit structure.
Solution Approach 2:
The patent makes the voltage switching circuit and control unit universal by designing them to handle multiple voltage levels and operational modes. The control unit can interpret different resistance values of the set resistor and combine them with switched voltages to determine various operations, making the circuit capable of performing multiple functions with a single configuration rather than requiring separate circuits for each operation.
2Productivity
If external resistors are used to adjust output voltages, then the device is easy to manufacture, but the efficiency in adjusting output voltages is reduced
Solution Approach 1:
The voltage switching circuit enables dynamic adjustment of the voltage at the first end of the set resistor, allowing the output voltage to be efficiently adjusted by switching between different voltage levels. This dynamic control provides faster and more flexible voltage adjustment compared to fixed external resistors, improving productivity while the integrated design keeps manufacturing complexity manageable.
Solution Approach 2:
The patent changes the voltage parameter dynamically through the voltage switching circuit instead of relying on fixed resistance values. By switching the voltage level at the first end of the set resistor, the system can efficiently adjust output voltages for different operations. The control unit selects appropriate voltage levels based on the detected resistance value and operational requirements, providing efficient voltage adjustment.
3Reliability
If fixed voltages are applied at one end of the set resistor, then the circuit is simple, but the responsiveness to power supply fluctuations is reduced
Solution Approach 1:
The control unit implements feedback by detecting the resistance value of the set resistor and using this information to determine the appropriate voltage level to switch to. This feedback mechanism allows the system to respond to changes in operating conditions and power supply fluctuations, maintaining reliability. The control unit adjusts the voltage switching based on the detected resistance value, creating a closed-loop control system that improves power supply stability.
Solution Approach 2:
The voltage switching circuit provides dynamic voltage adjustment in response to power supply fluctuations and operational changes. Instead of using fixed voltages, the system can switch between different voltage levels to maintain stable operation. This dynamic response improves reliability by adapting to power supply variations while the integrated control keeps the overall circuit complexity manageable.
Data Source
AI summary
A semiconductor device includes a constant current circuit configured to generate a constant current, and an operating circuit configured to perform an operation associated with a fixed voltage at a first end of a set resistor and a voltage at a second end of the set resistor through which a current corresponding to the constant current flows. The voltage at the second end of the set resistor is a voltage corresponding to the current flowing through the set resistor, and different operations of the operating circuit are associated with different fixed voltages at the first end of the set resistor.