A high-precision temperature detection circuit

CN224552541UActive Publication Date: 2026-07-24NANJING PUTIAN DATANG INFORMATION ELECTRONICS
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Patent Information

Application Number
CN202521379519.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-01
Publication Date
2026-07-24
Estimated Expiration
2035-07-01

AI Technical Summary

Technical Problem

Existing high-precision temperature detection circuits suffer from high power consumption, complex manufacturing processes, and poor real-time performance. Furthermore, inconsistent signal delays in traditional designs lead to error accumulation.

Method used

A segmented quantization module is adopted, which is triggered by the rising edge of the external periodic signal and ends by the falling edge of the internal signal. Combined with a delay inverting circuit, the switching state is precisely adjusted to realize the segmented quantization of the signal, and the signal is processed for different gain coefficients through multiple quantization channels.

Benefits of technology

It improves detection accuracy, reduces power consumption, simplifies circuit structure, enhances circuit stability and applicability, and avoids accuracy loss due to insufficient dynamic range.

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Abstract

The utility model discloses a high accuracy temperature detection circuit, it includes signal conditioning module, clock synchronization module and sectional type quantization module. Sectional type quantization module starts through the rising edge of external periodic signal, the falling edge of internal signal ends, ensures that the quantization result is accurate, optionally, contains multiple quantization channels and control unit, adjusts the switch state through delay inversion circuit accurately, and optimizes quantization process. The present application can reduce the power consumption, simplify the manufacturing process, improve real -time and the flexibility of the scope of application, reduce the dependence on complex calibration algorithm simultaneously, provide brand -new solution for high accuracy temperature detection.
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