Linear regulator circuit, memory circuit, and microprocessing chip

By designing a linear regulator circuit including an error amplification module, a voltage stabilization circuit and an output circuit, collecting the load current change rate and generating a suitable control signal, the problem of unstable output voltage in the high clock frequency circuit in the prior art is solved, and higher output voltage stability and effectiveness are achieved.

CN222636543UActive Publication Date: 2025-03-18SHANGHAI LINGFAN MICROELECTRONICS CO LTD
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Patent Information

Application Number
CN202420369188.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-02-27
Publication Date
2025-03-18
Estimated Expiration
2034-02-27

AI Technical Summary

Technical Problem

In the high clock frequency circuit, the existing linear regulator circuit has insufficient stability and effectiveness of output voltage when the load current jumps and temperature changes due to the fixed loop bandwidth, which may cause operation failure problems.

Method used

A linear voltage regulator circuit is designed, including an error amplification module, a voltage stabilization circuit and an output circuit. The error amplifier and the load detection module collect the load current change rate and generate a second control signal, so that the output transistor can output a stable voltage under the reasonable control of multiple control signals, reducing the impact of the output voltage by load changes.

Benefits of technology

Through this design, the problem of output voltage instability caused by load current jump and temperature changes is solved, the stability and effectiveness of the output voltage are improved, and the abnormal operation of the chip is avoided.

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Abstract

According to the linear voltage regulator circuit, the storage circuit and the micro-processing chip, through the design of the voltage stabilizing circuit, the load current change rate of the output end of the circuit can be collected, and a second control signal is generated according to the load current change rate; the output transistor can output stable voltage under the control of the second control signal and the first control signal from the error amplifier, and the influence of load change on the output voltage is reduced, so that the problem caused by load current jump is solved, and the stability and effectiveness of the output voltage are improved.
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