Voltage Regulator With Delay Signal Generator For Stable Output
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Solution Overview
Problem
Existing voltage regulators in electronic devices, such as wireless transceivers, fail to provide stable output voltage during varying load conditions and temperature-dependent turn-on and turn-off response times, leading to inconsistent signal characteristics during communication bursts.
Innovation Solution
A voltage regulator that generates delay signals with distinct delay times in response to an external power-on burst signal, adjusts equivalent resistance, and regulates output voltage through feedback voltage division to maintain a stable output voltage, allowing for arbitrarily shaped voltage waveforms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional voltage regulator is used to provide stable output voltage, then the output voltage can be stabilized at its original level, but the regulator cannot provide sequentially and arbitrarily shaped regulated voltage with distinct delay times
Solution Approach 1:
The voltage regulator circuit is segmented into multiple independent delay signal generation paths, each with its own delay element and control mechanism. This allows the circuit to generate multiple delay signals with distinct delay times sequentially, enabling arbitrary voltage waveform shaping while maintaining modular circuit architecture that manages complexity.
Solution Approach 2:
The voltage regulator employs dynamic control mechanisms where delay times and voltage division ratios can be adjusted in real-time based on control signals. This dynamic adaptability allows the regulator to generate sequentially and arbitrarily shaped voltage waveforms by dynamically switching between different delay paths and feedback configurations.
2Reliability
If the voltage regulator responds to sudden load current changes, then the output voltage can be stabilized quickly, but temperature-dependent turn-on and turn-off response times cause inconsistent signal characteristics during communication bursts
Solution Approach 1:
The voltage regulator implements preliminary action by generating delay signals in advance with predetermined delay times before the actual load change occurs. This allows the regulator to pre-compensate for temperature-dependent response variations, ensuring consistent signal characteristics during communication bursts by having the voltage adjustment ready before the temperature effect manifests.
Solution Approach 2:
The circuit employs feedback mechanisms where the output voltage is monitored and compared against reference levels, and the delay signal generation is adjusted based on this feedback. This closed-loop control compensates for temperature-dependent response time variations by dynamically adjusting delay parameters to maintain consistent signal characteristics regardless of temperature changes.
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
This solution ensures stable output voltage and consistent signal characteristics during communication bursts by compensating for temperature-dependent turn-on and turn-off response times, improving the transient response and maintaining unvarying signal characteristics.
Implementation Method 1
generate a feedback voltage by voltage-dividing the output voltage according to the equivalent resistance
Data Source
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AI summary
A voltage regulator (30) includes an amplifier (310), a power device (320), a delay signal generator (340), and a voltage-generating circuit (330). The amplifier (310) generates a control signal according to a reference voltage and a feedback voltage. The power device (320) generates the output voltage by regulating the output current according to the switch control signal. The delay signal generator (340) generates a plurality of sequential delay signals each having distinct delay time with respect to an externally applied power-on burst signal. The voltage-generating circuit (330) provides an equivalent resistance for generating the feedback voltage corresponding to the output voltage, and regulates the output voltage by adjusting the equivalent resistance according to the plurality of sequential delay signals.