POR/UVLO Timing Control for Stable Power Supply Transitions
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Solution Overview
Problem
Conventional power control systems, particularly POR/UVLO circuits, are inefficient and unstable, leading to unnecessary shutdowns and restarts due to temporary supply voltage fluctuations during load transitions, resulting in energy wastage and reduced system stability.
Innovation Solution
The implementation of a POR/UVLO circuit with a timing component that introduces a delay in generating control signals, reducing undesirable toggling and allowing for multiple threshold voltages to determine power system states, thereby preventing unnecessary shutdowns and improving stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional POR/UVLO circuits are used without timing delay, then the response to voltage fluctuations is immediate, but unnecessary shutdowns and restarts occur due to temporary supply voltage fluctuations
Solution Approach 1:
The timing component performs preliminary action by introducing a delay period before generating control signals in response to voltage threshold crossings. This preliminary timing action filters out transient fluctuations and prevents premature shutdown decisions, thereby improving system stability while accepting a controlled time delay.
2Measurement precision
If multiple threshold voltages are implemented with timing delay, then control precision is improved, but device complexity increases
Solution Approach 1:
The timing component acts as an intermediary between the voltage threshold detection and the control signal generation. It mediates the response by introducing a controlled delay, allowing the system to observe voltage conditions over time rather than reacting immediately, thereby improving detection precision without proportionally increasing overall circuit complexity.
3Loss of energy
If immediate control signals are generated for voltage threshold crossings, then productivity is maintained, but energy wastage occurs due to unnecessary shutdowns and restarts
Solution Approach 1:
The timing component performs preliminary verification by waiting for a specified duration before acting on voltage threshold crossings. This preliminary timing action distinguishes between transient fluctuations and genuine shutdown conditions, preventing unnecessary shutdowns that would waste energy and disrupt productivity.
Data Source
AI summary
System and method for providing stable control for power systems. According to an embodiment, the present invention provides an apparatus for providing one or more control signals for a power system. The apparatus includes an input terminal for receiving an electrical energy, which can be characterized by a first input voltage. The apparatus includes a control component that is configured to generate a first control signal based on at least information associated with the first input voltage. The apparatus additionally includes an output terminal for sending the first control signal. Moreover, the apparatus includes a timing component that is coupled to the control component. The control component is configured to process at least information associated with a first value of the first input voltage at a first time and a first reference voltage and to generate a second control signal.