Buck Converter Ton Pulse Profiling for SoC Power Demand
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Microcontrollers face challenges in maintaining low power modes due to interactions with sensors and peripherals, leading to increased power consumption and limited operational time, despite existing power management protocols.
Innovation Solution
A system that uses a count of Ton pulses in a buck converter to determine power requirements for devices, allowing for adjustments in the duration of Ton pulses to optimize power delivery and reduce consumption, integrated within a system on chip architecture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If power mode switching is used to reduce microcontroller power consumption, then power usage is reduced, but operational time is limited due to peripheral interactions
Solution Approach 1:
The system performs preliminary action by counting Ton pulses before and during peripheral operations to predict and prepare for upcoming power consumption events. This allows the microcontroller to anticipate when it needs to exit low power mode, reducing unnecessary wake-ups and extending operational time while maintaining accurate power management.
Solution Approach 2:
The system implements feedback by continuously monitoring Ton pulse counts from the buck converter and using this information to dynamically adjust power mode decisions. The controller receives feedback about actual power consumption patterns and adapts its power management strategy accordingly, balancing power savings with operational requirements.
2Power
If Ton pulse duration is increased to meet power requirements, then power delivery is sufficient, but power consumption increases
Solution Approach 1:
The system applies dynamics by making the Ton pulse duration adjustable and adaptive rather than fixed. The buck converter dynamically modifies pulse width based on actual load requirements detected through Ton pulse counting, allowing optimal power delivery that matches real-time demands and minimizes energy waste.
Solution Approach 2:
The system changes parameters by adjusting the Ton pulse width (duration) based on measured power requirements. By varying this critical parameter according to actual device needs, the system delivers sufficient power when required while minimizing power consumption during lower-demand periods.
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 approach enables efficient power management by accurately determining power needs and adjusting the buck converter's output, thereby extending operational time and reducing power consumption in microcontroller systems.
Implementation Method 1
a buck converter 210 that supplies an output voltage 340 to enable the device 370
Data Source
AI summary
A system for determining a power requirement for a device powered by a buck converter on a system on chip based on Time on pulses (Ton) is disclosed. A buck converter supplies output voltage to enable the device. The buck converter is driven by a Ton pulse generator generating Ton pulses to control charging of a load capacitor. A counter counts the Ton pulses during the supply of output voltage while the device is enabled. A controller is coupled to the counter and the buck converter. The controller determines the power requirement for the device based on the count of the Ton pulses. The power requirement may be used to adjust the trim value to change the width of the Ton pulses for greater energy efficiency.