Open Loop DC-DC Converter Enable Disable Circuit
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Solution Overview
Problem
Existing power supplies with open loop DC to DC converters lack efficient control mechanisms to manage output voltage or current, leading to inefficiencies and potential over-operation during light load conditions.
Innovation Solution
Incorporating an enable/disable circuit that dynamically controls the open loop DC to DC converter based on determined DC output voltage or current levels, enabling the converter during low output conditions and disabling it during high output conditions to optimize operation and reduce losses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If an open loop DC to DC converter operates continuously without enable/disable control, then the converter maintains constant operation, but energy losses increase and efficiency decreases during light load conditions
Solution Approach 1:
The enable/disable circuit implements periodic action by alternately enabling and disabling the DC to DC converter based on output voltage/current thresholds. During light load conditions, the converter is disabled to reduce energy losses, and enabled when output levels drop below thresholds, creating a periodic on-off operation pattern that optimizes efficiency
Solution Approach 2:
The enable/disable circuit uses feedback from the output voltage or current to control the converter operation. The circuit continuously monitors output levels and uses this feedback to determine when to enable or disable the converter, creating a closed-loop control system that adapts to load conditions and minimizes energy losses
2Reliability
If an open loop DC to DC converter operates without output monitoring, then the structure remains simple, but over-voltage conditions and noise issues occur during light load conditions
Solution Approach 1:
The enable/disable circuit implements feedback control by monitoring output voltage or current levels and using this information to control converter operation. This feedback mechanism provides over-voltage protection by disabling the converter when output levels exceed safe thresholds, thereby improving reliability without requiring complex additional protection circuits
Solution Approach 2:
The converter system performs self-service through the enable/disable circuit that automatically monitors its own output and controls its operation accordingly. The circuit detects over-voltage conditions and autonomously disables the converter to protect the system, eliminating the need for separate complex protection mechanisms
Data Source
AI summary
Power supplies, power adapters, and related methods are disclosed. One example power supply includes an open loop DC to DC converter having an input for connecting to an input power source and an output for supplying a DC output voltage or current and an enable/disable circuit coupled to the open loop DC to DC converter. The enable/disable circuit is configured to enable and disable the open loop DC to DC converter as a function of the DC output voltage or current. One example method includes determining a DC output voltage or current from an open loop DC to DC converter and enabling and disabling the open loop DC to DC converter as a function of the determined DC output voltage or current.