Charging Circuit Voltage Drop Control for Power Loss Reduction
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Solution Overview
Problem
Conventional charging systems face inefficiencies in power utilization and hardware costs, and lack effective protection against voltage drops, which can lead to abnormal events.
Innovation Solution
A high efficiency charging system with a power supplier and receiver connected through transmission wires, featuring a voltage conversion circuit that adjusts output current based on voltage drop, and control circuits to manage input voltage and current, using a Low Drop Out (LDO) regulator to minimize power loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the input voltage is increased to improve charging speed, then the charging power is improved, but the voltage drop increases causing power loss and efficiency degradation
Solution Approach 1:
The charging system dynamically adjusts the input voltage based on the voltage drop between input and output. The controller monitors the voltage difference and modulates the input voltage accordingly to maintain optimal charging power while minimizing power loss due to excessive voltage drop.
Solution Approach 2:
The system implements a feedback mechanism where the controller continuously senses the voltage drop between input and output voltages. Based on this feedback, the controller adjusts the input voltage to maintain efficient power transfer and prevent excessive power loss.
2Adaptability or versatility
If the voltage conversion circuit is designed to handle large voltage drops, then the adaptability is improved, but the power loss increases
Solution Approach 1:
The system dynamically adapts the input voltage level based on real-time voltage drop conditions rather than being designed for fixed large voltage drops. This dynamic adjustment maintains adaptability across different voltage conditions while minimizing power loss at each operating point.
Solution Approach 2:
The controller changes the input voltage parameter dynamically based on the sensed voltage drop. By adjusting this key parameter in real-time, the system achieves broad voltage adaptation capability while preventing excessive power loss that would occur with fixed high-voltage-drop designs.
3Productivity
If the output current is increased to improve charging efficiency, then the charging speed is improved, but the power loss due to voltage drop increases
Solution Approach 1:
The system dynamically balances output current and input voltage to maintain optimal charging efficiency. The controller monitors voltage drop and adjusts operating parameters in real-time to achieve high charging productivity while minimizing power loss from excessive current through high-voltage-drop conditions.
Solution Approach 2:
The controller adjusts both output current and input voltage parameters dynamically. By coordinating changes in these parameters based on voltage drop conditions, the system maintains high charging efficiency while preventing excessive power loss that would result from high current through large voltage drops.
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
The system optimizes power utilization efficiency by controlling voltage drops and reducing power loss, maintaining efficient charging while protecting circuits from abnormal events.
Implementation Method 1
the voltage conversion circuit includes a Low Drop Out (LDO) regulator
Data Source
AI summary
The present invention discloses a high efficiency charging system and a charging circuit therein. The high efficiency charging system includes a power supplier and a power receiver, which are connected via a transmission wire so that power is transmitted from the power supplier to the power receiver. The power receiver includes a voltage conversion circuit and a control circuit. The voltage conversion circuit converts an adjustable input voltage provided by the power supplier to an output voltage and generates an output current for charging a battery. The voltage conversion circuit adaptively adjusts the output current according to a voltage drop between the adjustable input voltage and the output voltage. The control circuit senses the adjustable input voltage and the output voltage and instructs the power supplier to adjust the output voltage according to the voltage drop between the adjustable input voltage and output voltage.