Voltage-Adjustable Charging Circuit for Efficient Battery Management
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Summary
Problems
Existing electronic devices lack an efficient voltage-adjustable charging circuit that can effectively manage input voltages to optimize battery charging, particularly when dealing with varying input voltages from external power sources.
Innovation solutions
The proposed electronic device incorporates a charging circuit comprising multiple buck circuits and a boost circuit, allowing for the adjustment of input voltage by using a combination of buck and boost operations. This configuration enables the charging circuit to adapt to different input voltages and ensure optimal battery charging.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If a fixed voltage charging circuit is used, then the charging voltage is stable and reliable, but it cannot adapt to different battery types and charging requirements
Why choose this principle:
The charging circuit uses a switchable voltage selection mechanism that allows dynamic switching between different voltage levels (5V, 9V, 12V) based on battery requirements. This dynamic adaptability enables the circuit to handle different battery types while maintaining a relatively simple overall structure through controlled switching rather than multiple dedicated circuits.
Principle concept:
If a fixed voltage charging circuit is used, then the charging voltage is stable and reliable, but it cannot adapt to different battery types and charging requirements
Why choose this principle:
The circuit changes its operating voltage parameter based on detection results. The control unit adjusts the charging voltage from a fixed value to variable values (5V/9V/12V) by switching between different voltage generation circuits, enabling adaptation to different battery types through parameter modification rather than structural complexity.
Application Domain
Data Source
AI summary:
The proposed electronic device incorporates a charging circuit comprising multiple buck circuits and a boost circuit, allowing for the adjustment of input voltage by using a combination of buck and boost operations. This configuration enables the charging circuit to adapt to different input voltages and ensure optimal battery charging.
Abstract
This electronic device may comprise a charging circuit which supplies power to a battery, wherein: the charging circuit comprises a first buck circuit including a first switching element and a second switching element, a second buck circuit including a third switching element and a fourth switching element, and a boost circuit including a fifth switching element and a sixth switching element; an input voltage is applied to an input node of the first switching element and an input node of the third switching element; one end of a first inductor is connected to a first connection node between the first switching element and the second switching element of the first buck circuit; one end of a second inductor is connected to a second connection node between the third switching element and the fourth switching element of the second buck circuit; the other end of the first inductor and the other end of the second inductor are connected to a third connection node between the fifth switching element and the sixth switching element of the boost circuit; and the fifth switching element is connected in parallel to the battery and a capacitor.