Electronic Device Driving Circuit Voltage Compensation
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Solution Overview
Problem
Existing electronic devices rely on boosted voltage to generate signals, which can be inefficient and require complex circuitry, limiting operational reliability and increasing device size.
Innovation Solution
An electronic device with a driving circuit, a boost circuit, and a compensating circuit that generates a boosted signal using normal activation levels, simplifying the circuit and reducing the need for external voltage generators, and utilizing the same type of transistors for switching elements to simplify fabrication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If boosted voltage is used to generate signals, then signal activation level is improved, but device complexity and size increase due to complex boost voltage generation circuitry
Solution Approach 1:
The patent changes the voltage level parameter by using a normal voltage signal (e.g., 1.2V) and transforming it through capacitor coupling and switching operations to generate the required boosted signal levels, eliminating the need for dedicated boost voltage generation circuitry while maintaining signal activation requirements
Solution Approach 2:
The patent uses capacitor coupling to copy and transfer voltage characteristics between different circuit nodes, where the capacitor charged during one phase is discharged to provide the boosted signal during another phase, replicating the voltage transformation function without complex circuitry
2Volume of stationary object
If normal activation level signals are used, then device size is reduced by eliminating external voltage generators, but voltage drop compensation becomes necessary
Solution Approach 1:
The patent implements a feedback mechanism where the control signal is regenerated and reinforced through capacitor coupling and switching operations, detecting the voltage drop condition and automatically compensating by transferring charged capacitor voltage to maintain the control signal at the required activation level
Solution Approach 2:
The patent performs preliminary charging of capacitors during specific phases (e.g., when switching elements are in predetermined states) so that when voltage drop compensation is needed, the pre-charged capacitors are already ready to provide the necessary voltage boost without delay
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 enhances operational reliability by compensating for voltage drops and reducing device size by eliminating the need for complex boost voltage generation, allowing for efficient signal boosting without occupying additional space.
Implementation Method 1
a first boost element coupled between the output node and a first node to which an output boost signal is inputted
Implementation Method 2
a second boost element coupled between the control node and a third node to which a third control signal is inputted
Data Source
AI summary
An electronic device includes a driving circuit suitable for driving an output node with an input voltage signal based on a control voltage applied to a control node, a boost circuit suitable for boosting voltage of the output node based on an output boost signal, and a compensating circuit suitable for applying the control voltage to the control node based on control signals to compensate for voltage drop caused by the driving circuit.