Intermediate-Potential Regulator Circuit With Low-Current Control
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Solution Overview
Problem
Existing technologies require a large current to generate an intermediate potential, which is inefficient and may lead to increased power consumption.
Innovation Solution
A regulator and power device design utilizing a reference potential generation circuit, differential amplifier, and transistors to control the intermediate potential with a small current, allowing for low-voltage element usage and reduced current flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by stationary object
If a Zener diode is used to generate an intermediate potential, then the intermediate potential can be generated, but a large current is required which increases power consumption
Solution Approach 1:
The patent changes the operating parameters of the circuit by using a differential amplifier with a low potential side power supply set to a specific voltage level (lower than the intermediate potential). This parameter change allows the circuit to operate with reduced current while maintaining the intermediate potential generation function, thereby reducing power consumption.
Solution Approach 2:
The patent introduces a differential amplifier as an intermediary component between the power supply and the load. This intermediary amplifies the voltage difference and enables voltage regulation without requiring large currents, thus solving the contradiction between power consumption and current quantity.
2Productivity
If a large current is used to generate intermediate potential, then the potential can be maintained, but the circuit scale increases and efficiency decreases
Solution Approach 1:
By changing the voltage parameter of the low potential side power supply to be lower than the intermediate potential, the circuit achieves efficient operation with reduced current. This parameter optimization improves productivity while minimizing current consumption.
3Ease of operation
If conventional voltage regulation methods are used, then voltage control is achieved, but the circuit complexity and current requirements increase
Solution Approach 1:
The differential amplifier serves multiple functions: it amplifies the voltage difference, regulates the intermediate potential, and operates with a low potential side power supply. This multi-functionality simplifies the overall circuit design while maintaining ease of voltage control.
Data Source
AI summary
A regulator includes a reference potential generation circuit that generates a reference potential serving as a reference for an intermediate potential and an intermediate potential lower than the intermediate potential, a differential amplifier to which the intermediate potential is supplied as a low potential side power supply and which amplifies a difference voltage between a feedback potential corresponding to the intermediate potential and the reference potential, and a transistor having a gate to which the amplified difference voltage is input, a drain connected to a ground potential via a constant current source or a resistor, and a source that generates the intermediate potential.