Switching Power Control Circuit with Digital Compensator
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Solution Overview
Problem
Existing switching power control circuits require multiple components and complex programming to switch between different control schemes, increasing circuit size and operational complexity.
Innovation Solution
A single IC-based switching power control circuit incorporating an analog-to-digital converter, digital compensator, pulse generating circuit, and registers that can switch between various control schemes using a simple ON/OFF signal and control scheme selection signal, allowing for efficient operation without increasing circuit size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separate control circuits are used for different control schemes, then each control scheme can be implemented with dedicated hardware, but the circuit size and system complexity increase significantly
Solution Approach 1:
The patent combines multiple control schemes (full bridge, half bridge, push-pull, flyback, chopper, magnetic amp, forward) into a single integrated circuit. The control circuit includes a microcontroller, pulse generating circuits, and switching element drive circuits that can implement multiple control schemes through software configuration rather than requiring separate dedicated hardware for each scheme. This merging approach reduces the overall number of components while maintaining the reliability of each control scheme through dedicated control logic within the unified circuit.
Solution Approach 2:
The integrated control circuit is designed with universal functionality to support multiple control schemes. The pulse generating circuits and switching element drive circuits are configured to operate in different modes depending on the selected control scheme. The microcontroller can load different control parameters and switch between control schemes dynamically, making the circuit adaptable to various operating conditions without requiring separate dedicated circuits for each scheme.
2Adaptability or versatility
If multiple separate control circuits are used for different control schemes, then each control scheme can be optimized independently, but the number of components and programming complexity increase
Solution Approach 1:
The control circuit incorporates multiple pulse generating circuits and switching element drive circuits that can be configured through software to implement different control schemes. This allows the same hardware to be adapted to various control schemes (full bridge, half bridge, push-pull, flyback, chopper, magnetic amp, forward) without requiring separate dedicated hardware for each scheme, thereby maintaining adaptability while simplifying manufacturing.
Solution Approach 2:
The control circuit allows switching between different control schemes by changing control parameters stored in memory rather than requiring physical reconfiguration of the circuit. The microcontroller can load different control parameters and switch between control schemes dynamically, enabling adaptability through software parameter changes instead of hardware modifications, which simplifies manufacturing and reduces component count.
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
Enables seamless switching between multiple control schemes, such as full bridge, half bridge, and push-pull schemes, using a single IC, simplifying operations and reducing circuit complexity while maintaining efficiency.
Implementation Method 1
an analog-to-digital converter (ADC) configured to convert an analog direct current (DC) voltage into a digital voltage
Implementation Method 2
a digital compensator configured to set a gain and phase characteristics of the digital voltage output from the ADC and output a digital compensation value
Implementation Method 3
a pulse generating circuit configured to generate at least one driving signal based on the digital compensation value
Implementation Method 4
a full bridge circuit is connected to a primary side of a transformer while a push-pull circuit is connected to a secondary side thereof
Data Source
AI summary
A switching power control circuit includes an analog-to-digital converter (ADC) configured to convert an analog direct current (DC) voltage into a digital voltage; a digital compensator configured to set a gain and phase characteristics of the digital voltage output from the ADC and output a digital compensation value; and a pulse generating circuit configured to generate at least one driving signal based on the digital compensation value, wherein the pulse generating circuit is switched by an ON/OFF signal for turning on or off an output of the driving signal from the pulse generating circuit and a control scheme selection signal for selecting a predetermined driving signal from the driving signal.