Single High-Voltage Generator for Laser Printer Voltage Regulation
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Solution Overview
Problem
Existing laser printer systems require multiple independent high-voltage DC power supplies, resulting in complex structures, large volumes, and high costs due to the use of multiple high-voltage transformers and transistors.
Innovation Solution
A voltage regulation control system comprising a high voltage generator, positive and negative high voltage control circuits, coupling filter circuits, and a DC component control unit, which uses a single high-voltage generator to produce adjustable wide-range positive and negative high voltages through a closed-loop feedback mechanism, reducing complexity and cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple independent high-voltage DC power supplies are used, then each power supply can be independently adjusted, but the structure becomes complex and volume increases
Solution Approach 1:
The patent combines multiple independent high-voltage DC power supplies into a single integrated power supply system. The single system includes a high-voltage generator, coupling filter circuits, and multiple regulating units that work together to provide independently adjustable positive and negative high-voltage outputs, thereby reducing structural complexity while maintaining adaptability
Solution Approach 2:
The single high-voltage DC power supply is designed with multi-functionality to perform the roles of multiple independent power supplies. It includes multiple regulating units (first positive high voltage regulating unit, second positive high voltage regulating unit, negative high voltage regulating unit) that can independently control different output voltages, enabling one system to fulfill multiple functions
2Adaptability or versatility
If multiple independent high-voltage DC power supplies are used, then each power supply can be independently adjusted, but the volume becomes large
Solution Approach 1:
The patent merges multiple power supply units into a single compact system by sharing common components such as the high-voltage generator and coupling filter circuits. This integration significantly reduces the overall volume while maintaining the capability for independent adjustment of different voltage outputs through dedicated regulating units
3Adaptability or versatility
If multiple independent high-voltage generators are used, then multiple adjustable high-voltage DC power supplies can be obtained, but the cost increases
Solution Approach 1:
The patent consolidates multiple high-voltage generators into a single high-voltage generator that serves the entire system. This single generator is paired with multiple regulating units that can independently control different voltage outputs, thereby reducing component costs while maintaining the capability to provide multiple adjustable power supplies
Solution Approach 2:
The single high-voltage generator is designed with multi-functionality to support multiple regulating units. Each regulating unit can independently control different voltage levels for different loads, enabling one generator to fulfill the role of multiple generators and significantly reducing system cost
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 achieves a wide output range, strong load capacity, low power consumption, and high reliability, enabling a single high-voltage generator to provide multi-channel adjustable voltages with a simple structure and low implementation costs.
Implementation Method 1
A high voltage winding of a high voltage transformer of the high voltage generator is respectively connected to the first coupling filter circuit and the second coupling filter circuit
Implementation Method 2
The first coupling filter circuit comprises a first capacitor, a second capacitor, a first diode, a second diode, a first resistor, and a first zener diode
Implementation Method 3
The first coupling filter circuit comprises a first capacitor, a second capacitor, a first diode, a second diode
Data Source
AI summary
The present disclosure provides a voltage regulation control system including a high voltage generator, a positive and negative high voltage control circuit, a first coupling filter circuit, a second coupling filter circuit, a positive high voltage regulating unit, and a DC component control unit. The first coupling filter circuit includes a first AC coupling unit and a first rectifier filter unit. The second coupling filter circuit includes a second AC coupling unit and a second rectifier filter unit. A high voltage winding of a high voltage transformer of the high voltage generator is respectively connected to the first coupling filter circuit and the second coupling filter circuit. The positive and negative high voltage control circuit is respectively connected to the DC component control unit and the positive high voltage regulating unit. The first coupling filter circuit is connected to the positive high voltage regulating unit.