High Voltage Power Supply PWM Control and Feedback
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Solution Overview
Problem
Conventional high voltage power supplies require multiple pulse width modulation signals and offline tuning, burdening the engine controller and necessitating re-tuning when the output load changes, leading to increased manufacturing time and complexity.
Innovation Solution
A high voltage power supply system that includes a PWM generation part to generate pulse width modulation signals based on an output control value, a high voltage transformation part to boost and rectify the signal, and a feedback mechanism to maintain constant high voltage output, allowing for serial communication and automatic adjustment of high voltage output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple pulse width modulation signals are generated to control multiple high voltage outputs, then the high voltage power supply can serve multiple development devices, but the engine controller becomes greatly burdened
Solution Approach 1:
The patent extracts the PWM signal generation function from the engine controller and relocates it to a dedicated high voltage power supply controller. This separation removes the burden from the engine controller while maintaining the capability to generate multiple PWM signals for controlling multiple high voltage outputs, thus resolving the contradiction between versatility and controller complexity.
2Ease of manufacture
If offline setting with variable resistance is used to set high voltage output, then the high voltage output can be configured, but re-tuning is required when output load changes, increasing manufacturing time and complexity
Solution Approach 1:
The patent implements a feedback mechanism where the high voltage power supply controller continuously monitors the output load and automatically adjusts the PWM signal parameters to maintain stable high voltage output. This eliminates the need for manual re-tuning when loads change, as the system self-adjusts based on real-time feedback, resolving the contradiction between ease of initial setup and adaptability to load changes.
Solution Approach 2:
The system transitions from static offline setting with fixed variable resistance to dynamic automatic adjustment. The high voltage power supply controller dynamically modifies PWM signal characteristics in real-time based on detected load conditions, enabling the system to adapt to various loads without manual intervention and eliminating manufacturing complexity associated with preconfiguration.
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 solution reduces the burden on the engine controller, allows for constant high voltage output independent of the output load, and eliminates the need for offline setting, enabling efficient and flexible operation with various devices.
Implementation Method 1
a high voltage transformation part to boost and rectify the signal
Data Source
AI summary
A high voltage power supply and a high voltage power control method thereof. The high voltage power supply includes a high voltage generation part to generate a high voltage, and a pulse width modulation (PWM) generation part to generate a pulse width modulation signal according to an output control value and to control the high voltage generation part to generate the high voltage using the generated pulse width modulation signal, when a high voltage output setting signal having the output control value is received by the PWM generation part to indicate the high voltage to be generated. Therefore, it is possible to automatically output a high voltage as desired without requiring an offline setting. In addition, although a voltage set and/or an output load are changed, the changed voltage set and/or the output load are automatically compensated so that a constant high voltage output can be output with a variety of different devices having different loads and power requirements.