DC Voltage Booster Parallel Capacitor for Radio Noise Suppression
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing DC voltage booster apparatuses experience voltage spikes that lead to radio noise and delays in rectifier diode response, affecting the precision of fuel injection control in internal combustion engines.
Innovation Solution
Incorporating a capacitor in parallel with the rectifier diode to absorb current and prevent voltage spikes, allowing the rectifier diode to enter a reverse bias state quickly, thus eliminating radio noise and reducing response delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a conventional DC voltage booster apparatus is used, then DC voltage boosting function is achieved, but voltage spikes occur causing radio noise and rectifier diode response delays
Solution Approach 1:
A capacitor is introduced as an intermediary component connected in parallel with the rectifier diode. This capacitor absorbs the voltage spike energy when it occurs, preventing the spike from affecting the rectifier diode's response timing and eliminating radio noise interference.
Solution Approach 2:
The capacitor is positioned beforehand in parallel with the rectifier diode to cushion against voltage spikes before they can cause harmful effects. The capacitor absorbs the spike energy in advance, protecting the rectifier diode response precision and preventing radio noise generation.
2Reliability
If a capacitor is added in parallel with the rectifier diode, then radio noise is suppressed and response delays are prevented, but device complexity increases
Solution Approach 1:
The added capacitor serves multiple functions: it suppresses voltage spikes, eliminates radio noise, and maintains rectifier diode response precision. By making this single component multi-functional, the patent achieves improved reliability without proportionally increasing device complexity.
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 solution effectively suppresses radio noise and prevents delays in fuel injection valve operation, enhancing the precision of fuel injection control by stabilizing the voltage output.
Implementation Method 1
The second capacitor is connected in parallel with the rectifier diode
Implementation Method 2
The booster coil includes a first end and a second end. The first end of the booster coil is connected to a DC power supply source.
Data Source
AI summary
A DC voltage booster apparatus includes a booster coil, a first capacitor, a switching device, and a second capacitor. The booster coil includes a first end and a second end. The first end of the booster coil is connected to a DC power supply source. The second end of the booster coil is connected to a rectifier diode. The first capacitor is connected between the rectifier diode and a ground. The first capacitor includes a smoothing capacitor. The switching device is disposed between the second end of the booster coil and the ground. The second capacitor is connected in parallel with the rectifier diode.