Pulse Charging System With Regulator And Resonant Cycle
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Solution Overview
Problem
Existing pulse charging systems require excessive energy dissipation to maintain voltage regulation, leading to high peak power demands and increased costs due to the use of DC power supplies and resistors, which is inefficient and wasteful.
Innovation Solution
A system comprising a bulk capacitor, inductor, freewheeling diode, pulse capacitor, and switches that allow precise charging and discharging without loss, using a regulator to control the charge switch based on energy measurements to ensure the pulse capacitor is charged to the desired level, reducing energy wastage and peak power requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a DC power supply is used to charge a bulk capacitor and the bulk capacitor discharges during a burst, then the pulsed capacitor bank can be charged, but the bulk capacitor is charged to different voltages requiring excessive energy dissipation to maintain regulation
Solution Approach 1:
The system uses a current measurement device to measure the current between the charge switch and the inductor, and a voltage measurement device to measure voltage across the pulse capacitor. A regulator receives these measurements and operates the charge switch according to a resonant cycle when energy in the inductor plus energy in the pulse capacitor equals a total desired energy in the pulse capacitor. This feedback mechanism maintains precise voltage regulation without excessive energy dissipation.
Solution Approach 2:
The invention changes the operating parameters by using resonant cycling of the charge switch based on real-time energy measurements. Instead of maintaining constant bulk capacitor voltage through resistive dissipation, the system allows the bulk capacitor voltage to vary while using measured current and voltage to control the charging process, achieving regulation through parameter optimization rather than parameter maintenance.
2Reliability
If a charging supply is used to recharge the bulk capacitor in between load pulses, then the capacitor can be recharged, but this results in a large peak power requirement from the line
Solution Approach 1:
The system implements periodic action by operating the charge switch according to a resonant cycle rather than continuously recharging the bulk capacitor. The charge switch is activated only when needed based on energy measurements, creating periodic charging action that reduces peak power requirements from the line while still maintaining capacitor recharging capability between load pulses.
3Reliability
If prior art approaches control or modify the quality factor of the circuit by adding loss, then voltage regulation can be maintained, but this results in unnecessary waste of energy
Solution Approach 1:
The invention converts the previously harmful energy loss into a beneficial measurement opportunity. By measuring the current and voltage to determine the energy in the inductor and pulse capacitor, the system uses what would have been wasted energy information to control the charging process. The regulator operates the charge switch based on these measurements to achieve regulation without adding loss, effectively converting the concept of energy dissipation into energy measurement and utilization.
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 high burst rate, low average rate pulse charging with reduced energy loss and lower peak power demands, allowing for smaller, less costly components and more efficient energy use by charging the capacitor bank to precise levels without unnecessary energy dissipation.
Implementation Method 1
an inductor can be connected to the bulk capacitor with a charge switch
Implementation Method 2
A freewheeling diode can connect a point between the charge switch and the inductor
Implementation Method 3
A pulse capacitor can be connected to the inductor with a second diode
Data Source
AI summary
A system, method, and apparatus for pulsed charging applications comprises a bulk capacitor operably connected to a power source, an inductor connected to the bulk capacitor with a charge switch, a pulse capacitor connected to the inductor, a freewheeling diode connecting a point between the charge switch and the inductor to a point after the pulse capacitor, a second diode connecting the inductor to the pulse capacitor, and a pulse switch connecting the pulse capacitor to a load.