Supply Line Switch Leakage Diversion for High-Voltage Power Supplies
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Solution Overview
Problem
Pulsed electric field (PEF) generators face challenges in providing clean and safe power output due to high voltages and high power levels, leading to leakage currents that can cause pulse inaccuracy and potential damage to internal circuits.
Innovation Solution
A power supply component with a supply line switch and current diversion component that diverts leakage current away from the source node and supply node when the switch is open, using semiconductor switches and insulated gate bipolar transistors to control the current paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If high voltage and high power levels are used in PEF generators, then the power output capability is improved, but leakage current increases causing pulse inaccuracy and potential damage to internal circuits
Solution Approach 1:
The patent extracts the harmful leakage current from the main power supply circuit by introducing a separate current diversion path. The diversion component selectively removes leakage current from the supply line while allowing the main power output to continue operating at high voltage and power levels, thus resolving the contradiction between power capability and leakage current harm
Solution Approach 2:
The patent introduces a current diversion component as an intermediary element between the power supply and the load. This intermediary selectively manages current flow by diverting leakage current away from sensitive circuits while maintaining the power transmission path for legitimate current, thereby enabling high power operation without the harmful effects of leakage current
2Reliability
If a current diversion component is added to mitigate leakage current, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The current diversion component serves as a mediator that integrates into the existing power supply architecture with minimal disruption. By positioning the diversion component in parallel with the main power path and using controlled switching, the patent achieves improved reliability without substantially increasing overall system complexity
Solution Approach 2:
The patent implements preliminary action by proactively diverting leakage current before it can cause damage to internal circuits. The diversion component is positioned and controlled to prevent harmful current flow in advance, improving reliability while maintaining a relatively simple circuit structure through preventive rather than corrective design
Data Source
AI summary
A power supply component comprising a supply node to provide a supply voltage and a supply line to provide a source voltage. The supply line comprising a source node that has a source voltage, and the supply line includes a supply line switch coupled between the source node and the supply node, wherein the supply line switch couples the source voltage to the supply node when the supply line switch is closed. A current diversion component diverts leakage current away from one or both of the source node and the supply node when the supply line switch is open.