Pulse Switch Isolation Circuit for Synchronous High-Voltage Pulses
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Solution Overview
Problem
Traditional pulse generation circuits face challenges in achieving synchronous control and circuit isolation between multiple switch devices, leading to difficulties in ensuring synchronization during high-speed switching.
Innovation Solution
The proposed pulse generation circuit incorporates a control circuit, high-voltage and working power supply circuits, pulse switch circuit, photoelectric isolation drive circuits, and magnetic isolation power supply circuits. This configuration allows for independent control of power switches and achieves electrical isolation between the high-voltage power supply and other circuits, enhancing synchronization and reducing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple switch devices are connected in series and parallel to generate high-voltage pulses, then the pulse generation versatility and modularity are improved, but the synchronous control and circuit isolation between switch devices become difficult to achieve
Solution Approach 1:
The patent introduces photoelectric isolation components as intermediary elements between the control circuit and multiple power switches. These photoelectric isolators convert control signals into light signals and then back to electrical signals, providing galvanic isolation while maintaining signal transmission. This mediator approach enables independent control of each power switch while ensuring synchronous operation, resolving the contradiction between versatility and control reliability.
2Adaptability or versatility
If multiple switch devices are connected in series and parallel to generate high-voltage pulses, then the pulse generation versatility and modularity are improved, but the circuit isolation between switch devices becomes difficult to achieve
Solution Approach 1:
The patent employs photoelectric isolation components as intermediary elements between the control circuit and multiple power switches. These photoelectric isolators convert control signals into light signals and then back to electrical signals, providing galvanic isolation while maintaining signal transmission. This mediator approach enables independent control of each power switch while ensuring synchronous operation, resolving the contradiction between versatility and control reliability.
3Device complexity
If traditional pulse generation circuits are used, then the circuit structure is simple, but the synchronization rate during high-speed switching is difficult to ensure
Solution Approach 1:
The patent replaces traditional electrical signal transmission with photoelectric conversion. Control signals are converted to light signals by LED elements in the photoelectric isolators, transmitted through optical paths, and then converted back to electrical signals to drive power switches. This substitution eliminates electromagnetic interference and ground loop issues, achieving high-speed synchronous switching while maintaining reasonable circuit 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 achieves isolation among the power switch, high-voltage power supply, working power supply, and control circuit, enabling independent control of each power switch and improving synchronization rates while maintaining electrical isolation.
Implementation Method 1
the photoelectric isolation drive circuit is configured to control the turning on or off of the corresponding power switch according to a received switch control signal output by the control circuit
Implementation Method 2
the magnetic isolation power supply circuit is configured to supply power to the corresponding photoelectric isolation drive circuit based on a working voltage provided by the working power supply circuit
Data Source
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AI summary
The present application relates to a pulse generation circuit, a pulse generator, and a medical device. The pulse generation circuit (10) includes: a control circuit (100), a high-voltage power supply circuit (210), a working power supply circuit (220), a pulse switch circuit (500), a plurality of photoelectric isolation drive circuits (300) and a plurality of magnetic isolation power supply circuits (400). According to the present application, isolation between various power switches (510) can be realized by means of the above photoelectric isolation drive circuits and magnetic isolation power supply circuits; moreover, the photoelectric isolation drive circuits have higher response speeds, such that the synchronization rate of the respective power switches can be improved by controlling the power switches according to a switch control signal by means of the photoelectric isolation drive circuits.