Inductive Adder Pulse Generator for Fast ±50 kV Beam Kicker Pulses
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Solution Overview
Problem
Producing high voltage pulses with fast rise and fall times is challenging, especially in a compact form using standard electrical components.
Innovation Solution
An inductive adder power system comprising stacked switch boards with toroid-shaped transformer cores and a transformer rod, utilizing solid-state switches to generate high voltage pulses with fast rise and fall times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If standard electrical components are used to produce high voltage pulses, then the device complexity is reduced, but the rise time becomes too slow (greater than 50 ns)
Solution Approach 1:
The system divides the high voltage pulse generation into multiple discrete switch boards (e.g., 24 switch boards), each contributing a portion of the total voltage. Each switch board operates independently with its own solid state switches, allowing parallel operation that achieves fast aggregate rise time while keeping individual component complexity manageable.
Solution Approach 2:
The patent transitions from planar circuit board layouts to a three-dimensional stacked configuration of switch boards. Multiple switch boards are stacked vertically with transformer cores positioned between them, creating a compact volumetric structure that achieves fast rise times through spatial optimization without proportionally increasing footprint complexity.
2Speed
If a compact form factor is used, then the volume is reduced, but producing fast rise times becomes more difficult
Solution Approach 1:
The system employs a nested configuration where transformer cores are positioned within and between stacked switch boards. The transformer rod extends through multiple switch boards, and components are arranged concentrically and in layers, maximizing space utilization and achieving compact volume while maintaining fast rise times through optimized electromagnetic coupling.
Solution Approach 2:
The patent utilizes vertical stacking of switch boards to achieve compact horizontal footprint while maintaining adequate electrical isolation and magnetic coupling paths. The three-dimensional arrangement allows fast rise times to be achieved through optimized current paths and magnetic flux distribution without requiring large planar volume.
3Power
If multiple switch boards are stacked to increase voltage output, then the output voltage increases, but the device complexity increases
Solution Approach 1:
The system merges multiple identical or similar switch board modules into a unified stacked structure, where each module contributes equally to the total voltage output. The standardized modular design allows voltage scaling by simply adding or removing identical switch board units, achieving high output voltage while managing complexity through modularity and repetition rather than unique custom components.
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 produces high voltage pulses with output voltages up to ±50 kV, rise times less than 10 ns, and fall times less than 100 ns, suitable for applications like high energy beam kickers.
Implementation Method 1
An inductive adder power system may, for example, produce fast, high voltage pulses
Data Source
AI summary
A high voltage inductive adder is disclosed. An inductive adder may include a plurality of switch boards that each include a plurality of switch boards that include a plurality of solid state switches. These switch boards may be stacked one upon another. The inductive adder may include a transformer comprising a plurality of toroid-shaped transformer cores disposed on a corresponding one of the plurality of switch boards; and a transformer rod that extends through the plurality of switch boards and the plurality of transformer cores. The inductive adder may include an output electrically coupled with the transformer rod. And each of the plurality of circuit boards, for example, may include a tailbiter circuit electrically coupled in parallel with the output.