Transformer Pulse Circuit for Fast Rise Time and Ringing Damping
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Solution Overview
Problem
Existing solutions for generating high-amplitude voltage pulses with fast rise times are inefficient and fail to control resonant activity, resulting in prolonged ringing.
Innovation Solution
A circuit configuration that includes a transformer, switches, and a capacitor, controlled by a controller to efficiently generate high-amplitude voltage pulses with fast rise times, recover resonant energy, and dampen ringing, using a resistor to prevent subsequent ringing effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If existing solutions are used to generate high-amplitude voltage pulses with fast rise times, then the required voltage pulse performance is achieved, but energy efficiency is poor and prolonged ringing occurs
Solution Approach 1:
The patent recovers resonant energy from the circuit tank that would otherwise be lost. The controller monitors the resonant activity and uses switches to redirect and recover this energy back to the power source, transforming waste energy into useful energy that can be reused for subsequent pulses.
Solution Approach 2:
The controller continuously monitors the resonant activity in the circuit and adjusts the switch timing accordingly. This feedback mechanism allows the system to optimize energy recovery by detecting when resonant energy is available and when to terminate pulses to minimize energy loss.
2Power
If existing solutions generate high-amplitude voltage pulses, then the voltage pulse requirements are met, but resonant activity is not controlled resulting in prolonged ringing
Solution Approach 1:
The controller monitors resonant activity in real-time and uses this feedback to determine when to terminate voltage pulses. By detecting the resonant state, the controller can end pulses at optimal moments, preventing prolonged ringing while maintaining high voltage amplitude.
Solution Approach 2:
The system uses periodic switching actions controlled by the resonant frequency to manage energy in the circuit. The controller applies periodic control signals to the switches that are synchronized with the resonant oscillations, allowing constructive use of resonant energy while preventing excessive ringing duration.
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 circuit efficiently provides high-amplitude voltage pulses with fast rise times and minimal ringing, suitable for battery-powered systems like Lidar and autonomous vehicles, improving energy efficiency and reducing residual energy impacts.
Implementation Method 1
a transformer having a primary side and a secondary side, the primary side coupled to the first and second switches
Data Source
AI summary
In some examples, a circuit comprises a first switch adapted to be coupled to a direct current (DC) power source, a second switch coupled to the first switch and adapted to be coupled to the DC power source, and a resistor coupled to the first and second switches. The circuit comprises a transformer having a primary side and a secondary side, the primary side coupled to the first and second switches, the secondary side adapted to be coupled to a load. The circuit comprises a third switch coupled between the resistor and the primary side of the transformer, and a capacitor coupled to the second switch.