High-Frequency Pulse Power Supply With Phase-Synchronized Output
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Solution Overview
Problem
Conventional high-frequency power supply devices experience uneven phases in output waveforms due to independent operation of synchronous and clock pulse generators, leading to jitter and instability in high-frequency pulses, which complicates control and cannot be effectively addressed by existing feedback control methods.
Innovation Solution
A high-frequency power supply device with a synchronous pulse generation mechanism, output level setting mechanism, and oscillation mechanism that synchronizes phases by generating a period reference signal and level setting signal based on output timing and level information, ensuring consistent phase alignment of high-frequency pulses even when synchronous and clock pulses are generated separately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If synchronous pulse generator and clock pulse generator operate independently, then device complexity is reduced and ease of operation is improved, but phase uniformity of output waveforms deteriorates causing jitter
Solution Approach 1:
The patent implements a feedback mechanism where the system detects phase deviations between synchronous and clock pulse generators and automatically adjusts timing to maintain phase uniformity. The control system monitors output waveform phases and modifies pulse generation timing in response to detected variations, resolving the contradiction by allowing independent operation while maintaining stability through active correction.
Solution Approach 2:
The patent introduces a phase synchronization circuit as an intermediary between the independent synchronous pulse generator and clock pulse generator. This mediator component receives pulses from both generators, compares their phases, and generates correction signals to align them, enabling both generators to operate independently while maintaining phase coherence in the final output.
2Reliability
If feedback control with matching network is added to stabilize output, then stability of output voltage is improved, but device complexity increases
Solution Approach 1:
The patent combines the feedback control function with the existing pulse generation and amplification circuitry by integrating control logic into the oscillation amplifier and level setting mechanism. Rather than adding a separate matching network, the system uses software-controlled timing adjustment and signal level modulation to achieve stabilization, reducing hardware complexity while maintaining reliability.
3Adaptability or versatility
If switch-type high-frequency power supply is used to enable amplitude modulation, then adaptability of power supply is improved, but phase stability deteriorates causing jitter between pulses
Solution Approach 1:
The patent applies preliminary action by pre-synchronizing the clock pulse generator with the synchronous pulse generator before amplitude modulation begins. The system establishes phase relationships in advance and maintains them throughout operation, ensuring that when amplitude changes occur, phase stability is preserved. This preparatory synchronization prevents jitter while enabling adaptability.
Data Source
AI summary
A high-frequency power supply device, which outputs high-frequency pulses to a target device on the basis of a synchronous pulse and a clock pulse, and the output control method therefor are such that a period reference signal is generated from output timing information pertaining to the synchronous pulse, an output level signal is generated from output level information, an output stop time is timed on the basis of the period reference signal and an output stop signal is generated, and, when the period reference signal, the output level signal, and the clock pulse are received and a high-frequency pulse is formed on the basis of these signals, transmission of the output level signal is stopped while the output stop signal is being received.