Interleaving‐based converter system with features of external auxiliary triggering and universal line input for driving medical laser equipment

Autor: You-Sheng Shen, Li-Zhong Chen, Chih-Lung Shen
Rok vydání: 2019
Předmět:
capacitors
lighting period control
Computer science
interleaved-boost front end
Ripple
lighting control
Control unit
Energy Engineering and Power Technology
02 engineering and technology
Power factor
biomedical equipment
energy-stored capacitor bank
external auxiliary triggering
law.invention
instantaneous high power
Front and back ends
020210 optoelectronics & photonics
law
laser output control
0202 electrical engineering
electronic engineering
information engineering
power converter system
line voltage range
arc-sustaining circuit
lighting-period control unit
power factor correction
business.industry
trigger circuits
xenon lamp
020208 electrical & electronic engineering
General Engineering
Electrical engineering
lower input current ripple
universal line input
system controller
Line (electrical engineering)
Power (physics)
power convertors
medical laser equipment
Capacitor
lcsh:TA1-2040
universal line voltage
lcsh:Engineering (General). Civil engineering (General)
business
Software
lamps
Voltage
Zdroj: The Journal of Engineering (2019)
ISSN: 2051-3305
DOI: 10.1049/joe.2018.5268
Popis: A novel power converter system to drive medical laser equipment is proposed here, which has the major features of interleaving, external auxiliary triggering, and lighting period control. The converter system can deal with universal line input and provide instantaneous high power for medical laser equipment. This system mainly includes an interleaved-boost front end (IBFE), a lighting-period control unit (LPCU), an energy-stored capacitor bank (ESCB), an igniting and arc-sustaining circuit (IASC), external auxiliary triggering circuit (EATC), and a system controller (SC). With them, it is able to fulfil power factor correction (PFC), lower input current ripple, deal with universal line voltage, provide a larger current to xenon lamp, ignite xenon lamp at a lower voltage, and sustain lamp arc. The sustained arc will be beneficial to light the xenon lamp again. As a result, much more precise timing of laser output control can be accomplished. The operation of the converter system is discussed. In addition, a 2-kW prototype to deal with the line voltage range of 90 to 265 V ac is built and examined. Key waveforms and practical measurements have demonstrated the feasibility of the proposed converter system.
Databáze: OpenAIRE
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