Abstract
Adjustment for conventional pulse density modulation (PDM) control of induction heating power supply in output power with level and recovering from natural attenuation to the output power state needs to re-lock the operating frequency, this paper presents an improved frequency tracking control strategy. Output load current is applied to fast frequency tracking, thus the phase-locked loop (PLL) have enough time to lock, and when the load current down to a very small value, that is, into the natural attenuation state, the operation of sample and hold (S/H) circuit in the modified phase-locked loop (MPLL) ensure the power inverter operates in the vicinity of the resonant frequency and the inverter circuit always works at zero current (ZCS) and zero voltage switching state (ZVS).
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
