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Intermediate frequency power supply
Intermediate frequency power supply
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Introduction to Medium-Frequency Power Supplies
I. Definition and Core Functions
A medium-frequency power supply is a power electronic device that converts power frequency alternating current (typically 50Hz or 60Hz) into medium-frequency alternating current (generally in the frequency range of 100Hz to 10kHz). Its core function is to provide electrical energy of a specific frequency to industrial production, medical equipment, scientific research, and other fields through rectification, filtering, and inversion, meeting the special needs of different scenarios for power frequency.
II. Working Principle and Composition Structure
Basic Principle
Rectification stage: Converts power frequency alternating current into direct current using a diode or thyristor rectifier.
Filtering stage: Uses capacitors or inductors to filter the direct current, reducing ripple and making it smoother.
Inversion stage: Inverts direct current into alternating current of the required frequency using power devices (such as IGBTs, MOSFETs, etc.), with the frequency adjusted by the control circuit.
Main Components
Rectifier: Commonly uses a three-phase bridge rectifier circuit to convert alternating current to direct current.
Inverter: The core component, achieving frequency conversion through the on-off control of switching devices.
Control circuit: Uses digital signal processing (DSP) or PLC technology to precisely adjust the output frequency, voltage, and power.
Filtering circuit: Smooths the DC voltage and reduces harmonic interference.
III. Technological Advantages and Characteristics
High efficiency: Power conversion efficiency can reach over 90%, saving 10%-30% energy compared to traditional power frequency equipment.
Small size: Solid-state devices (such as IGBTs) replace traditional electron tubes, reducing equipment size and facilitating installation and maintenance.
Flexible control: Digital control technology supports real-time adjustment of frequency and power to adapt to different operating conditions.
High reliability: Features overcurrent, overvoltage, and overheat protection functions to reduce the risk of failure.
Xi'an Aobang Technology Co., Ltd. is one of the earliest manufacturers in China to mass-produce medium-frequency induction furnaces. Main products include medium-frequency power supplies, IGBT power supplies, melting furnaces, heating furnaces, and a full range of induction heating equipment. Long-term Focus on Induction heating equipment Research and development and manufacturing Based in Xi'an, Aobang Technology is committed to "technology-driven industrial heating innovation." Leveraging core technologies accumulated from early mass production, we provide customers with full-cycle services ranging from equipment selection and installation and commissioning to process optimization.
Welcoming guests to the ancient city, sharing the feelings of Aobang We look forward to collaborating with more industry partners to expand the innovative boundaries of induction heating technology. 13891865812 Mr. Luo
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Xi'an Aobang Technology Co.,Ltd
Mobile: 008613891865812 (Mr. Luo)
Mobile: 008613772030598 (Manager Wang)
Phone: 008602986196449
Email: aobangkeji@aobangkeji.com
Address: Boai Industrial Park, No. 268 Caotan Sixth Road, Xi'an Economic and Technological Development Zone
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