Company Profile
A business service organization specializing in digital and intelligent operations. Founded in 1999, we now have nearly 80 branches across the country and a dedicated team of over 8,000 professionals committed to helping businesses achieve their digital transformation goals. Deeply attuned to the realities of China’s economic growth, we understand the unique needs and challenges faced by each enterprise. That’s why we offer comprehensive digital solutions tailored to businesses—ranging from software development and data analytics to cutting-edge marketing strategies.
China is a country with over 100 million economic entities, and every day, countless entrepreneurs set out on their journeys armed with dreams. We know that what these entrepreneurs truly seek isn’t just an idea—they need comprehensive support more than anything else. In this context, Zhongqi Dongli addresses real-world business challenges, helping companies unlock substantial commercial value through digital transformation.
Our services span across all industries—whether you're a startup, an SME, or a large enterprise, we’re here to deliver the highest-quality support tailored specifically to your needs. With our team boasting extensive industry expertise and specialized skills, we can craft the most suitable solutions to meet your unique requirements.
As a leading force in the field of digital and intelligent business management, China Enterprise Dynamics has always upheld the customer-first philosophy, delivering the best possible service to every enterprise. We strive for excellence, continuously innovate, and aim to unlock greater business opportunities and value for our clients. At China Enterprise Dynamics, we make digital business management simpler—because your success is our priority!
Professional transformer, inductor manufacturer
Contact us
Address: No. 312 Guangshan Road, Jiewo Village, Longxi Town, Boluo County, Huizhou City, Guangdong Province (Opposite the Guanghui Gas Station)
News and Information
Power-frequency transformers, also known as low-frequency transformers, are distinguished from high-frequency transformers used in switch-mode power supplies. Historically, power-frequency transformers were widely employed in conventional power supplies, which relied on linear regulation to maintain stability—hence the term "linear power supplies." The term "power frequency" typically refers to the frequency of mains electricity, which in China is 50 Hz, though other countries use 60 Hz. A transformer capable of altering the voltage of AC power while maintaining this specific frequency is precisely what we call a power-frequency transformer.
The Role of High-Frequency Transformers _ Where Are High-Frequency Transformers Used?
Currently, switch-mode power supplies typically use a half-bridge power conversion circuit, which includes components like a high-frequency transformer and transistors. When the circuit operates, the transistors alternate between conducting states, generating high-frequency pulses at a rate of 100 kHz. These pulses are then stepped down via the high-frequency transformer, ultimately producing a lower-voltage AC output. The exact output voltage level is determined by the turns ratio of the individual windings in the high-frequency transformer. In most designs, three separate transformers are employed: the main transformer, the driver transformer, and the auxiliary transformer. Each of these transformers has its own specific design specifications and critical functions, making them all indispensable to the overall operation of the system.
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