50–300W General-Purpose Switching Power Supply
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50–300W General-Purpose Switching Power Supply
The Sounds Electric switching power supply series adopts flyback topology and synchronous rectification technology to provide efficient and stable power solutions for industrial automation, security systems, and commercial equipment. Certified to ENERGY STAR Level VI efficiency standards, it achieves ≥93% conversion efficiency at full load and <0.3W no-load power consumption, supporting high-efficiency and low standby power operation.
▌ Core Technology:
• Wide Power Range： Output power covers 50–300W, with voltage options from 5–54V, to meet diverse application needs.
• High Energy Efficiency： Conversion efficiency reaches ≥93% under full load, with <0.3W no-load power consumption, reducing overall energy consumption and operating costs.
• High-Power Resonant Design： Models above 300W adopt third-generation high-frequency LLC resonant topology, improving efficiency while optimising EMI performance.
• Comprehensive Protection System： Includes over-voltage, over-current, short-circuit, and over-temperature protection, with built-in TVS transient suppression and soft-start for hot-swapping.
• Flexible Application Compatibility： Suitable for PD fast charging, power adapters, and industrial or commercial equipment.
▌Industrial Design Advantages:
• Wide Input Voltage：Supports 85–260V AC input, compatible with 50Hz / 60Hz global power grids.
• Optimised EMI/EMC Performance： Enhanced electromagnetic compatibility ensures stable system operation.
• High Reliability Design： A compact and highly integrated structure simplifies system wiring and assembly. Certified to UL, ETL, 3C, and CE safety standards for reliable long-term operation.
• OEM / ODM Customisation： Supports customised power ratings, voltage options, connectors, and protection features, enabling efficient OEM/ODM development and mass production.
Q1: What should we provide to get a quotation and samples?
A: Please send us the Gerber files and BOM list. You are also welcome to provide any physical samples if available. Kindly include detailed project information. If testing is required, please specify the testing standards.
Q2: Can you provide samples?
A: Yes, we can. We always produce new samples for customers to verify the quality. Samples help confirm the design and ensure everything is ready for mass production.
Q3: Can you offer a better price?
A: Yes. We are a professional manufacturer with over 30 years of experience. With a strong supply chain and production capability, we can offer competitive pricing, often better than trading companies.
Q4: What is the estimated lead time after placing an order?
A: For samples, the lead time is usually 10–15 days. For bulk production, it is typically 15–20 days. The final timeline depends on the product design and requirements.
Q5: What shipping methods do you use?
A: Samples are usually shipped via DHL, UPS, or FedEx. For bulk orders, we offer both air and sea freight. If you have a preferred shipping method, please let us know.
Q6: Can I visit your factory?
A: Yes, you are very welcome to visit our factory. During your visit, we will show you our production facilities and manufacturing process. Please feel free to contact us to schedule an appointment.
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