{"id":2024,"date":"2025-04-23T10:00:56","date_gmt":"2025-04-23T02:00:56","guid":{"rendered":"https:\/\/www.wnumw.com\/?p=2024"},"modified":"2025-09-17T18:07:16","modified_gmt":"2025-09-17T10:07:16","slug":"%e6%96%b9%e6%a1%88%e4%bb%8b%e7%bb%8d-%e4%b8%9c%e7%a7%91140w%e9%ab%98%e6%80%a7%e8%83%bd%e6%9e%81%e7%ae%80ahb%e6%96%b9%e6%a1%88%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.wnumw.com\/en\/2024.html","title":{"rendered":"Solutions | East Tech 140W High Performance Minimalist AHB Solution Details"},"content":{"rendered":"
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Click on DK to follow us<\/strong><\/p>\n<\/section>\n<\/section>\n

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\u00a0 Asymmetric half-bridge AC-DC power management chip from Teco as aThe industry's only fully encapsulated single-chip AHB solution<\/strong><\/span>, with far fewer peripherals than competing solutions, low debugging difficulty, and overall costs far lower than competing solutions.<\/p>\n

\u00a0 In this article, we will present a paper based on theA 140W PD solution centered on the Dongke AHB chip<\/span><\/strong>It features a minimalist periphery, high power density, and diverse output configurations, making it suitable for a wide range of application scenarios, such as laptop and tablet adapters, two-wheeled electric vehicle chargers, LED power supplies, and more.<\/p>\n<\/section>\n<\/section>\n

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Dongke 140W AHB PD Program Sample Version<\/p>\n<\/section>\n<\/section>\n

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Program overview<\/strong><\/span><\/p>\n<\/section>\n<\/section>\n

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Eastco Semiconductor's 140W AHB PD solution utilizes thedk8715bd+dk5v100r05vm<\/span><\/strong>Sleeve material, using Dongke asymmetric half-bridge AC-DC power switching chip. The solution supports a variety of output voltage and current configurations to meet the needs of different devices, and has a comprehensive protection mechanism to ensure safe use.<\/p>\n<\/section>\n

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Program features<\/strong><\/span><\/p>\n<\/section>\n<\/section>\n

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\u25aa High efficiency -End-of-board efficiency up to 95.4%<\/span><\/strong><\/p>\n

\u25aa High power density: Bare metal power density of 1.82W\/cm\u00b3.<\/p>\n

\u25aa PCBA size: 66*51*24mm<\/p>\n

\u25aa Upper tube adaptive shutdown, lower tube adaptive deadband, no peripheral adjustment required;<\/p>\n

\u25aa Full load segment ZVS;<\/p>\n

\u25aa Adaptive four load segment modes, effectively improving the efficiency of each load segment;<\/p>\n

\u25aa Adaptive dead time adjustment algorithm;<\/p>\n

\u25aa Built-in high-voltage starting and X-capacitor discharging circuits;<\/p>\n

\u25aa CS negative pressure sampling for enhanced drive stability;<\/p>\n

\u25aa Built-in full-range dither circuit to improve EMI performance;<\/p>\n

\u25aa On the marketThe simplest asymmetric half-bridge solution.<\/span><\/strong><\/p>\n

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Versatile Output Configurations.<\/strong><\/p>\n<\/section>\n

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\u00a0 \u00a0 \u00a0The program supports5v3a,9v3a,12v3a,15v3a,20v5a, 28v5a<\/span><\/strong>The output configuration is able to meet the needs of most electronic devices. Its high power density design results in a bare metal power density of 1.82W\/cm\u00b3, further enhancing the product's compactness and efficiency.<\/p>\n<\/section>\n

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Major Chip:<\/strong><\/p>\n

AC-DC: DK8715BD<\/p>\n

Synchronous rectifier: DK5V100R05VM<\/p>\n<\/section>\n

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DK8715BD Product Description<\/strong><\/p>\n<\/section>\n<\/section>\n

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DK5V100R05VM Product Description<\/strong><\/p>\n<\/section>\n<\/section>\n

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application scenario<\/strong><\/p>\n<\/section>\n<\/section>\n

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East Tech Semiconductor's 140W AHB solution is suitable for a variety of scenarios, including but not limited to:<\/p>\n

\u25aa Laptop and tablet adapters;<\/p>\n

\u25aa TV power supply, LED power supply, communication power supply;<\/p>\n

\u25aa Chargers for two-wheeled electric vehicles, etc.<\/p>\n<\/section>\n

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Partial test data<\/strong><\/p>\n<\/section>\n<\/section>\n

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Average efficiency:<\/strong><\/p>\n<\/section>\n

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Output voltage ripple:<\/strong><\/p>\n<\/section>\n

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\u25aa Output 28V\/5A<\/p>\n<\/section>\n

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X capacitor discharge waveform:<\/strong><\/p>\n<\/section>\n

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AHB operating waveform:<\/strong><\/p>\n<\/section>\n

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MOS tube stress and SR rectifier withstand voltage<\/strong><\/p>\n<\/section>\n

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\u25aa Test conditions: input 264Vac, output 28V5A, switching tube VDS voltage and SR rectifier voltage<\/p>\n<\/section>\n

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Primary Power Tube and SR Rectifier Voltages During Power-Up Transients<\/strong><\/p>\n<\/section>\n

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Test conditions: input 264Vac, output 20V2.25A, switching tube VDS voltage and SR rectifier voltage.<\/p>\n<\/section>\n

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Test conditions: Input 264Vac, Output 20V0A , Switching Tube VDS Voltage and SR Rectifier Voltage<\/p>\n<\/section>\n

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EMC Conductivity Testing<\/strong><\/p>\n<\/section>\n

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EMC Radiation Testing<\/strong><\/p>\n<\/section>\n

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\u00a0 \u00a0 If you are interested in the above AHB 140W PD program, please feel free to contact our sales team and we willProvide a full set of design and test data<\/span><\/strong>This makes it easy for you to quickly develop products and bring them to market.<\/p>\n

\u00a0 \u00a0 Thank you for your interest in TECO Semiconductor and we look forward to working with you in the future!<\/p>\n<\/section>\n

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Past Review<\/strong><\/p>\n<\/section>\n

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Solutions | Dongke 45W PD Fast Charging Minimalist Solution<\/a><\/p>\n

Dongke Launches Various Newly Upgraded AHB Controllers - DK87XXBD Series<\/a><\/p>\n

Product Selection | SEMICONDUCTOR 2025 Product Selection Book is newly launched, welcome to check the collection!<\/a><\/p>\n<\/section>\n

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WeChat\uff5cTokyo Semiconductor<\/span><\/p>\n

Official website: www.wnumw.com<\/span><\/p>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n

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<\/p>","protected":false},"excerpt":{"rendered":"

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