Posted in | News | Energy

Power Integrations Combines Programmability, High Efficiency and Small Form Factor in New Zero-Voltage-Switching Power-Supply ICs

Power Integrations, the leader in high-voltage integrated circuits (ICs) for energy-efficient power conversion, today announced the InnoSwitch™4-Pro family of digitally controllable, off-line CV/CC Zero Voltage Switching (ZVS) flyback ICs, which substantially reduce the size of power adapters. Incorporating a robust PowiGaN gallium-nitride primary switch and steady-state switching frequency of up to 140 kHz, the highly integrated devices reduce the component count and PCB area required for ultra-compact adapters for cellphone, notebook, tablet and multi-port accessories.

Power Integrations’ InnoSwitch4-Pro family of flyback switchers enable over 95% efficient, compact, USB PD and Universal Fast Charging Specification (UFCS) adapters up to 220 W (Photo: Business Wire)

“InnoSwitch4-Pro ICs interface seamlessly with Power Integrations’ ClampZero™ family of active clamp ICs to achieve ZVS in both continuous conduction mode (CCM) and discontinuous conduction mode (DCM),” stated Aditya Kulkarni, product marketing manager at Power Integrations. “ZVS, combined with our PowiGaN™ technology, virtually eliminates switching losses. Efficiency exceeds 95 percent, which enables designers to eliminate the heat sinks, spreaders and potting materials typically required for thermal management."

Further size reduction of the adapter can be achieved by the use of a MinE-CAP™ device in combination with InnoSwitch4-Pro and ClampZero ICs. Based also on PowiGaN technology, MinE-CAP ICs enable input capacitance size reduction of approximately 40 percent.

Capable of delivering up to 220 W, InnoSwitch4-Pro ICs combine a 750 V PowiGaN primary switch, controller, FluxLink™ reinforced isolation feedback link for secondary-side control, I2C interface, active clamp drive and synchronous rectification in a compact InSOP™-28 package. The high level of integration greatly simplifies the development and manufacturing of fully programmable, highly efficient power supplies. These programmable flyback ICs in combination with ClampZero and MinE-CAP companion devices enable the ultra-compact and slim form factors highly desired by both OEM accessory and aftermarket USB PD and Universal Fast Charging Specification (UFCS) adapters. UFCS is the new standard released by the China Communications Standards Association.

A unique control algorithm is employed by the InnoSwitch4-Pro ICs to enable ZVS in both DCM and CCM. When paired with the ClampZero IC, the algorithm allows for higher-frequency operation without a corresponding drop in efficiency. InnoSwitch4-Pro also supports quasi-resonant switching in DCM and CCM when used as a standalone product. DCM-only operation can be selected to reduce SR FET voltage stress. The new ICs also feature an optimized command set to reduce I2C traffic.

InnoSwitch4-Pro flyback switcher ICs provide exceptional CV/CC accuracy, independent of external components, and consume less than 30 mW no-load while offering line-sensing and comprehensive protection features. Devices are fully protected featuring auto-restart or latching fault response for output overvoltage and undervoltage protection, multiple output undervoltage fault thresholds, latching or hysteretic primary over-temperature protection, and output bus switch short-circuit protection.

Source: http://www.power.com

Citations

Please use one of the following formats to cite this article in your essay, paper or report:

  • APA

    Power Integrations, Inc. (2022, November 15). Power Integrations Combines Programmability, High Efficiency and Small Form Factor in New Zero-Voltage-Switching Power-Supply ICs. AZoCleantech. Retrieved on December 07, 2022 from https://www.azocleantech.com/news.aspx?newsID=32579.

  • MLA

    Power Integrations, Inc. "Power Integrations Combines Programmability, High Efficiency and Small Form Factor in New Zero-Voltage-Switching Power-Supply ICs". AZoCleantech. 07 December 2022. <https://www.azocleantech.com/news.aspx?newsID=32579>.

  • Chicago

    Power Integrations, Inc. "Power Integrations Combines Programmability, High Efficiency and Small Form Factor in New Zero-Voltage-Switching Power-Supply ICs". AZoCleantech. https://www.azocleantech.com/news.aspx?newsID=32579. (accessed December 07, 2022).

  • Harvard

    Power Integrations, Inc. 2022. Power Integrations Combines Programmability, High Efficiency and Small Form Factor in New Zero-Voltage-Switching Power-Supply ICs. AZoCleantech, viewed 07 December 2022, https://www.azocleantech.com/news.aspx?newsID=32579.

Tell Us What You Think

Do you have a review, update or anything you would like to add to this news story?

Leave your feedback
Your comment type
Submit