Power Integrations Introduces InnoSwitch5 Offline Flyback Switcher IC
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Insights
The introduction of the InnoSwitch™5-Pro family of high-efficiency, programmable flyback switcher ICs by Power Integrations represents a significant advancement in power supply technology. The key feature of achieving over 95 percent efficiency through a novel secondary-side control scheme that enables zero-voltage switching (ZVS) without an additional high-voltage switch is noteworthy. ZVS is a technique that minimizes switching losses by ensuring that the switch transitions occur when the voltage across the switch is zero. This is particularly important in reducing energy losses and improving the power efficiency of electronic devices.
The integration of GaN (gallium nitride) technology in the form of a PowiGaN™ primary switch is another crucial aspect. GaN semiconductors are known for their high electron mobility, which allows for faster switching and lower losses compared to traditional silicon-based semiconductors. This results in power supplies that are not only more efficient but also smaller in size due to the reduced need for heat dissipation components.
Furthermore, the ability of the InnoSwitch5-Pro ICs to support the USB PD EPR (Extended Power Range) protocol is indicative of the increasing demand for higher power delivery through USB ports, especially for devices like notebooks and high-end cellphones. This underscores the industry's trend towards more compact and efficient power solutions that can handle a broader range of power requirements.
From a market perspective, the release of the InnoSwitch5-Pro family is strategically timed to capitalize on the growing market for high-density USB PD 3.1 Extended Power Range (EPR) and multi-protocol adapters. As portable consumer electronics continue to demand more power in smaller form factors, Power Integrations is positioning itself as a key supplier for the next generation of power adapters and chargers. The pricing point starting at $2.40 for 10,000-unit quantities is competitive and could incentivize large-scale adoption by manufacturers.
The reduction in component count and the elimination of thermal management materials not only benefit the design and efficiency of the end product but also have implications for the supply chain and manufacturing process. Fewer components and simpler assembly could lead to cost savings, reduced inventory complexity and potentially shorter production cycles. These factors could have a positive impact on Power Integrations' market share and profitability, as well as on the stock performance as investors look for companies with innovative solutions that address current market trends.
Analyzing the supply chain implications, the InnoSwitch5-Pro's streamlined design, which allows for a reduced power supply size and component count, could lead to more efficient inventory management and lower logistics costs. The ability to eliminate heat sinks, spreaders and potting materials not only simplifies the manufacturing process but also reduces the weight and size of the final product, which can be beneficial for shipping and handling. In an industry where speed to market is crucial, the ease of implementation of the flyback topology used by the InnoSwitch5-Pro ICs could provide Power Integrations' customers with a competitive advantage by enabling faster product development cycles.
Additionally, the focus on lossless input line voltage sensing for adaptive DCM/CCM and ZVS control can help manufacturers adapt their designs to varying power grid standards globally without significant alterations, potentially simplifying global distribution and reducing the need for multiple product versions.
Zero-voltage switching (ZVS) flyback topology and advanced SR FET control enable 95 percent efficiency, reduce power supply size and component count
Power Integrations Introduces InnoSwitch5-Pro Offline Flyback Switcher IC (Photo: Business Wire)
Adnaan Lokhandwala, senior product marketing manager at Power Integrations, said: "The combination of ZVS and GaN is power supply magic. Switching losses vanish, and we can leverage the low conduction losses of GaN to implement super dense adapter layouts with far fewer components than asymmetric half-bridge (AHB) circuits or active clamp alternatives. For example, we have demonstrated 140 W / 28 V USB PD adapters in 4.2 cubic inches using only 106 components. The flyback topology used by InnoSwitch5-Pro ICs is much easier to implement than AHB and can also operate from universal mains with or without a PFC stage.”
InnoSwitch5-Pro flyback switcher ICs feature lossless input line voltage sensing on the secondary side for adaptive DCM/CCM and ZVS control to maximize efficiency and simplify design across line and load. The ICs also feature a post-production tolerance offset to facilitate accurate output constant-current (CC) control of better than two percent to support the UFCS protocol. Excellent efficiency – better than 95 percent – allows designers to eliminate heat sinks, spreaders and potting materials for thermal management, further reducing size, weight, component cost and manufacturing complexity.
Key markets for the InnoSwitch5-Pro family of flyback switcher ICs include high-density USB PD 3.1 Extended Power Range (EPR), UFCS and multi-protocol adapters, notebook adapters and after-market single- and multi-port chargers and adapters.
Availability & Resources
Pricing for InnoSwitch5-Pro devices starts at
About Power Integrations
Power Integrations, Inc. is a leading innovator in semiconductor technologies for high-voltage power conversion. The company’s products are key building blocks in the clean-power ecosystem, enabling the generation of renewable energy as well as the efficient transmission and consumption of power in applications ranging from milliwatts to megawatts. For more information, please visit www.power.com.
Power Integrations, the Power Integrations logo, InnoSwitch and PowiGaN are trademarks, service marks or registered trademarks of Power Integrations, Inc. All other trademarks are the property of their respective owner.
View source version on businesswire.com: https://www.businesswire.com/news/home/20240130086519/en/
Media Contact
Linda Williams
Power Integrations
(408)-414-9837
linda.williams@power.com
Press Agency Contact
Nick Foot
BWW Communications
+44-1491-636 393
nick.foot@bwwcomms.com
Source: Power Integrations, Inc.
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