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Power Integrations introduced a new member of its InnoMux™-2 family of single-stage, independently regulated multi-output offline power supply ICs. The new device features the industry’s first 1700 V gallium nitride switch, fabricated using the company’s proprietary PowiGaN™ technology.
The 1700 V rating further advances the state-of-the-art for GaN power devices, previously set by Power Integrations’ own 900 V and 1250 V devices, both launched in 2023. The 1700 V InnoMux-2 IC easily supports 1000 VDC nominal input voltage in a flyback configuration and achieves over 90 percent efficiency in applications requiring one, two or three supply voltages.
Each output is regulated within one percent accuracy, eliminating post regulators and further improving system efficiency by approximately ten percent. The new device replaces expensive silicon carbide (SiC) transistors in power supply applications such as automotive chargers, solar inverters, three-phase meters and a wide variety of industrial power systems.
Radu Barsan, vice president of technology at Power Integrations, said, “Our rapid pace of GaN development has delivered three world-first voltage ratings in a span of less than two years: 900 V, 1250 V and now 1700 V. Our new InnoMux-2 ICs combine 1700 V GaN and three other recent innovations: independent, accurate, multi-output regulation; FluxLink™, our secondary-side regulation (SSR) digital isolation communications technology; and zero voltage switching (ZVS) without an active-clamp, which all but eliminates switching losses.”
Original – Power Integrations
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Power Integrations enhanced its hardware-software bundle for brushless DC motors (BLDC) with BridgeSwitch™-2, a new high-voltage integrated half-bridge (IHB) motor-driver IC family targeting applications up to 1 HP (746 W). The new ICs, which feature high- and low-side drivers and advanced FREDFETs with integrated lossless current sensing, deliver inverter efficiency of up to 99 percent.
The IHB architecture eliminates hot spots, which increases design flexibility and reliability, slashes component count and saves PCB area. BridgeSwitch-2 is supported by Power Integrations’ MotorXpert™ software suite which includes single-phase trapezoidal control and three-phase sensor-less Field Oriented Control (FOC) modules, speeding inverter development.
BridgeSwitch-2 ICs handle operational exceptions in hardware, which permits the use of IEC 60730 Class A safety software, reducing certification time by months. Quiescent BLDC inverters can be ordered into sleep-mode, reducing driver power consumption to less than 10 mW; this leaves more power available under regulated standby power limits to be allocated for loads such as network access and monitoring.
Cristian Ionescu-Catrina, product marketing manager at Power Integrations, said: “The low standby consumption of BridgeSwitch-2-based motor drives enables designers to meet new and emerging EU ERP regulations. BridgeSwitch-2 ICs are also far more efficient than IGBT based IPMs across the entire load range.”
He continued: “From startup to performance optimization, the GUI-based tool, terminal emulator and MISRA C-compliant code library of MotorXpert greatly simplifies the design process, allowing the motor architecture to be optimized in real-time without repeated firmware updates. BridgeSwitch-2 is microprocessor agnostic, easing its adoption into existing systems – this is important as engineers update designs to meet more stringent standby regulations.”
BridgeSwitch-2 ICs address a power range of 30 to 746 W (1 HP), encompassing a broad range of applications including heat exchanger fans, refrigerator compressors, fluid and circulation pumps, gas boiler combustion fans, washing machine drums and kitchen blenders and mixers.
The IHB architecture reduces component count by 50 percent and PCB space by 30 percent over discrete designs by eliminating shunt resistors and associated signal conditioning circuits. Shunt losses are also eliminated, improving efficiency. Precise motor control is achieved with the built-in real-time reporting of phase current (IPH) information.
Accurate turn-on/off gate drive and a soft-body diode result in a typical EMI profile 10 dB lower than existing drivers, so a smaller EMI filter can be selected. BridgeSwitch-2 ICs feature built-in DC overvoltage protection and current limits that protect the inverter and the system without relying on system software.
The choice of error-flag or comprehensive fault bus reporting supports a range of system requirements. Emerging use-cases like failure prediction are now possible with the high accuracy of the built-in IPH information and comprehensive reporting via the fault bus. BridgeSwitch-2 motor drives use built-in, hardware-based low- and high-side over-current protection to meet IEC 60335-1 Class A requirements. BridgeSwitch-2 also works without an auxiliary power supply, further reducing PCB area and component count.
Original – Power Integrations
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Power Integrations announced the launch of the SCALE-iFlex™ XLT family of dual-channel plug-and-play gate drivers for operation of single LV100 (Mitsubishi), XHP™ 2 (Infineon), HPnC (Fuji Electric) and equivalent semiconductor modules up to 2300 V blocking voltage for wind, energy storage and solar renewable energy installations.
This single-board driver enables active thermal management of inverter modules for improved system utilization and reduces the bill-of-material count for increased reliability.
Thorsten Schmidt, product marketing manager at Power Integrations commented: “It’s a real challenge to build a single-board gate driver for these ‘new dual’ style IGBT modules. Our compact new SCALE-iFlex XLT gate drivers fit inside the outline of the module, allowing the drivers to be mounted on the module, which gives converter system designers a high degree of mechanical design freedom.”
SCALE-iFlex XLT dual-channel gate drivers feature Negative Temperature Coefficient (NTC) data reporting – an isolated temperature measurement of the power module – which allows accurate thermal management of converter systems. This enables system designers to optimize thermal design and obtain a 25 to 30 percent converter power increase from the same hardware.
The isolated NTC readout also reduces hardware complexity, eliminating multiple cables, connectors and additional isolation barrier crossing circuits. The new gate drivers employ Power Integrations’ SCALE-2 chip set which minimizes component count, enhancing reliability. The gate driver board also protects the power switches in the event of a short-circuit.
Original – Power Integrations
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Power Integrations announced an agreement to acquire the assets of Odyssey Semiconductor Technologies, a developer of vertical gallium-nitride (GaN) transistor technology. The transaction is expected to close in July 2024, after which all key Odyssey employees are expected to join Power Integrations’ technology organization.
The acquisition supports the company’s ongoing development roadmap for its proprietary PowiGaN™ technology, which is featured in many of the company’s product families including InnoSwitch™ ICs, HiperPFS™-5 power-factor-correction ICs and the recently launched InnoMux™-2 family of single-stage, multiple-output ICs. The company introduced 900- and 1250-volt versions of PowiGaN technology and products in 2023.
Commented Dr. Radu Barsan, Power Integrations’ vice president of technology: “Power Integrations has been at the forefront of GaN development and commercialization since we began shipping products with PowiGaN technology in 2018. We are executing on an ambitious roadmap that includes driving toward cost parity with silicon MOSFETs and expanding the voltage and power capabilities of PowiGaN.
Our goal is to commercialize a cost-effective high-current and high-voltage GaN technology to support higher-power applications currently served by silicon carbide (SiC), at a much lower cost and higher performance enabled by the fundamental material advantages of GaN over SiC. The experience of the Odyssey team in high-current vertical GaN will augment and accelerate these efforts, and we are delighted to add them to our team.”
Added Dr. Richard Brown, Odyssey co-founder and CEO: “The Odyssey team and I are excited to join Power Integrations in accelerating their GaN technology roadmap. As the first company to commercialize high-voltage GaN, Power Integrations continues to lead the industry in driving the technology forward in terms of cost, voltage and current, as well as the design of system-level products that take full advantage of the capabilities of GaN.”
Original – Power Integrations
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Power Integrations announced the InnoMux™-2 family of single-stage, independently regulated multi-output offline power-supply ICs. InnoMux-2 ICs consolidate AC-DC and downstream DC-DC conversion stages into a single chip, providing up to three independently regulated outputs for use in white goods, industrial systems, displays and other applications requiring multiple voltages.
Elimination of separate DC-DC stages slashes component count, reduces PCB footprint and increases efficiency by as much as 10 percentage points compared to traditional two-stage architectures. Efficiency is aided by the ICs’ 750 V PowiGaN™ gallium-nitride transistors, zero-voltage switching (without an active clamp) and synchronous rectification.
Roland Saint-Pierre, vice president of product development at Power Integrations said: “Most modern electronic systems rely on multiple internal voltages to operate various functions such as computing, communication and actuation function – typically heat, light, sound or motion of some kind. But losses in each conversion stage are compounded, degrading system performance and generating heat.
The InnoMux-2 IC overcomes this challenge by providing up to three independently regulated voltage outputs or two voltage output and a constant current output from a single stage, achieving a compact and efficient power sub-system with low component count.”
InnoMux-2 ICs deliver up to 90 watts of output power with accurate regulation of better than ±3 percent across the full input line, load, temperature and differential current step conditions. Total power system efficiency (AC to regulated low-voltage DC segment) is above 90 percent; the advanced InnoMux-2 controller also manages light-load power delivery, avoiding the need for pre-load resistors and reducing no-load consumption to less than 30 mW. This conserves power for necessary functionality in applications subject to the 300 mW allowance for standby usage under the European energy-using product (EuP) regulations.
InnoMux-2 devices leverage Power Integrations’ thermally efficient InSOP™24 and InSOP™28 packages with PCB cooling, so no heatsink is required. Device options include dual- and three-output constant voltage (CV); optionally, one output may be dedicated to constant current (CC) drive, suitable for powering LEDs in displays or for high-speed charging of an internal battery. Typical applications include TVs, monitors, appliances, networking, home and building automation, LED emergency lighting and industrial power supplies.
Original – Power Integrations
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Power Integrations announced financial results for the quarter and year ended December 31, 2023. Net revenues for the fourth quarter were $89.5 million, down 29 percent compared to the prior quarter and down 28 percent from the fourth quarter of 2022. GAAP net income for the fourth quarter was $14.3 million or $0.25 per diluted share compared to $0.34 per diluted share in the prior quarter and $0.40 per diluted share in the fourth quarter of 2022.
For the full year, net revenues were $444.5 million, compared to $651.1 million in the prior year. Full-year GAAP net income was $55.7 million or $0.97 per diluted share compared to $2.93 per diluted share in the prior year. Full-year cash flow from operations was $65.8 million.
In addition to its GAAP results, the company provided non-GAAP measures that for the fourth quarter of 2023 exclude stock-based compensation, amortization of acquisition-related intangible assets and the related tax effects. Non-GAAP net income for the fourth quarter of 2023 was $12.7 million or $0.22 per diluted share compared to $0.46 per diluted share in the prior quarter and $0.48 per diluted share in the fourth quarter of 2022. For the full year, non-GAAP net income was $74.5 million or $1.29 per diluted share compared to $3.29 per diluted share in the prior year. A reconciliation of GAAP to non-GAAP financial results is included with the tables accompanying this press release.
Commented Balu Balakrishnan, chairman and CEO of Power Integrations: “Fourth-quarter revenues declined as expected, and we project first-quarter sales to be about flat sequentially due to continued soft demand and elevated supply-chain inventories. However, channel inventory fell significantly in the fourth quarter, and we expect a further reduction in the first quarter. Based on lower inventories and seasonal patterns we expect sequential revenue growth beginning in the June quarter. We also expect gross margin to rise in the June quarter driven by the dollar/yen exchange rate, higher manufacturing utilization and end-market mix.”
During the fourth quarter Power Integrations repurchased 680 thousand shares of its common stock for $47.4 million. The company had $26.0 million remaining on its repurchase authorization as of December 31, 2023. Power Integrations paid a dividend of $0.20 per share on December 29, 2023, and will pay a dividend of $0.20 per share on March 29, 2024, to stockholders of record as of February 29, 2024.
Financial Outlook
The company issued the following forecast for the first quarter of 2024:
- Revenues are expected to be $90 million plus or minus $5 million.
- GAAP gross margin is expected to be approximately 51.5 percent; non-GAAP gross margin is expected to be approximately 52.5 percent. The difference between GAAP and non-GAAP gross margins is equally attributable to stock-based compensation and amortization of acquisition-related intangible assets.
- GAAP operating expenses are expected to be approximately $49 million; non-GAAP operating expenses are expected to be approximately $42.5 million. Non-GAAP operating expenses are expected to exclude about $6.5 million of stock-based compensation.
Original – Power Integrations
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Power Integrations announced the release of the InnoSwitch™5-Pro family of high-efficiency, programmable flyback switcher ICs. The single-chip switcher achieves over 95 percent efficiency with a novel secondary-side control scheme which achieves zero-voltage switching (ZVS) without a dedicated and costly additional high voltage switch.
The new IC, which features a 750 V or a 900 V PowiGaN™ primary switch, primary-side controller, FluxLink™ isolated feedback and secondary controller with an I2C interface, optimizes the design and manufacture of compact, highly efficient single- or multi-port USB PD adapters. Applications are notebooks, high-end cellphones and other portable consumer products, including designs that require the new USB PD EPR (Extended Power Range) protocol.
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.
Original – Power Integrations
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Power Integrations announced that it has been Certified™ by Great Place To Work® for a second consecutive year. In a recent anonymous survey, 85 percent of employees said that Power Integrations is a great place to work—28 points higher than the average U.S. company. Additionally, 91 percent reported feeling that they make a difference at the company, while 86 percent said they would strongly endorse the company to friends and family as a great place to work.
Stated Balu Balakrishnan, chairman and CEO of Power Integrations: “We are proud to be recognized once again with Great Place To Work Certification. As an innovation-driven company, our success depends on developing a talented, stable workforce and a culture that promotes creativity and risk-taking. While we will always strive to improve, it is gratifying to learn that so many of our employees are happy and proud to be part of Power Integrations.”
“Great Place To Work Certification is a highly coveted achievement that requires consistent and intentional dedication to the overall employee experience,” says Sarah Lewis-Kulin, vice president of global recognition at Great Place To Work.
She emphasizes that Certification is the sole official recognition earned by the real-time feedback of employees regarding their company culture. “By successfully earning this recognition, it is evident that Power Integrations stands out as one of the top companies to work for, providing a great workplace environment for its employees.”
Power Integrations currently has numerous job openings across North America, Europe and Asia. To learn more, interested job seekers can visit the “Careers” page of the Power Integrations website.
Original – Power Integrations
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Power Integrations announced a new family of plug-and-play gate drivers for 62 mm silicon-carbide (SiC) MOSFET and silicon IGBT modules rated up to 1700 V, with enhanced protection features to ensure safe, reliable operation.
SCALE™-2 2SP0230T2x0 dual-channel gate drivers deploy short-circuit protection in less than two microseconds, protecting the compact SiC MOSFETs against damaging over-currents. The new drivers also include advanced active clamping (AAC) to protect the switches against over-voltage during turn-off, enabling higher DC link operating voltages.
Thorsten Schmidt, product marketing manager at Power Integrations, commented: “The 2SP0230T2x0 gate drivers are flexible; the same hardware can be used to drive either SiC MOSFET or IGBT modules. This reduces both system design and sourcing challenges, and the plug-and-play approach speeds development.”
Ideal for applications such as railway auxiliary converters, offboard EV chargers and STATic synchronous COMpensator (STATCOM) voltage regulators for the power grid, 2SP0230T2x0 gate drivers are based on Power Integrations’ proven SCALE-2 technology, resulting in higher levels of integration, smaller size, more functionality and enhanced system reliability.
Power Integrations’ compact 134 x 62 mm 2SP0230T2x0 provides reinforced isolation at 1700 V, enabling use for up to 1700 V operation; this is 500 V higher than conventional drivers, which are typically limited to 1200 V.
Original – Power Integrations
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Power Integrations announced financial results for the quarter ended September 30, 2023. Net revenues for the third quarter were $125.5 million, up two percent compared to the prior quarter and down 22 percent from the third quarter of 2022. Net income for the third quarter was $19.8 million or $0.34 per diluted share compared to $0.26 per diluted share in the prior quarter and $0.80 per diluted share in the third quarter of 2022. Cash flow from operations for the third quarter was $26.7 million.
In addition to its GAAP results, the company provided non-GAAP measures that for the third quarter of 2023 exclude stock-based compensation, amortization of acquisition-related intangible assets and the related tax effects. Non-GAAP net income for the third quarter of 2023 was $26.6 million or $0.46 per diluted share compared to $0.36 per diluted share in the prior quarter and $0.84 per diluted share in the third quarter of 2022. A reconciliation of GAAP to non-GAAP financial results is included with the tables accompanying this press release.
Commented Balu Balakrishnan, chairman and CEO of Power Integrations: “Our results and forecast reflect the broad-based demand weakness and elevated supply-chain inventories cited by many of our peers this quarter. Notwithstanding the uncertain short-term outlook, our products are winning in the market, design activity remains healthy, and we are making excellent progress on growth initiatives such as EVs, efficient drivers for brushless DC motors, and our proprietary GaN technology.
“We took the next step on our GaN roadmap last month with the introduction of InnoSwitch™ ICs incorporating a 1250-volt PowiGaN™ switch. This breakthrough not only extends the efficiency benefits of GaN to a wider range of applications but also demonstrates that GaN will be a more cost-effective alternative to silicon carbide in the years ahead.”
Power Integrations paid a dividend of $0.19 per share on September 29, 2023, and will pay a dividend of $0.20 per share on December 29, 2023, to stockholders of record as of November 30, 2023. During the third quarter the company repurchased approximately 24,000 shares of its common stock for $1.8 million. The company had $73.4 million remaining on its repurchase authorization as of September 30, 2023.
Financial Outlook
The company issued the following forecast for the fourth quarter of 2023:
- Revenues are expected to be $90 million plus or minus $5 million.
- Gross margins are expected to be similar to the third-quarter levels.
- GAAP operating expenses are expected to be approximately $50 million; non-GAAP operating expenses are expected to be approximately $42.5 million. Non-GAAP expenses are expected to exclude about $7.5 million of stock-based compensation.
Original – Power Integrations
