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PowerInt-HiperPFS-4系列高效电源PFC控制方案

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PowerInt-HiperPFS-4系列高效电源PFC控制方案

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PowerInt HiperPFS-4系列高效电源PFC控制方案 时间:2017-05-03 10:23:28       作者:PowerInt       来源:中电网 PowerInt公司的HiperPFS-4系列PFS7623-7629/7633-7636是集成了600V MOSFET的PFC控制器,不需要外接电流检测电阻,在整个负载范围内有最大化效率和最小化EMI,效率大于95%,230VAC时无负载功耗小于60mW,和EN61000-3-2 Class C与Class D兼容,主要用在PC,LCD TV,笔记本电脑,电器,电泵,马达,风扇,打印机和LED照明.本文介绍了HiperPFS-4系列产品亮点和主要特性,功能框图,典型应用电路框图以及采用HiperPFstm-4 PFS7627H的275W PFC前端参考设计DER-547主要特性,电路图,材料清单和PCB设计图. The HiperPFS™-4 devices incorporate a continuous conduction mode (CCM) boost PFC controller, gate driver and 600 V power MOSFET in a single, low-profile (GROUND pin connected) power package. HiperPFS-4 devices eliminate need for external current sense resistors and their associated power loss, and use an innovative control technique that adjusts the switching frequency over output load, input line voltage, and input line cycle.  This control technique maximizes efficiency over the entire load range, particularly at light loads. Additionally, it minimizes the EMI filtering requirements due to its wide bandwidth spread spectrum effect. The HiperPFS-4 uses advanced digital techniques for line monitoring, line feed-forward scaling, and power factor enhancement; while using analog techniques for the core controller in order to maintain extremely low no-load power consumption. The HiperPFS-4 also features an integrated non-linear error amplifier for enhanced load transient response, a user programmable Power Good (PG) signal as well as user selectable power limit functionality. HiperPFS-4 includes Power Integrations’ standard set of comprehensive protection features, such as UV, OV, brown-in/out, and hysteretic thermal shutdown. HiperPFS-4 also provides cycle-by-cycle current limit and Safe Operating Area (SOA) protection of the power MOSFET, output power limiting for overload protection, and pin-to-pin short-circuit protection HiperPFS-4’s innovative variable frequency continuous conduction mode operation (VF-CCM) minimizes switching losses by maintaining a low average switching frequency, while modulating the switching frequency in order to suppress EMI, the traditional challenge with continuous conduction mode solutions. Systems using HiperPFS-4 typically reduce the total X and Y capacitance requirements of the converter, the inductance of both the boost choke and EMI noise suppression chokes, thereby reducing overall system size and cost. Additionally, HiperPFS-4 devices dramatically reduce component count and board footprint while simplifying system design and enhancing reliability, when compared with designs that use discrete MOSFETs and controllers. The innovative variable frequency, continuous conduction mode controller enables the HiperPFS-4 to realize all of the benefits of continuous conduction mode operation while leveraging low-cost, small, simple EMI filters.  Many regions mandate high power factor for many electronic products with high power requirements. These rules are combined with numerous application-specific standards that require high power supply efficiency across the entire load range, from full load to as low as 10% load. High efficiency at light load is a challenge for traditional PFC solutions where fixed MOSFET switching frequencies cause fixed switching losses on each cycle, even at light loads. In addition to featuring flat efficiency across the load range, HiperPFS-4 also enables a high power factor of >0.95 at 20% load. HiperPFS-4 simplifies compliance with new and emerging energy-efficiency standards over a broad market space in applications such as PCs, LCD TVs, notebooks, appliances, pumps, motors, fans, printers and LED lighting. HiperPFS-4’s advanced power packaging technology and high efficiency simplify the complexity of mounting the IC and thermal management, while providing very high power capabilities in a single compact package; these devices are suitable for PFC applications with maximum continuous power from 75 W to 405 W universal (550 W high-line only).  HiperPFS-4系列产品亮点: Protected Power Factor Correction Solution  Incorporates 600 V power MOSFET, controller and gate driver. EN61000-3-2 Class C and Class D compliance. Integrated protection features reduce external component count Accurate built-in brown-in/out protection.  Accurate built-in undervoltage (UV) protection. Accurate built-in overvoltage (OV) protection. Hysteretic thermal shutdown (OTP). Internal power limiting function for overload protection. Cycle-by-cycle power-switch current limit. Internal non-linear error amplifier for enhanced load transient response  No external current sense resistor required. Provides ‘lossless’ internal sensing via sense-FET.  Reduces component count and system losses. Minimizes high current gate drive loop area. Minimizes output overshoot and stresses during start-up Integrated power limit.  Improved dynamic response. Digitally controlled input line feed-forward gain adjustment for flattened loop gain across entire input voltage range.  Eliminates up to 39 discrete components for higher reliability and lower cost. Solution for High Efficiency, Low EMI and High PF  Continuous conduction mode PFC uses novel constant amp-second [on-time] volt-second [off-time] control. High efficiency across load. High power factor across load. Frequency sliding technique for light load efficiency improvements.>95% efficiency from 10% load to full load achievable at nominal input voltages.  Variable switching frequency to simplify EMI filter design. Varies over line input voltage to maximize efficiency and minimize EMI filter requirements.  Varies with input line cycle voltage by >60 kHz to maximize spread spectrum effect.  Advanced Package for High Power Applications  Up to 450 W [universal], 610 W [high-line only] peak output power capability in a highly compact package.  Simple adhesive or clip mounting to heat sink. No insulation pad required and can be directly connected to heat sink.  Staggered pin arrangement allows simple routing of board traces and to meet high-voltage creepage requirements.  Single package solution for PFC converter reduces assembly costs and layout size. HiperPFS-4系列主要优势: Integrated 600 V MOSFET  High efficiency and power factor across load range >95% efficiency from 10% load to 100% load  <60 mW no-load consumption at 230 VAC  PF >0.95 achievable at 20% load  EN61000-3-2 Class C and D compliant  Highly integrated for smallest boost PFC form factor  Packaging optimized for high volume production  Eliminates insulating pad/heat-spreader  Programmable Power Good (PG) signal  User selectable power limit: Enables different HiperPFS-4 family members to be tested in the same design for optimum device selection  Integrated non-linear amplifier for fast output OV and UV protection and transient response  Digital line peak detection for robust performance even with distorted input voltage from UPS or generators  Digital power factor enhancer compensates for EMI filter and bridge distortion, providing high-line PF >0.95 @ 20% load  Frequency adjusted over line voltage and thru each line cycle Spread-spectrum across >60 kHz window simplifies EMI filtering  Reduces boost inductance  Provides up to 450 W peak output power for universal applications, 610 W for high-line only applications  Protection features include: UVLO, UV, OV, OTP, brown-in/out, cycle-by-cycle current limit and power limiting for overload protection  Withstands 305 VAC steady-state and 410 VAC abnormal input  Halogen free and RoHS compliant  HiperPFS-4系列应用: •PC  • High-power adaptors  •Printer • High-power LED lighting  •LCD TV  • Industrial and appliance  •Video game consoles  • Generic PFC converters  •80 Plus™ Platinum designs  图1.HiperPFS-4系列功能框图 图2.HiperPFS-4系列典型应用电路框图 采用HiperPFSTM-4 PFS7627H的275W PFC前端参考设计DER-547 This engineering report describes a PFC power supply utilizing a HiperPFS-4 PFS7627H PFC controller with integrated power MOSFET and external boost diode. This power supply is intended as a general purpose platform that operates from 100 VAC to 300 VAC input voltage and provides a regulated 440 V DC output voltage and continuous output power of 275 W.  The DER-547 power supply is designed to operate with forced air cooling greater than 200 LFM for all input and load conditions up to the rated maximum ambient temperature of 50 ºC.  This document contains the power supply specification, schematic, bill of materials, inductor documentation, printed circuit layout, and performance data. 图3.275W PFC前端参考设计DER-547外形图(顶视图) ] AO-Electronics 傲壹电子 官网:www.aoelectronics.com 中文网:www.aoelectronics.cn ALPS ADI IR JRC/NJR KEC OTAX Seoul Semiconductor TI Walsin Technology 图4.275W PFC前端参考设计DER-547外形图(底视图) 275W PFC前端参考设计DER-547主要特性: • Wide operating range 100 VAC – 300 VAC  • Highly integrated, low component count, low-cost PFC  • Ultra-low reverse recovery loss diode (QspeedTM)  • Power Integrations eSIP-16 low-profile controller package  • “Cool-Pad” package reduces IC mounting hardware • Eliminates insulating pad/heat-spreader  • EN61000-3-2 Class-D compliant  • High PFC efficiency enables up to 80+ Platinum PC Main design  • Enhanced light load power factor (PF) • PF >0.95 at 20% load and 230 VAC, 50 Hz input  • PF >0.95 at 50% load  • Frequency sliding maintains high efficiency across load range • >95% from 20% to 100% load (115 VAC and 230 VAC input)  • Feed forward line sense gain – maintains relatively constant loop gain over entire operating voltage range  • Excellent transient load response  • Frequency adjusted over input line voltage and load • Spread-spectrum across >60 kHz window simplifies EMI filtering requirements  275W PFC前端参考设计DER-547电源指标: 图5.275W PFC前端参考设计DER-547电路图 275W PFC前端参考设计DER-547材料清单: 图6.275W PFC前端参考设计DER-547 PCB顶层布局图 图7.275W PFC前端参考设计DER-547 PCB底层布局图

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