J. Semicond. > Volume 39 > Issue 10 > Article Number: 105001

High-performance pulse-width modulation AC/DC controller using novel under voltage lockout circuit according to Energy Star VI standard

Min Qi 1, 2, , Quan Sun 3, , and Donghai Qiao 2,

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Abstract: This paper proposes a high-performance pulse-width modulation (PWM) AC/DC controller, which can drive a high-voltage (HV) 650-V power metal-oxide-semiconductor field-effect Transistor (MOSFET) in typical applications of adapters in portable electronic devices. In order to reduce the standby power consumption and improve the response speed in the start-up state, an improved under voltage lockout (UVLO) circuit without a voltage reference source or comparator is adopted. The AC/DC controller is fabricated using a 40-V 0.8-μm one-poly two-metal (1P2M) CMOS process, and it only occupies 1410 × 730 μm2. A 12 V/2 A flyback topology for quick-charge application is illustrated as the test circuit, which is currently one of the most advanced power adapters in use. Test values show that the turn-on and the turn-off threshold voltages are 19.318 and 8.01 V, respectively. A high hysteresis voltage of 11.308 V causes the value of the power-charging capacitor to decrease to as low as 1 μF to reduce production cost. In addition, the start-up current of 2.3 μA is extremely small, and is attributed to a reduction in the system's standby power consumption. The final test results of the overall system are proven to meet the Energy Star VI standard. The controller has already been mass produced for industrial applications.

Key words: controllerUVLOEnergy Star VIquick-chargeZener diodemass production

Abstract: This paper proposes a high-performance pulse-width modulation (PWM) AC/DC controller, which can drive a high-voltage (HV) 650-V power metal-oxide-semiconductor field-effect Transistor (MOSFET) in typical applications of adapters in portable electronic devices. In order to reduce the standby power consumption and improve the response speed in the start-up state, an improved under voltage lockout (UVLO) circuit without a voltage reference source or comparator is adopted. The AC/DC controller is fabricated using a 40-V 0.8-μm one-poly two-metal (1P2M) CMOS process, and it only occupies 1410 × 730 μm2. A 12 V/2 A flyback topology for quick-charge application is illustrated as the test circuit, which is currently one of the most advanced power adapters in use. Test values show that the turn-on and the turn-off threshold voltages are 19.318 and 8.01 V, respectively. A high hysteresis voltage of 11.308 V causes the value of the power-charging capacitor to decrease to as low as 1 μF to reduce production cost. In addition, the start-up current of 2.3 μA is extremely small, and is attributed to a reduction in the system's standby power consumption. The final test results of the overall system are proven to meet the Energy Star VI standard. The controller has already been mass produced for industrial applications.

Key words: controllerUVLOEnergy Star VIquick-chargeZener diodemass production



References:

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Liu S L, Wang Q Q, Wang C Y, et al. Optimization design of under voltage lockout circuit in power management chips based on standard BCD process. IEEE International Conference on Integrated Circuits and Microsystems (ICICM), 2017: 82

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Glover M D, Shepherd P, Francis A M, et al. A UVLO circuit in SiC compatible with power MOSFET integration. IEEEmerg E J Sel Top Power Electron, 2014: 425

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Song K, Oh W, Choi J. A UVLO with zero static power consumption power-on reset circuit in HVIC. IEEE Applied Power Electronics Conference and Exposition (APEC), 2017: 1085

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Meena N K, Swarnkar A, Gupta N, et al. An UVLO featured average current mode controlled boost converter design for automotive industry applications. IEEE 1st International Conference on Power Electronics, Intelligent Control and Energy Systems (ICPEICES), 2016: 1

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Mo Y, Song W, Lee J, et al. Design of a 5 V-output boost DC-DC converter with improved protection functions for battery-operated devices. International Conference on System Science and Engineering (ICSSE), 2017: 757

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Li F H, Wang W, Hang Q P, et al. Design of a under voltage lock out circuit with bandgap structure. Proceedings of the 2009 12th International Symposium on Integrated Circuits, 2009: 224

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Cho M H, Lee W H, Kim J S, et al. Development of undervoltage lockout (UVLO) circuit configurated Schmitt trigger. International SoC Design Conference (ISOCC), 2015: 59

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Zhao Y R, Lai X Q. Novel bandgap-based under-voltage-lockout methods with high reliability. J Semicond, 2013, 34(10): 105008

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Arulselvi S, Deepa K, Uma G. Design, analysis and control of a new multi-output flyback CF-ZVS-QRC. IEEE International Conference on Industrial Technology, 2005: 413

[1]

Li Y, Zheng J. A low-cost adaptive multi-mode digital control solution maximizing AC/DC power supply efficiency. Twenty-Fifth Annual IEEE Applied Power Electronics Conference and Exposition (APEC), 2010: 349

[2]

Kim S K, Kim J S, Lee Y I. A simple model predictive controller of a three-phase PWM AC/DC converter. International Conference on Control, Automation and Systems (ICCAS), 2013: 1571

[3]

Rakesh G, Pindoriya N M. Simulation and experimental study of single phase PWM AC/DC converter for Microgrid application. IEEE 1st International Conference on Power Electronics, Intelligent Control and Energy Systems (ICPEICES), 2016: 1

[4]

Pan H, Wu X B, Chen H, et al. Power supply module design in the low power consumption application. IEEE Conference on Electron Devices and Solid-State Circuits, 2007: 401

[5]

Zhang C, Yang Z J, Zhang Z P. A CMOS hysteresis undervoltage lockout with current source inverter structure. IEEE International Conference on ASIC, 2011: 918

[6]

Lee S, Cho K, Lee M, et al. A leakage reduced HVIC with coarse-fine UVLO. International SoC Design Conference (ISOCC), 2012: 408

[7]

Jiang J G, Tan G J, Zhang Z Y, et al. A novel dimmable LED driver with soft-start and UVLO circuits. J Semicond, 2015, 36(2): 025004

[8]

Liu S L, Wang Q Q, Wang C Y, et al. Optimization design of under voltage lockout circuit in power management chips based on standard BCD process. IEEE International Conference on Integrated Circuits and Microsystems (ICICM), 2017: 82

[9]

Glover M D, Shepherd P, Francis A M, et al. A UVLO circuit in SiC compatible with power MOSFET integration. IEEEmerg E J Sel Top Power Electron, 2014: 425

[10]

Song K, Oh W, Choi J. A UVLO with zero static power consumption power-on reset circuit in HVIC. IEEE Applied Power Electronics Conference and Exposition (APEC), 2017: 1085

[11]

Meena N K, Swarnkar A, Gupta N, et al. An UVLO featured average current mode controlled boost converter design for automotive industry applications. IEEE 1st International Conference on Power Electronics, Intelligent Control and Energy Systems (ICPEICES), 2016: 1

[12]

Mo Y, Song W, Lee J, et al. Design of a 5 V-output boost DC-DC converter with improved protection functions for battery-operated devices. International Conference on System Science and Engineering (ICSSE), 2017: 757

[13]

Li F H, Wang W, Hang Q P, et al. Design of a under voltage lock out circuit with bandgap structure. Proceedings of the 2009 12th International Symposium on Integrated Circuits, 2009: 224

[14]

Cho M H, Lee W H, Kim J S, et al. Development of undervoltage lockout (UVLO) circuit configurated Schmitt trigger. International SoC Design Conference (ISOCC), 2015: 59

[15]

Zhao Y R, Lai X Q. Novel bandgap-based under-voltage-lockout methods with high reliability. J Semicond, 2013, 34(10): 105008

[16]

Arulselvi S, Deepa K, Uma G. Design, analysis and control of a new multi-output flyback CF-ZVS-QRC. IEEE International Conference on Industrial Technology, 2005: 413

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M Qi, Q Sun, D H Qiao, High-performance pulse-width modulation AC/DC controller using novel under voltage lockout circuit according to Energy Star VI standard[J]. J. Semicond., 2018, 39(10): 105001. doi: 10.1088/1674-4926/39/10/105001.

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History

Manuscript received: 30 January 2018 Manuscript revised: 28 February 2018 Online: Accepted Manuscript: 25 April 2018 Uncorrected proof: 10 July 2018 Published: 09 October 2018

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