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LED lighting system with battery for demand management and emergency lighting

專利號(hào)
US11177687B2
公開日期
2021-11-16
申請(qǐng)人
Anthony Catalano; Steven S. Davis; Charles Teplin; Anthony N. McDougle（US MA Wilmington）
發(fā)明人
Anthony Catalano; Steven S. Davis; Charles Teplin; Anthony N. McDougle
IPC分類
H02J9/00; H02J9/06; H05B45/10; H05B47/19; H05B45/3725; H02J7/00; H02J7/04
技術(shù)領(lǐng)域
voltage,mains,energy,led,storage,regulator,dimming,power,controller,backup
地域： CO CO Boulder

摘要

This disclosure describes systems, methods, and apparatus for a combined LED driver and emergency backup battery system. The LED driver can include current regulation circuitry as well as a bus enabling charging and discharging of an energy storage device from and to the bus. A master controller can control charging and discharging of the energy storage device via a controller of an energy storage management system, and also communicate with the current regulation circuitry to control a balance of power between an AC mains, the energy storage device, and driving of an LED light source. Accessories may be coupled to the bus and receive low voltage power from the bus and optionally receive commands from the master controller and provide sensed data back to the controller. A wireless network interface to the master controller can enable system states based on electrical power company indications and instructions.

說明書

To avoid a decrease in light output (e.g., line 1206), the master controller can offset the decrease in AC mains power with power drawn from that stored in the energy storage device 3108, 3208. In particular, the master controller can instruct the controller 3174, and hence the step down converter 3170, or the controller 3274, and hence the converter 3276, to provide power from the energy storage device 3108, 3208 to the bus 3060. In some embodiments, the step up converter 3172 in FIG. 31 can be used to discharge the energy storage device 3108 into the bus 3060. Typically, the step down converter 3170 or converter 3276 provides a regulated voltage output equal to the bus voltage, V3, and allows the current output to the bus 3060 to vary in order to meet a draw needed by the current regulator 3008 to keep the one or more LEDs at a maximum desired luminosity. The solid line 1208 in the lower chart of FIG. 12 also shows the light output when a combination of AC mains power and power from the energy storage device 3108, 3208 are used in combination to drive the one or more LEDs.

This feature can be referred to as “battery assist.” Battery assist, can generate (1) a constant luminosity output (line 1208), or (2) a reduction in the cost of power (line 1204), where even greater dimming is used in combination with power from the energy storage device 3108, 3208.

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