FIG. 13 illustrates an integrated dimming LED driver and battery backup system (hereafter referred to as an “LED driver system” or “system”) between an AC mains and a set of one or more LED lights. The system 1314, as compared to those described with reference to FIGS. 3-10, does not have a dimming LED driver separate from the battery backup. In this case, the driver that draws directly from an AC mains 1305, and the driver that uses stored energy, are one and the same. In particular, the system 1314 receives AC power from the AC mains 1305, rectifies the power via a rectification circuit 1302, provides the rectified or DC power to a voltage regulator circuit 1307 (at a voltage V1), where the voltage regulator circuit 1307 controls a trickle of current to an energy storage device 1308, that charges the energy storage device 1308 to or toward a desired voltage, V2. The voltage regulator circuit 1307 can also provide voltage, V3, to a voltage to current converter 1316. The voltage, V3, can be generated from the voltage V2, across the battery, from the voltage, V1, from the rectification circuit 1302, or from a combination of the two. In other words, the voltage regulated circuit 1307 determines whether to direct power from the AC mains 1305 to the energy storage device 1308, to one or more LEDs 1304 via the voltage to current converter 1316, or whether to direct power to both. Alternatively, the voltage regulator circuit 1307 can also drain the energy storage device 1308 while pulling power from the AC mains 1305, and use both of these sources to drive the one or more LEDs 1304 through the voltage to current converter 1316. The voltage to current converter 1316 can then convert the voltage, V3, to a regulated LED current, ILED, used to drive the one or more LEDs 1304. In some cases the voltage to current converter 1316 receives the voltage, V3, and selectively generates the regulated LED current, ILED, therefrom, while in others the voltage regulator circuit 1307 selectively generates the voltage, V3. The voltage to current converter 1316 not only can turn the first LED current, ILED, on and off, but can also control the magnitude of the first LED current, ILED. A control circuit 1310 can be in communication with the rectification circuit 1302, the voltage regulator circuit 1307, and the voltage to current converter 1316. The control circuit 1310 can include a connection to a wireless radio 1320, where the wireless radio 1320 can be part of the battery backup/LED driver 1314 (as illustrated) or included as part of the control circuit 1310 (not illustrated).
