Patent ID: 9071145
Filing Date: 2015-06-30
Classification: H02J,H02M

Abstract:
1. A method for stealing power from an AC power source, the stolen power being used, at least at times, to power a control device, wherein the control device is configured to switch power “on” and “off” from the AC power source to a building control device, the method comprising: periodically or intermittently diverting power from the AC power source to a power stealing block; when power is diverted to the power stealing block, charging a charge storage device by supplying a first non-zero current via a first path if it is desirable to charge the charge storage device faster, and charging the charge storage device by supplying a second non-zero current via a second path if it is desirable to charge the charge storage device slower, wherein the first non-zero current is different from the second non-zero current; and providing operating power to the control device from the charge storage device.