SYSTEMS AND METHODS FOR SELF-CONTAINED AUTOMATIC BATTERY CHARGING AND BATTERY-LIFE-EXTENSION CHARGING

摘要

The disclosure provides embodiments of a self-contained automatic battery charging system having a printed circuit board (PCB) that enables inputting an alternating current (AC) power flow to the system. A first switchmode converter converts an AC input power to a direct current (DC) power, providing an active power factor correction. The first switchmode converter comprises an isolation transformer, which provides an electrical isolation between a primary circuitry and a secondary circuitry of the system. A second switchmode converter regulates system output voltage and limits system output current to an electrical load. The DC output is connected to a battery, another electrical storage device, and/or a parallel-connected DC load to be powered. An optional accessory PCB electrically connects to the power PCB and provides features including an LCD, alarm output relay(s), and/or a controller area network bus (CANbus) interface. The system may implement a battery-life-extension charging regime. Other embodiments are disclosed.

主权项

1. A battery-life-extension charging system, comprising:
a monitoring component configured to measure a direct current (DC) output current delivered by the charging system to a battery, wherein the DC output current is a function of an existing charge status of the battery; a timing component; and a charge control system in communication with the monitoring component and the timing component, the charge control system configured for:
obtaining at least one of a time measurement from the timing component and a charge measurement from the monitoring component;based on the at least one of the time measurement and the charge measurement, determining at least one of a time to complete a charge mode cycle and a charge to complete a charge mode cycle, each tailored achieve a desired charge status of the battery; andbased on the at least one of the time and the charge to complete the charge mode cycle, transitioning to a select one of a number of DC output voltage settings until the time to complete the charge mode cycle has passed or the charge to complete the charge mode cycle has been provided, wherein the DC output voltage settings include at least an eco-float output voltage setting, a refresh output voltage setting, and a boost output voltage setting.