Battery charge current management system and related integrated circuit
AssigneeMonolithic Power Systems, Inc.
InventorsChristian Sporck, Rui Wang, Min Xu
Life of this patent
Estimating the term…
Abstract
A battery charge current management system used for charging battery packs. The battery charge current management system has a voltage converting circuit and at least one switch module. The voltage converting circuit can operate at a charge mode or a discharge mode. The voltage converting circuit can serve to provide a master charge current signal to supply a system load and charge battery packs when it operates at the charge mode. The voltage converting circuit further controls the at least one switch module to provide at least one additional charge current signal to supply the system load and charge battery packs.
Claims30
A battery charge current management system, comprising:
- a voltage converting circuit, having a first pin, a second pin, and a third pin;
- and
- a first switch module, having a first terminal coupled to the first pin, a second terminal coupled to the second pin, and a control terminal coupled to the third pin;
- and wherein
- when the battery charge current management system is configured to operate in a charge state, the voltage converting circuit is configured to receive an input voltage signal at the first pin, and further configured to convert the input voltage signal to a system voltage signal at the second pin, and further configured to generate a master charge current signal at the second pin, and further configured to control the first switch module to generate a first additional charge current signal at the second terminal of the first switch module.
A battery charge current management system, comprising:
- a voltage converting circuit, having a first pin coupled to a USB port, and a second pin coupled to a battery pack;
- a switch module, having a first terminal coupled to the first pin, a second terminal coupled to the second pin;
- and wherein
- the voltage converting circuit is configured to generate a master charge current signal at the second pin when an input voltage signal is received at the first pin, and further configured to control the switch module to generate an additional charge current signal at the second terminal of the switch module.
A voltage converting integrated circuit, comprising:
- a first pin;
- a second pin;
- and
- a third pin, configured to provide a switch module control signal;
- wherein
- when an input voltage signal is received at the first pin, the voltage converting circuit is configured to generate a master charge current signal at the second pin, and the switch module control signal is configured to control a switch module to generate an additional charge current signal at the second pin;
- when an output voltage signal is provided at the first pin, the voltage converting circuit is configured to generate a master discharge current signal at the first pin, and the switch module control signal is configured to control the switch module to generate an additional discharge current signal at the first pin.
Dependencies are inferred from the claim text.