Process for charging a battery and battery charger to achieve the process
First Claim
1. A process for charging a battery from an alternating current voltage which provides voltage to the battery in each direction, wherein the charging current is regulated alternatively in a boost and buck mode as a function of an error (AI) between the instant value of the current and an instant value of a supply current following a pre-determined pattern, wherein the activation of the modes of operation is controlled according to the sign of the error of the current (AI), and wherein the current is regulated in each mode by regulating the size of current impulses.
2 Assignments
0 Petitions
Accused Products
Abstract
The present invention relates to a process for charging a battery from an alternating current voltage which provides voltage to the battery in each direction. The charging current is regulated alternatively in a boost and buck mode as a function of an error (AI) between the instant value of the current and an instant value of a supply current following a pre-determined pattern. The activation of the modes of operation is controlled according to the sign of the error of the current (AI). The present invention also relates to a battery charger for implementing the above charging process. The battery charger has two sub-assemblies for current regulation operating respectively in boost and buck modes, a subtractor for determining the error of current, and a common loop for feeding the sub-assemblies and controlling amplifiers for the activation, depending on the sign of the error.
-
Citations
10 Claims
- 1. A process for charging a battery from an alternating current voltage which provides voltage to the battery in each direction, wherein the charging current is regulated alternatively in a boost and buck mode as a function of an error (AI) between the instant value of the current and an instant value of a supply current following a pre-determined pattern, wherein the activation of the modes of operation is controlled according to the sign of the error of the current (AI), and wherein the current is regulated in each mode by regulating the size of current impulses.
-
4. A process for charging a battery from an alternating current voltage which provides voltage to the battery in each direction, wherein the charging current is regulated alternatively in a boost and buck mode as a function of an error (AI) between the instant value of the current and an instant value of a supply current following a pre-determined pattern, wherein the activation of the modes of operation is controlled according to the sign of the error of the current (AI), and wherein a saw-tooth shape is imposed on the regulation signal.
-
5. A process for charging a battery from an alternating current voltage which provides voltage to the battery in each direction, wherein the charging current is regulated alternatively in a boost and buck mode as a function of an error (AI) between the instant value of the current and an instant value of a supply current following a pre-determined pattern, wherein the activation of the modes of operation is controlled according to the sign of the error of the current (AI), and wherein a low-pass filter is applied to the instantaneous values of the current measured.
-
6. A battery charger used in a process for charging a battery from an alternating current voltage which provides voltage to the battery in each direction, wherein the charging current is regulated alternatively in a boost and buck mode as a function of an error (AI) between the instant value of the current and an instant value of a supply current following a pre-determined pattern, and wherein the activation of the modes of operation is controlled according to the sign of the error of the current (AI), the battery charger comprising:
-
a first and a second sub-assemblies operating respectively in boost and buck modes; a circuit for determining an error between an instantaneous current flow and an instantaneous current input, which develops in a pre-determined manner, and a common loop for feeding the sub-assemblies and controlling respective regulating circuits to activate the sub-assemblies, depending on the sign of the error. - View Dependent Claims (7, 8, 9, 10)
-
Specification