Battery charge circuit with multi-charge stage and method thereof
First Claim
1. A charge circuit for charging at least one battery, comprising:
- a first current generating circuit for generating a first charge power having a first charge current in pulse form with a first frequency and a first charge voltage to charge the at least one battery, wherein the first charge current in the first charge stage remains substantially constant, the first charge voltage remains a fist constant voltage;
a voltage generating circuit connected to the first current generating circuit for controlling the first charge power having a first charge current in pulse form with a first frequency and a first charge voltage;
a voltage control circuit connected to the voltage generating circuit for generating a first constant voltage and/or a second constant voltage; and
a second current generating circuit connected to the voltage generating circuit for generating a variant power comprising a variant current in pulse form with a second frequency wherein a charge voltage included in the variant power varies with the second frequency.
1 Assignment
0 Petitions
Accused Products
Abstract
A charge circuit having multi charge stages for charging at least one battery includes: a first current generating circuit for generating a first charge power having a first charge current in pulse form with a first frequency and a first charge voltage to charge the at least one battery; a voltage generating circuit connected to the first current generating circuit for controlling the first charge power having a first charge current in pulse form with a first frequency and a first charge voltage; a voltage control circuit connected to the voltage generating circuit for generating a first constant voltage and/or a second constant voltage; and a second current generating circuit connected to the voltage generating circuit for generating a variant power comprising a variant current in pulse form with a second frequency wherein a charge voltage included in the variant power varies with the second frequency.
-
Citations
58 Claims
-
1. A charge circuit for charging at least one battery, comprising:
-
a first current generating circuit for generating a first charge power having a first charge current in pulse form with a first frequency and a first charge voltage to charge the at least one battery, wherein the first charge current in the first charge stage remains substantially constant, the first charge voltage remains a fist constant voltage;
a voltage generating circuit connected to the first current generating circuit for controlling the first charge power having a first charge current in pulse form with a first frequency and a first charge voltage;
a voltage control circuit connected to the voltage generating circuit for generating a first constant voltage and/or a second constant voltage; and
a second current generating circuit connected to the voltage generating circuit for generating a variant power comprising a variant current in pulse form with a second frequency wherein a charge voltage included in the variant power varies with the second frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A charge system for charging at least one battery, comprising:
-
an interface provided with a plurality of control buttons, each of which corresponds to an specific function;
a microprocessor executing the specific function when the corresponding control button is pressed;
a charge circuit controlled by the microprocessor for charging at least one battery, the circuit comprising;
a first current generating circuit for generating a first charge power having a first charge current in pulse form with a first frequency and a first charge voltage to charge the at least one battery, wherein the first charge current in the first charge stage remains substantially constant, the first charge voltage remains a fist constant voltage;
a voltage generating circuit connected to the first current generating circuit for controlling the first charge power having a first charge current in pulse form with a first frequency and a first charge voltage;
a voltage control circuit connected to the voltage generating circuit for generating a first constant voltage and/or a second constant voltage; and
a second current generating circuit connected to the voltage generating circuit for generating a variant power comprising a variant current in pulse form with a second frequency wherein a charge voltage included in the variant power varies with the second frequency. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
-
-
30. A charge system for charging at least one battery, comprising:
-
an interface provided with a plurality of control buttons, each of which corresponds to an specific function;
a microprocessor executing the specific function when the corresponding control button is pressed;
a charge circuit controlled by the microprocessor for charging at least one battery, wherein;
in a first charge stage, applying a first charge power having a first charge current in pulse form with a first frequency and a first charge voltage to charge the at least one battery, wherein the first charge current in the first charge stage remains substantially constant, the first charge voltage remains a fist constant voltage;
in a second charge stage following the first charge stage, applying a second power having a second charge current in pulse form with the first frequency and a second charge voltage to charge the at least one battery, wherein the second charge current in the second charge stage decreases gradually, the charge voltage remains the fist constant voltage; and
in a third charge stage following the second charge stage, applying a third charge power having a third charge current in pulse form with the first frequency and a third charge voltage to charge the at least one battery, wherein the third current in the third charge stage decreases gradually, the third charge voltage remains a second constant voltage is higher than the first constant voltage in the second charge stage; and
in a fourth charge stage following the third charge stage, applying a fourth charge power having a fourth charge current in pulse form with the first frequency and a fourth charge voltage to charge the at least one battery, wherein the fourth current in the fourth charge stage decreases gradually, the fourth charge voltage remains a second constant voltage is higher than the first constant voltage in the second charge stage. - View Dependent Claims (31, 32, 33, 34, 35)
-
-
36. A charge method for charging at least one battery, the method comprising steps of:
-
in a first charge stage, applying a first charge power having a first charge current in pulse form with a first frequency and a first charge voltage to charge the at least one battery, wherein the first charge current in the first charge stage remains substantially constant, the first charge voltage remains a fist constant voltage;
in a second charge stage following the first charge stage, applying a second power having a second charge current in pulse form with the first frequency and a second charge voltage to charge the at least one battery, wherein the second charge current in the second charge stage decreases gradually, the charge voltage remains the fist constant voltage; and
in a third charge stage following the second charge stage, applying a third charge power having a third charge current in pulse form with the first frequency and a third charge voltage to charge the at least one battery, wherein the third current in the third charge stage decreases gradually, the third charge voltage remains a second constant voltage is higher than the first constant voltage in the second charge stage;
in a fourth charge stage following the third charge stage, applying a fourth charge power having a fourth charge current in pulse form with the first frequency and a fourth charge voltage to charge the at least one battery, wherein the fourth current in the fourth charge stage decreases gradually, the fourth charge voltage remains a second constant voltage is higher than the first constant voltage in the second charge stage; and
in a maintenance stage following the fourth charge stage, applying a fifth current maintain the battery until the battery is substantially full charged. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44)
-
-
45. A charge method for charging at least one battery, the method comprising steps of:
-
in a first charge stage, applying a first charge power having a first charge current with a first frequency and a first charge voltage to charge the at least one battery, wherein the first charge current in the first charge stage remains substantially constant, the first charge voltage remains a fist constant voltage;
in a second charge stage following the first charge stage, applying a second power having a second charge current with the first frequency and a second charge voltage to charge the at least one battery, wherein the second charge current in the second charge stage decreases gradually, the charge voltage remains the fist constant voltage;
after the second charge stage, applying a variant current with a second frequency, wherein the charge voltage in this stage varies with the second frequency;
in a third charge stage following the second charge stage, applying a third charge power having a third charge current with the first frequency and a third charge voltage to charge the at least one battery, wherein the third current in the third charge stage decreases gradually, the third charge voltage remains a second constant voltage is higher than the first constant voltage in the second charge stage; and
in a fourth charge stage following the third charge stage, applying a fourth charge power having a fourth charge current with the first frequency and a fourth charge voltage to charge the at least one battery, wherein the fourth current in the fourth charge stage decreases gradually, the fourth charge voltage remains a second constant voltage is higher than the first constant voltage in the second charge stage. - View Dependent Claims (46, 47, 48, 49)
-
-
50. A charge method for charging at least one battery, the method comprising steps of:
-
in a first charge stage, applying a first charge power having a first charge current with a first frequency and a first charge voltage to charge the at least one battery, wherein the first charge current in the first charge stage remains substantially constant, the first charge voltage remains a fist constant voltage;
in a second charge stage following the first charge stage, applying a second power having a second charge current with the first frequency and a second charge voltage to charge the at least one battery, wherein the second charge current in the second charge stage decreases gradually, the charge voltage remains the fist constant voltage; and
in a third charge stage following the second charge stage, applying a third charge power having a third charge current with the first frequency and a third charge voltage to charge the at least one battery, wherein the third current in the third charge stage decreases gradually, the third charge voltage remains a second constant voltage is higher than the first constant voltage in the second charge stage;
in a fourth charge stage following the third charge stage, applying a fourth charge power having a fourth charge current with the first frequency and a fourth charge voltage to charge the at least one battery, wherein the fourth current in the fourth charge stage decreases gradually, the fourth charge voltage remains a second constant voltage is higher than the first constant voltage in the second charge stage; and
in a maintenance stage following the fourth charge stage, applying a fifth current maintain the battery until the battery is substantially full charged. - View Dependent Claims (51, 52, 53, 54, 55, 56, 57, 58)
-
Specification