Mobile charger
First Claim
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1. A mobile charger, comprising:
- a housing, composed of an upper body and a lower body, which are fixed to each other through a fixing engagement, having a size small enough to carry in one hand;
a secondary electrical cell embedded within the housing;
an inner circuit unit, installed within the housing, comprising;
a charging circuit unit for supplying external electrical power to the secondary electrical cell, a protection circuit module for protecting the secondary cell, a DC/DC converter circuit module for boosting the voltage of the secondary cell to a predetermined voltage, an output circuit unit for converting the DC voltage boosted in the DC/DC converter circuit module tQ a predetermined constant voltage/current;
a first connection port, formed in one side of the housing, electrically connected to the inner circuit unit, in which a groove is formed for insertion fitting with a protrusion end of an input cable for charging the secondary electrical cell;
a second connection port, formed in one side of the housing, electrically connected to the inner circuit unit, in which a groove is formed for insertion fitting to a cylindrical protrusion end of an output cable for supplying charged power of the secondary electrical cell to a portable electronic device; and
a charge indicator, formed on a surface of the housing, for indicating a charged state of the electronic device by detecting the charging current flowing out of the inner circuit unit.
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Abstract
Disclosed herein is a convenient and economical mobile charger, which is small enough to be held in one hand and can electrically charge a portable electronic device by using an embedded secondary electrical cell to which electric power is supplied, particularly through an external connector functioning to transfer data to/from the electronic device, whereby the portable electronic device can be charged with improved convenience, anytime and anywhere.
72 Citations
14 Claims
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1. A mobile charger, comprising:
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a housing, composed of an upper body and a lower body, which are fixed to each other through a fixing engagement, having a size small enough to carry in one hand;
a secondary electrical cell embedded within the housing;
an inner circuit unit, installed within the housing, comprising;
a charging circuit unit for supplying external electrical power to the secondary electrical cell, a protection circuit module for protecting the secondary cell, a DC/DC converter circuit module for boosting the voltage of the secondary cell to a predetermined voltage, an output circuit unit for converting the DC voltage boosted in the DC/DC converter circuit module tQ a predetermined constant voltage/current;
a first connection port, formed in one side of the housing, electrically connected to the inner circuit unit, in which a groove is formed for insertion fitting with a protrusion end of an input cable for charging the secondary electrical cell;
a second connection port, formed in one side of the housing, electrically connected to the inner circuit unit, in which a groove is formed for insertion fitting to a cylindrical protrusion end of an output cable for supplying charged power of the secondary electrical cell to a portable electronic device; and
a charge indicator, formed on a surface of the housing, for indicating a charged state of the electronic device by detecting the charging current flowing out of the inner circuit unit. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 13, 14)
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2. A mobile charger, comprising:
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a housing, composed of an upper body and a lower body, which are fixed to each other through a fixing engagement, having a size small enough to carry within-one hand;
a secondary electrical cell embedded within the housing;
an inner circuit unit, installed within the housing, comprising;
a charging circuit unit for supplying external electrical power to the secondary electrical cell, a protection circuit module for protecting the secondary cell, a DC/DC converter circuit module for boosting the voltage of the secondary cell to a predetermined voltage, an output circuit unit for converting the DC voltage, boosted in the DC/DC converter circuit module, to a predetermined constant voltage/current;
a first connection port, formed in one side of the housing, electrically connecting to the inner circuit unit, in which a groove is formed for insertion fitting with a protrusion end of an input cable for charging the secondary electrical cell;
a second connection port, formed integrally with the housing, electrically communicating with the inner circuit unit and directly connecting to an external connector of a portable electronic device so as to supply charged power of the secondary electrical cell to the portable electronic device; and
a charge indicator, formed on a surface of the housing, for indicating a charged state of the electronic device by detecting the charging current flowing out of the inner circuit unit. - View Dependent Claims (10, 11, 12)
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Specification