KR20020058302A - Charging method for charging current compensation - Google Patents

Abstract

PURPOSE: A charge current compensation charging method is provided to reduce manufacture cost and charging time. CONSTITUTION: In a charge current compensation charging method, a charging apparatus having a main DC supply, a first current compensating unit, a second current compensating unit, a first switch, a second switch and a micro computer is used. The first current compensating unit adjusts magnitudes of a current and a voltage to be applied to one slot A through the first switch. The two current compensating unit adjusts magnitudes of a current and a voltage to be applied to another slot B through the second switch. The micro computer controls the total supplied current as the summed amount of the charging current of the two slots during static current period. When the charging current to the slot B decreases during static voltage period, the charging current to the slot A increases by the decreased amount of the charging current to the slot B.

Description

Charging method for charging current compensation

The present invention relates to a mobile phone battery charging apparatus having a plurality of charging slots, in particular, when charging a constant charging current source in two slots to charge the constant current section with each charging current and if one slot is The present invention relates to a charging current compensation charging method for charging by compensating for another slot by a current reduced in a constant voltage section.

In general, due to the development of wireless communication technology, the cost of using a mobile phone is low, and the call quality is also improved so that a high quality call can be made even in a driving vehicle.

The basic configuration of a mobile phone is an antenna for transmitting and receiving wireless signals between a base station and a mobile phone, a speaker for allowing a user to listen to a voice signal, a microphone for receiving a user's voice, and a function button for pressing another phone's phone number or inputting data. Keypad unit, a display unit on which a dialed telephone number or a character indicating the function setting or status of the current mobile terminal is displayed, a flip to protect the keypad, and data for transmitting and receiving data Earphone connection unit for connecting the transceiver and the earphone.

In the call method of the mobile phone having such a configuration, when the number of the called party to be called is manipulated on the keypad of the mobile terminal, the called party number is displayed on the display unit, and when it is determined that the display state of the display unit is correct, the user calls. Pressing Send sends a call to the other party. When the call is connected with the other party, the call is made using the microphone and speaker which are voice input / output units configured in the mobile phone.

In general, a mobile phone is a bar-shaped, elongated bar, a flip-type like a lid attached to a bar-shaped keypad, and a liquid crystal display (LCD) part of a terminal and a key pad part. There is a clamshell.

A liquid crystal display (LCD) is used as a display unit of the mobile phone, and the display unit displays characters or pictures so that the user can see the current state of the mobile phone or various information provided by the mobile phone.

In such a mobile phone, it is exposed to the outside of the mobile phone such as driving a speaker or receiver, driving a buzzer (or ringer), driving a display unit, or driving a vibrator. Control of the working components is generally in a software manner.

That is, a general mobile phone operation method is to control the sound of the receiver on / off or to turn on / off the buzzer by operating the menu or the set up keypad while looking at the display unit while the mobile phone is turned on. It turned off, the display conditions of the display part were adjusted, or the vibrator was driven.

In the basic operation of such a mobile phone in any case, the power supplied from the battery of the mobile phone is used, such power is supplied from the battery.

As a means of charging such a battery, a conventional method is a charger having a battery seating slot. The charger typically has two slots. One slot is a slot in which only a battery can be seated, and the other slot is implemented to allow a battery coupled to a mobile phone to be seated.

In this case, when there are two charging slots as described above, the charging method is a sequential charging method for charging another slot when one slot is completed as shown in FIG. 1 and the attached FIG. As you can see, two slots are charged simultaneously.

At this time, the sequential charging method shown in FIG. 1 has a disadvantage in that it takes a long time to charge both batteries mounted in two slots.

Therefore, in recent years, as shown in the accompanying FIG. 2, a simultaneous or parallel charging method is preferred. As shown in FIG. 2, a charging method is divided into a simultaneous method and a parallel method, and the simultaneous method is 2. Since it requires two constant current and constant voltage sources, each has an advantage of independent charging, but it is expensive in terms of price.

In addition, since the parallel method uses one constant current and constant voltage source to produce the same effect as the simultaneous method, the cost of the product is lower than that of the simultaneous method, but the charging time is relatively longer than that of the simultaneous method. have.

An object of the present invention for solving the above problems relates to a mobile phone battery charging apparatus having a plurality of charging slots, in particular, in the case of charging by distributing one constant charging current source in two slots, The present invention provides a charging current compensation charging method for charging with charging current and compensating for charging another slot by one current reduced in a constant voltage section.

1 is a charging relationship graph during sequential charging.

2 is a charging relationship graph during simultaneous and parallel charging.

3 is an exemplary configuration of a charger to which the present invention is applied.

4 is a charging relationship graph according to a compensation charging method.

5 is a charging relationship graph according to another example of a compensation charging method.

In order to achieve the above object, a feature of the present invention is a parallel charging method in a charger having two slots: a constant current is supplied to two slots constantly, and the constant current supply period is a constant voltage section. When the current in the first slot decreases, the charging current increases in the second slot by the decrease.

An additional feature of the present invention for achieving the above object is that the current supplied in the constant voltage section to make the total amount of supply current constant by the amount of the sum of the constant current section of the first slot and the second slot.

Another feature of the present invention for achieving the above object is, in a parallel charging method in a charger having two slots: to provide a constant current to the two slots constantly, and proceeds from the constant current supply section to the constant voltage section In this case, when the current of the first slot decreases, the surplus current is compensated and charged to the second slot.

The above object and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention described below with reference to the accompanying drawings by those skilled in the art.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 3 is an exemplary view illustrating a configuration of a charger to which the present invention is applied, which supplies power to two slots (slots A and B), and converts a commercial AC power into a DC power to charge a battery. A first DC supply unit for supplying power and a first DC power supply for adjusting the current and voltage of the power to be supplied to the slot A side according to the input of the DC power provided from the main DC supply unit 10 and the operation control signal inputted thereto; A second current compensator for adjusting the current and voltage of the power to be supplied to the slot B side according to the current compensator 30A and the DC power supplied from the main DC supply part 10 and receiving an operation control signal. 30B) and a first switch S / W1 which is operated by an input on / off control signal and conducts power output from the first current compensation unit 30A to the slot A side during the on operation. ON / OFF control signal The second switch S / W2 which conducts the power output from the second current compensating part 30B to the slot B side during the on operation, and the current compensating parts 30A and 30B and the switch S / W1. And a microcomputer 20 for controlling the operation of the S / W2.

At this time, the present invention relates to a method in which the microcomputer 20 controls the operations of the current compensation units 30A and 30B and the switches S / W1 and S / W2. As shown in 5.

4 is a charging relationship graph according to the compensation charging method, and FIG. 5 is a charging relationship graph according to another example of the compensation charging method.

In the present invention, as shown in FIG. 4, when the current of the slot B decreases from the constant current section to the constant voltage section, the charging current increases in the slot A by the decrease. At this time, the supplied current is a method of making the total supply current constant by the amount of the sum of the constant current sections of the slots A and B.

On the other hand, as shown in FIG. 5, when the charging current of slot A decreases, there may be a method of charging by supplying the surplus current to slot B.

Accordingly, the present invention is to shorten the charging time by supplying a constant total current to the other slot by the reduction of the charging current of one slot as shown in Figure 4 and 5 attached.

While the invention has been shown and described in connection with specific embodiments thereof, it is well known in the art that various modifications and changes can be made without departing from the spirit and scope of the invention as indicated by the claims. Anyone who owns it can easily find out.

According to the charging current compensation charging method according to the present invention that operates as described above, in the case of charging by charging one constant charging current source in two slots, the constant current section is charged with each charging current and if one slot is Compensation for the other slot by the reduced current in the constant voltage section has the effect of shortening the charging time by supplying a constant total current to the other slot by the amount of charge current reduction of one slot.

Claims (3)

In a parallel charging method in a charger having two slots: When the constant current is supplied to the two slots constantly and proceeds from the constant current supply section to the constant voltage section, when the current of the first slot decreases, the charging current is increased to the second slot by the decrease thereof Current compensated charging method. The method of claim 1 The charging current compensation charging method, characterized in that the current supplied in the constant voltage section makes the total supply current constant by the amount of the sum of the constant current section of the first slot and the second slot. In a parallel charging method in a charger having two slots: Constant current is supplied to the two slots, and when the current flows from the constant current supply section to the constant voltage section, when the current of the first slot is reduced, the charging current characterized in that the charging by supplying the surplus current to the second slot Compensation charging method.