KR960019895A - Charging device and charging control method of rechargeable battery - Google Patents

Abstract

1. The technical field of the invention described in the claims

The present invention relates to a charging device for a rechargeable battery and a method of controlling the same.A method of preventing uncharged by removing the virtual delta volt phenomenon and a method of identifying a fully charged battery by reading the actual voltage of the battery. It is about how to prevent.

2. Technical problem to be solved in invention

It is very difficult to determine the actual battery capacity only by the battery voltage. In addition, there is a risk of uncharged due to the virtual delta volt phenomenon and it is difficult to identify a fully charged battery. The present invention eliminates the phenomenon of virtual negative delta bolts to prevent uncharged and to identify the fully charged battery to prevent overcharge.

3. Summary of Solution to Invention

The battery voltage is discharged for a predetermined time to detect the actual voltage of the battery, and if the detected voltage is a corresponding voltage to cause the phenomenon of virtual negative delta volts, the battery voltage can be checked after charging for a predetermined time. A detection circuit, a discharge circuit, a charge voltage generation circuit, and a control circuit are provided.

4. Important uses of the invention

Battery charger.

Description

Charging device and charging control method of rechargeable battery

As this is a public information case, the full text was not included.

1 is a circuit diagram of a charging device for a rechargeable battery according to the present invention;

2 is a flowchart of a charging control method according to the present invention.

Claims (13)

A charging device for charging a voltage in a rechargeable battery, comprising: a battery voltage holding means for sensing and outputting the voltage level, discharge means for discharging the voltage of the battery in a path of ground in response to a discharge control signal, and a predetermined level; A charging pass means connected between the charging supply voltage of the battery and the battery and switching in response to a charging control signal to connect the generated voltage to the battery, and input of a voltage of the battery output from the battery voltage sensing means. Controlled to supply a discharge control signal to the discharge means for a predetermined time, and then supply a charge control signal to the charge pass means for charging a voltage of the battery for a time corresponding to the voltage level charged in the battery. Charging apparatus, characterized in that configured by means. The battery of claim 1, wherein the control unit comprises: an analog digital conversion unit for converting the sensed voltage of the analog output from the battery voltage detection unit into a digital; and an information output from the analog digital conversion unit; And a control unit for generating a discharge control signal and a charge control signal related to charging. 3. The charging control method of claim 2, wherein the controller compares a sensed voltage output from the analog digital converting means with a preset first voltage V1 and a second voltage V2, respectively, and charges when the sensed voltage is lower than the first voltage. And a comparing means for outputting a signal and outputting the charging control signal for a predetermined time when the sensed voltage is lower than the second voltage V2. The charging control apparatus as claimed in claim 3, wherein the controller further comprises display means for displaying a voltage of the battery according to the result of the comparing means. A charging device for charging a voltage in a rechargeable battery, the charging device comprising: battery state sensing means for sensing a temperature of a battery and sensing and outputting a voltage level of the battery and a voltage of the battery to ground in response to a discharge control signal; Discharge means for discharging by a path, voltage generation means for generating and outputting a charging voltage of a predetermined level in response to an input of a voltage generation control signal, and a charge control signal connected between an output terminal of the voltage generation means and the battery A charging pass means for switching the generated voltage to the battery by switching in response to the battery; and a voltage of a battery output from the battery state sensing means and a temperature of the battery to control a discharge control signal to the discharge means for a predetermined time. After providing the charging control signal for a time corresponding to the voltage level charged in the battery And a control means for supplying the charge path means to charge the voltage of the battery. 6. The voltage generating means of claim 5, wherein the voltage generating means comprises a current regulator and a switching regulator for stabilizing and outputting a current output from the current regulator and a voltage of a predetermined level in response to an input of the voltage generation control signal. Charge control device. The method of claim 6, wherein the battery state detecting means, the battery voltage sensing unit 14 for detecting the voltage level of the battery output from the battery and supplying to the control means, and the charge temperature of the battery to sense the control Charge control device, characterized in that consisting of a battery temperature sensor 16 for supplying means. The method of claim 7, wherein the control means, analog-digital for converting the sensed voltage and the sensed temperature output from the battery voltage detector 14 and the battery temperature sensor 16 as analog signals respectively; And a central processing unit that analyzes information output from the analog-digital conversion means and generates a discharge control signal, a charge control signal, a voltage generation control signal, and a charge state display signal related to battery charging. Charge control device. The charging control device as claimed in claim 7, further comprising a battery charge display means for displaying a charge state display signal output from the central processing unit. A rechargeable battery, a voltage sensing means for sensing and outputting a voltage of the battery, voltage generating means operated by a predetermined control to generate a charging voltage of the battery, and voltage of the battery by input of a discharge control signal. A charging control method of a charging apparatus comprising a discharge means for discharging a battery to a discharge furnace and a control means for controlling the voltage charging of the battery by scanning an output of the voltage sensing means, wherein the battery is responsive to the insertion of the battery. Charging the battery, comprising: a voltage discharge process of a battery for discharging a voltage for a predetermined time through the discharge path; and a charging process for supplying and charging the generated charge voltage to the voltage discharged battery for a predetermined time period Control method. A rechargeable battery, a voltage sensing means for sensing and outputting a voltage of the battery, a voltage generating means operated by a predetermined control to generate a charging voltage of the battery, and a voltage of the battery by input of a discharge control signal Discharge means for discharging the battery to a discharge furnace, control means for scanning the output of the voltage sensing means to control voltage charging of the battery and outputting display data of the control state, and controlling the charge state by the control means. In a charging control method of a charging device having a display means for displaying, the discharge process of discharging the voltage of the battery for a predetermined time while the battery insertion state is displayed in response to the output of the voltage sensing means And detect a voltage level of the voltage-discharged battery and set a voltage and a preset voltage of the battery detected after the discharge. Supplying the charging voltage to the battery for a preset time when it is determined that the level comparison process comparing the level of the voltage and the voltage of the battery detected after the discharge in the voltage level comparison process is less than the level of the mirror set voltage, The charging control method of the battery, characterized in that the charging process for displaying the full charge state when the voltage of the battery by the supply of the charge voltage is the level of the full charge voltage. The charging control method according to claim 11, wherein the level of the preset voltage is a full charge level of the battery. The charging control method as claimed in claim 11, wherein the level of the preset voltage is a corresponding voltage level of a virtual delta volt of a battery. ※ Note: The disclosure is based on the initial application.