JPS5992730A - Charge control circuit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a charging control circuit Ml-, and in particular uses a circuit for comparing and detecting the charging voltage of a storage battery and a timer circuit as a magneto-optical detection means for a storage battery such as a Siever. By this, it is possible to set the opto-magnetic time of the storage battery to the optimal length (by attaching a leather lamp to the two-wire circuit (secondly, it is possible to set the optical magnetic time of the storage battery to the optimum length), and to use a flashing or other reporting device for an arbitrary length of time. Concerning an inexpensive charging control circuit that can be installed.

[Technical background of the invention and its problems]

FIG. 1 shows a conventional charging control circuit, and the configuration of this circuit is shown in the following diagram.

In other words, in Figure 1 (see Figure 2), if we consider the case where the battery 5 is connected, the timer 7 is reset as soon as the power is turned on, and the transistor 6 is turned off, while the AC input from the AC input terminal is reset. The AC power is smoothed by a semiconductor rectifying element 1 and applied to an oscillator (inverter) 2.The output of the oscillator 2 is outputted via a transformer 3, and is converted into a DC current by a semiconductor rectifying element 4 and converted into a battery 5 ( A second charge is performed.Meanwhile, the timer 7 outputs a time-up output after a certain period of time has elapsed.This makes the transistor conductive and turns the oscillation circuit 2 OFF'.Thus, the output from the transformer 3 0, and charging of the storage battery 5 is stopped.The charging time of this charger is adjusted by the set time of the timer 7.

In a light-duty system like the one above, the charging time of the storage pond is determined by the time it takes. Therefore, if there is a temporary interruption in charging due to a power outage while charging, etc. , the timer 7 would have to start operating from the beginning again, resulting in overcharging.Also, the timer would have to operate once for a long time, so there was a problem from the point of view of energy conservation.

[Purpose of the Invention] This invention was made to solve the above-mentioned drawbacks. 2. To provide a Marugame control circuit that can avoid overcharging of the battery even if the battery is charged again after completion of charging (2) and can save energy.

[Summary of the invention]

That is, the present invention is characterized by adding a Niratch circuit 8, a magnetic pressure generator 20, a comparator 10, and a transistor 9 as a gate circuit to the conventional charging circuit with a timer.

According to this invention (2), when the capacity of the storage battery is small, i.e., initial charging is performed, the amount of charge to the storage battery is is dominated, and the capacity of the storage battery is set to the specified value (after 2nd speed, the timer circuit charges the sleeve and displays the display lamp, etc. (for V report).
This is a filling-suppressing circuit that regulates the fujishing operation.

〔Effect of the invention〕

In this invention, the charging operation itself has a double structure depending on the charging period of the storage battery, and the specified charging is ensured in the initial operation,
In the second operation, supplementary charging is performed for the time required, and an alarm device can be installed, and the charging circuit is turned off after the timer operates, which has an energy saving effect and an overcharging prevention effect.

[Embodiments of the invention]

The present invention will be described in detail below with reference to the drawings. Second
The figure is a configuration diagram showing an embodiment of the charging control 111 circuit according to the present invention (2).

At the same time as Ichihara is turned on, the timer 7 is reset and the gate circuit (transistor) 6 is kept in the OFF state.

On the other hand, the voltage input to the comparator 10 is lower than the reference voltage from the viscous low voltage generator, so the output from the comparator 10 is Low. Therefore, the transistor 9 forming the gate circuit is OFF.

Therefore, the main power supply 2 (2 is normally biased and the 1st power supply 2 is normally operated at 11.9. Therefore, the storage battery 5 is charged.

When the storage battery 5 is filled with the specified capacity, the terminal magnetic voltage becomes higher than the reference voltage of the reference low-voltage generator, so the output for the comparator becomes High and the transistor 9 is turned on. Therefore, the normal bias is no longer applied to the oscillator 21-, and the oscillation stops, and the charging of the storage battery 5 is stopped.

On the other hand, when the output of the comparator 10 becomes High, the output circuit 8 is latched and the timer 7 is operated (two modes). The voltage voltage V6 has so-called hysteresis characteristics, in which the reference voltage during discharge is different from the base voltage during discharge.
In the generator, the heavy pressure during charging generates a reference voltage that is higher than the magnetic pressure during discharge (low voltage when charging is stopped).

) On the other hand, charging of the storage battery 5 that has reached the specified capacity (-) is stopped (2. The storage battery 5 starts demagnetizing. pressure)(
When moving to second gear, +1) and 1 Minike are light weighted, and the above-mentioned movement is repeated. On the other hand, the timer 7 outputs a time-up signal after a certain period of time has elapsed. This (two-voltage gate circuit (transistor 6) 6 is turned on. Here, transistor 9 and transistor 6 form an OR circuit, so when the negative transistor turns on, the turned-on transistor (two-voltage right Therefore, the normal bias is no longer applied to the excavator 2, and charging is stopped from now on. Able to construct circuits.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a conventional redundant +II control circuit, and FIG. 2 is a block diagram of an embodiment of a light weight +1 circuit according to the present invention. ...Half-tatami i4-carrier 01shi element, 2...Oscillator, 3
...Trance, 5...''1 Pond, 6.19
...transistor,

Claims (2)

[Claims] (1) A comparator that compares the terminal voltage of the answering pond with the reference magnetic voltage of the reference voltage generator, and a
A first gate circuit that controls the light U, a latch circuit that receives the output of the comparator and performs a latch operation, a timer circuit that receives the output of the latch circuit, and a second gate circuit that supports the output from the timer. The second gate circuit, a part of the first gate circuit, and a part of the second gate circuit are used in common to form an OR circuit, and the battery storage time is controlled by C2. charging control circuit. (2) The timer circuit and circuit in item (1) above are the same as in item (1) above.
Patent No. 6, which is characterized in that the timer operates (two people) in response to the output of the latch circuit that operates according to the output of the comparator.
Charging control circuit for the Nth range IJjJ, N pi machine.