CN2483880Y

CN2483880Y - AC-DC portable charger

Info

Publication number: CN2483880Y
Application number: CN 01218890
Authority: CN
Inventors: 林亦辉
Original assignee: LISHAN SCIENCE AND TECHNOLOGY Co Ltd
Current assignee: LISHAN SCIENCE AND TECHNOLOGY Co Ltd
Priority date: 2001-04-06
Filing date: 2001-04-06
Publication date: 2002-03-27
Anticipated expiration: 2011-04-06

Abstract

The utility model relates to an alternate current-direct current two purpose portable charger which comprises a rectification circuit, a direct-current circuit, a controlling circuit and a direct-current output circuit, wherein the rectification circuit is provided with an alternate-current input end connected to an alternate-current power, the direct-current circuit stabilizes the output voltage of the rectification circuit, the controlling circuit controls to select the direct-current output of one of the rectification circuit and the direct-current circuit, and the direct-current output circuit exports the direct current exported by the controlling circuit to a lithium cell, a mobile phone or a PDA to charge. Under the situation without alternate current, by the utility model, a cell can charge a mobile phone or a personal digital assistant to relieve the quandary that users have no power to use when the users are away from home.

Description

The AC/DC Portable Charger

The utility model relates to a kind of charger, refers to especially a kind ofly connect AC power or AC/DC Portable Charger that the battery of packing into can charge to mobile phone or PDA(Personal Digital Assistant).

Because the progress of mechanics of communication, people are in a hurry when needing contact the other side, as long as mobile phone is arranged, no matter can both contact the other side in where, with the urgent accident of fast processing, so, just very convenient for the modern of busy record, and almost arrived the degree of staff one machine because of the mechanics of communication prosperity.

Moreover, if will write down stroke, phone etc., normally being recorded on notepad or the telephone directory in hand-written mode, handwriting mode then bothers, and can supply record and other multi-purpose PDA(Personal Digital Assistant) so also have now to carry.

Because portable electronic product such as mobile phone, personal digital assistant etc., become the indispensable accompanied electronic product of modern, and the employed electric energy of these electronic products, be generally the rechargeable battery of this kind electronic product, when the electric energy of rechargeable battery exhausts, then must charge; But be away from home, if when the rechargeable battery of mobile phone or PDA exhausts, then be inconvenient to obtain alternating current and charge, and expend the suitable time and charge, therefore, the electric energy of rechargeable battery exhausts Shi Zehui and puts to no little inconvenience.

This action phone is to be two kinds of different carry-on electrical equipment with PDA again, during if will charge, then this action phone uses a kind of charger, and PDA uses another kind of charger, therefore the user must prepare a lot of different chargers, and causes the trouble and inconvenience of carrying and using.

In view of the many disadvantages of above-mentioned existing charger, the purpose of this utility model is to provide a kind of and connects alternating current or AC/DC Portable Charger that the battery of packing into can charge to mobile phone or personal digital assistant.

A kind of AC/DC Portable Charger, comprise a rectification circuit, a DC circuit, a control circuit and a direct current output circuit, it is characterized in that, this rectification circuit has an alternating current input and connects AC power, and this rectification circuit is connected with the DC circuit of its output voltage of voltage stabilizing;

Control selects to have an integrated circuit U1 by this control circuit of the direct current output of rectification circuit and battery, and this integrated circuit is a power control switch circuit, and this control circuit connects this battery by one direct current input;

Export the direct current of control circuit output on the device that needs charging this direct current output circuit, have an integrated circuit U2, and this integrated circuit U2 is the voltage regulator of the direct current that always circulates.

The different connecting line of output grafting of described direct current output circuit, and each connecting line is connected with the resistance of different resistance values, and this direct current output circuit is connected on the device that needs charging by each connecting line.

Described direct current input grafting automobile cigarette lighter is imported as DC power supply.

The described device that needs to charge is lithium battery, mobile phone or personal digital assistant.

Effect of the present utility model is: not only can charge to lithium battery, mobile phone or PDA with alternating current, and can't use alternating current to charge the time, by battery mobile phone or PDA be charged, not have the available awkward situation of electricity and solve to be away from home; Moreover, because being connected to lithium battery, mobile phone or PDA by a connecting line, the output of this direct current output circuit can charge, therefore avoid using a lot of different chargers, and reduce the trouble and inconvenience of carrying and using.

Below be to description of drawings of the present utility model:

Fig. 1 is a stereogram of the present utility model;

Fig. 2 is a circuit block diagram of the present utility model;

Fig. 3 is a circuit diagram of the present utility model.

At first, see also Fig. 1, Fig. 2, the utility model is the circuit board 2 that installing one has rectification circuit 21, DC circuit 22, control circuit 23, direct current output circuit 24 in a housing 1, and is referring now to Fig. 3 that the annexation and the effect division of each circuit is as follows:

Rectification circuit 21, it has an AC input 211 and connects alternating current, and this rectification circuit 21 is to convert alternating current to direct current;

DC circuit 22, it connects rectification circuit 21, with the output voltage of voltage stabilizing rectification circuit 21;

Control circuit 23, it connects rectification circuit 21 and DC circuit 22, this control circuit 23 has an integrated circuit U1, and this integrated circuit U1 is a power control switch circuit (POWERSWITCH), selects to be exported by the direct current of rectification circuit 21 or battery 221 in order to control; And pass through its DC input 223 connection at least one battery (alkaline batteries) 221 or grafting automobile cigarette lighter 222 to import as DC power supply;

Direct current output circuit 24, it connects control circuit 23, this direct current output circuit 24 has an integrated circuit U2, and integrated circuit U2 is the voltage regulator (DC TO DCCONVERTER) of the direct current that always circulates, and the different connecting line 241 of output 242 grafting of this direct current output circuit 24, and each connecting line 241 is connected with the resistance of different resistance values, makes each connecting line 241 must export different voltage, charges for lithium battery, mobile phone or PDA.

According to said structure, if will charge to lithium battery, mobile phone or PDA with alternating current, must select the corresponding connecting line 241 that uses respectively for use, and an end of connecting line 241 is plugged on the output 242 of direct current output circuit 24, and hold grafting lithium battery, mobile phone or PDA (not shown) in addition, so can charge with alternating current to lithium battery, mobile phone or PDA.

If be away from home, in the time of can't using alternating current to charge, get and buy battery (alkaline battery) 221 nearby, as the 9V battery, and battery 221 is connected the DC input 223 of the control circuit 23 of the circuit board 2 in the housing 1, make battery 221 connect control circuits 23, so can be under the situation of no alternating current, charging by 221 pairs of mobile phones of battery or PDA, being solved is away from home does not have electric available awkward situation.

Moreover, because being connected to lithium battery, mobile phone or PDA by a connecting line 241, the output 242 of this direct current output circuit 24 can charge, therefore avoid using a lot of different chargers, and reduce the trouble and inconvenience of carrying and using.

The AC input 211 of this rectification circuit 21 is one can be folded in the plug on housing 1 surface again, this plug is flipped out in use again, so can reduced volume so that carry.

Claims

1, a kind of AC/DC Portable Charger, comprise a rectification circuit, a DC circuit, a control circuit and a direct current output circuit, it is characterized in that, this rectification circuit has an alternating current input and connects AC power, and this rectification circuit is connected with the DC circuit of its output voltage of voltage stabilizing;

2, AC/DC Portable Charger as claimed in claim 1, it is characterized in that, the different connecting line of output grafting of this direct current output circuit, and each connecting line is connected with the resistance of different resistance values, and this direct current output circuit is connected on the device that needs charging by each connecting line.

3, AC/DC Portable Charger as claimed in claim 1 is characterized in that, this direct current input grafting automobile cigarette lighter is imported as DC power supply.

4, AC/DC Portable Charger as claimed in claim 1 or 2 is characterized in that, needing the device of charging is lithium battery, mobile phone or personal digital assistant.