CN2410806Y

CN2410806Y - Mobile telephone charger with multiple input power supply

Info

Publication number: CN2410806Y
Application number: CN 99255340
Authority: CN
Inventors: 杨博曾
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-12-02
Filing date: 1999-12-02
Publication date: 2000-12-13
Anticipated expiration: 2009-12-02

Abstract

The utility model relates to a mobile telephone charger with a multiple input power supply, which comprises a power supply input device, a direct current voltage changing circuit, a USB interface socket, a power supply select switch, a voltage changing IC. The power supply input device changes urban electricity into the voltage which is the same as the automobile power supply through an alternating current transformer or the automobile power supply is directly used. The direct current voltage changing circuit changes the automobile voltage into the voltage which is the same as the USB interface, the power supply the USB interface on the computer or on the circumference of the computer is taken out through the USB interface socket. The voltage changing IC changes the power supply voltage of the USB interface to the charging voltage of a cell of a mobile telephone. The utility model can reach the purpose of various power input.

Description

The charger for mobile phone of the multiple input power supply of tool

The utility model relates to a kind of charger, relates in particular to the charger for mobile phone of the multiple input power supply of a kind of tool.

The utilization rate of mobile phone is quite universal at present, and almost staff is one, and the charging device of mobile phone comprises: trip fills, seat fills and car fills three kinds.But this its employed power supply of three kinds of charging devices is neither identical, and trip fills and do not need cradle, can directly charge on mobile phone, but problem such as can't use can cause mobile phone to cause fault and charging easily the time.So most people uses cradle to charge.

Yet the size shape of its battery of mobile phone between various labels is also inequality, and its charging voltage is also inequality, causes the battery between different labels even can not use identical cradle to charge with the battery of machine.Cradle all can only connect the AC110V/220V AC power as another, can not be connected on the automobile power source, also must add an automobile-used adapter as if charging and just can use on automobile.

Computer equipment is seen everywhere now, and most popular on computers at present interface is universal serial bus USB interface, and the advantage of USB interface is that extendibility is good, so on the peripheral product of many support USB interfaces, all can see the socket of USB interface, if can utilize the advantage of computer USB interface, power supply on the acquisition USB interface is supplied with the power supply of mobile telephone charger holder, and the charging that makes mobile phone is convenient many.

The utility model is is promptly researched and developed at the shortcoming of above-mentioned mobile telephone charger holder, and through constantly improvement, designs the mobile telephone charger holder of the multiple input power supply of the utility model tool finally.

Main purpose of the present utility model is, the charger for mobile phone of the multiple input power supply of a kind of tool is provided, and promptly is to supply with the usefulness of battery of mobile telephone charging at the power supply that adds USB interface on a USB interface jockey and power supply change-over device are with the acquisition computer on the mobile telephone charger holder.

A time purpose of the present utility model is, the charger for mobile phone of the multiple input power supply of a kind of tool is provided, and makes this cradle can use the AC110V/220V AC power of general family expenses, supplies with the usefulness of battery of mobile telephone charging.

A purpose more of the present utility model is, the charger for mobile phone of the multiple input power supply of a kind of tool is provided, and makes this cradle can use automobile power source, supplies with the battery of mobile telephone charging.

Another purpose of the present utility model is, the charger for mobile phone of the multiple input power supply of a kind of tool is provided, and makes its charging voltage that can judge variety classes battery and different label batteries automatically, is transformed into the charging voltage that can cooperatively interact and uses.

The purpose of this utility model is realized by following technical scheme.

The charger for mobile phone of the multiple input power supply of a kind of tool, it is characterized in that, comprise power supply input unit, DC voltage converting circuit, USB interface socket, power selection switch, voltage transitions IC, described power supply input unit is by AC transformer civil power to be converted to the voltage identical with automobile power source or directly uses automobile power source; Described DC voltage converting circuit becomes the voltage identical with the USB interface with the automobile voltage transitions; Described USB interface socket is to be used for the power supply on the USB interface on computer or the computer peripheral is taken out; Described power selection switch is to be used for selecting to use automobile power source or USB interface power supply; Described voltage transitions IC is the charging voltage that the supply voltage of USB interface is converted to battery of mobile telephone; Earlier with the voltage of general city piezoelectric transformer and automobile power source through DC voltage converting circuit, convert to+5V voltage, with identical with USB interface voltage, become the employed voltage of battery of mobile telephone as charging usefulness through a voltage transitions IC changing voltage again, reach the purpose of multiple power supply input.

The purpose of this utility model can also further realize by following technical measures.

The charger for mobile phone of the multiple input power supply of aforesaid tool, it is to utilize USB interface joint as switch that this power supply is selected switch, and when USB interface plug was plugged, mains supply and automobile power source promptly were cut off, when USB interface plug was not inserted, mains supply and automobile power source were just understood conducting.

For further understanding technology contents of the present utility model, characteristics and effect, exemplify following preferred embodiment now, and conjunction with figs. is described in detail as follows:

Fig. 1 is the circuit box schematic diagram of the charger for mobile phone of the multiple input power supply of the utility model tool.

Fig. 2 is the embodiment circuit diagram of the charger for mobile phone of the multiple input power supply of the utility model tool.

See also shown in Figure 1ly, be the circuit block diagram of the charger for mobile phone that the utlity model has multiple input power supply.As shown in the figure, the utlity model has the identical power transformer of general cradle, AC110V/220V converts DC+12V to civil power, and is identical with vehicle power supply voltage, so can be compatible with automobile power source, can use the power supply (1) of automobile.The utility model can take out (2) with the power supply on the USB interface socket on the computer or on the computer peripheral in addition, through a power selection switch (3), the practice of the utility model embodiment is to utilize USB interface joint as switch, when plugging USB interface plug, mains supply and automobile power source promptly are cut off; When not inserting USB interface plug, mains supply and automobile power source are just understood conducting.

The utility model embodiment at first with the DC+12V voltage of general city piezoelectric transformer and automobile power source through DC voltage converting circuit (4) (MC34063), convert to+5V voltage, with identical with USB interface voltage, reach the purpose compatible with the USB interface, (DP9902P-16) voltage transitions is become the employed voltage of battery of mobile telephone through a voltage transitions IC (5) again, again by different battery charge pins contact with battery (6) for charging usefulness.

As everyone knows, the employed power supply of USB interface on the general computer is+the 5V direct voltage maximum current 0.5A.And the employed mobile phone voltage of each label and inequality, the employed charging voltage of the mobile phone of GSM MOTORALStart-Tack is direct current 5.8V for instance, and the employed charging voltage of the mobile phone of NOKIA 6150 is direct current 8V, cooperates so the utility model must be adjusted different voltage at the mobile phone of different label types.

See also Fig. 2 institute method, be the embodiment circuit diagram of the charger for mobile phone of the multiple input power supply of the utility model tool.As shown in the figure, the utility model uses the compatible plug of USB (11), the utility model can be connected on the socket of any use USB interface, it is to utilize a voltage transitions IC (12) (DP9902P-16), with the USB interface+the 5V voltage transitions becomes that mobile phone uses+5.8V or+different voltages such as 8V, adjust variable resistor R1 (13) (metal skin film resistance 1/4W 1%) and R2 (14) (metal skin film resistance 1/4W 1%) and can change over different voltage to cooperate the mobile phone of various label.

The utility model embodiment also can be identical with general cradle, use the power supply of AC110V/220V AC transformer and automobile cigarette lighter, the utility model embodiment's is to convert civil power to DC+12V (16) through transformer earlier, so promptly the voltage DC+12V with automobile cigarette lighter is identical, and can use identical circuit, (MC34063) convert DC+12V to DC+5V through a direct current voltage conversion circuit (17) again, again can be identical with the voltage of USB interface, and use identical circuit.The other design of the utility model can be detected the kind of battery, and as lithium (Li) battery or nickel (Ni-MH) battery, and the situation that can detect the battery there is electric power or not shows charge condition with driving display (15).The utility model is charged after can judging the battery variety label automatically, so just need not buy different chargers at the battery of different brands.

In sum, the utility model has plurality of advantages in the use, and overcomes the shortcoming of commonly using the product existence, has novelty, creativeness, practicality, meets the legal important document of patent application, so propose novel patent application in accordance with the law.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.

Claims

1, the charger for mobile phone of the multiple input power supply of a kind of tool is characterized in that, comprises power supply input unit, DC voltage converting circuit, universal serial bus USB interface socket, power selection switch, voltage transitions IC,

Described power supply input unit is by AC transformer civil power to be converted to the voltage identical with automobile power source or directly uses automobile power source;

Described DC voltage converting circuit becomes the voltage identical with the USB interface with the automobile voltage transitions;

Described USB interface socket is to be used for the power supply on the USB interface on computer or the computer peripheral is taken out;

Described power selection switch is to be used for selecting to use automobile power source or USB interface power supply;

Described voltage transitions IC is the charging voltage that the supply voltage of USB interface is converted to battery of mobile telephone;

Earlier with the voltage of general city piezoelectric transformer and automobile power source through DC voltage converting circuit, convert to+5V voltage, with identical with USB interface voltage, become the employed voltage of battery of mobile telephone as charging usefulness through a voltage transitions IC changing voltage again, reach the purpose of multiple power supply input.

2, the charger for mobile phone of the multiple input power supply of tool according to claim 1, it is characterized in that, it is to utilize USB interface joint as switch that described power supply is selected switch, when USB interface plug is plugged, mains supply and automobile power source promptly are cut off, when USB interface plug was not inserted, mains supply and automobile power source were just understood conducting.