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Mobile Phone Patent Abstract
This invention relates to a Mobile phone battery charger with USB
interface which is composed of a compatible plug, an DC converter
and a Mobile phone battery charging plug. The compatible plug can
be inserted into the USB interface socket of computer or any environmental
equipment so as to get electric power from computer, furthermore,
the DC converter can convert computer USB interface into necessary
charging voltage and transmit to different type Mobile phone by
means of the Mobile phone battery charging plug for charging Mobile
phone battery. In addition, the Mobile phone battery charger with
USB interface also can be connected to various Mobile phone battery
charging seat for charging.
Mobile Phone Patent Claims
What is claimed is:
1. A Mobile phone battery charger with USB interface which comprising:
a compatible plug which can be inserted into the USB interface
socket of computer or environmental equipment;
an DC converter which can convert computer USB interface voltage
into demanded charging voltage and transmit to the Mobile phone
battery;
a Mobile phone battery charging plug which can be inserted into
the Mobile phone power connector;
the above Mobile phone battery charger with USB interface characterized
in that; the Mobile phone battery charger with USB interface can
get electric power from computer USB interface and convert into
necessary charging voltage for different Mobile phone type by means
of said DC converter.
2. A Mobile phone battery charger with USB interface as claimed
in claim 1, wherein said DC converter can convert computer USB interface
voltage into demanded voltage and transmit to different type of
Mobile phone battery charging seat for charging Mobile phone battery.
Mobile Phone Patent Description
BACKGROUND OF THE INVENTION
(1) Field of the Invention
This invention relates to a Mobile phone battery charger with USB
(Universal Serial Bus) interface, especially an USB interface which
can get electric power from computer USB interface.
(2) Description of the Prior Art
The conventional Mobile phone battery charger can be classified
into battery seat charger and car charger and travel charger, but
such kind of Mobile phone battery charger cannot suit for the charging
voltage of any kind Mobile phone battery, furthermore, it is very
inconveniently for user to carry the conventional Mobile phone battery
charger.
The USB (Universal Serial Bus) interface is used widely on computer
for connecting other environmental equipments, furthermore, the
USB interface can be extended to use on many computer environmental
equipments for connecting with each other. If we install the USB
interface on the Mobile phone battery charger, the Mobile phone
battery charger can get electric power from the computer USB interface
for charging Mobile phone battery.
SUMMARY OF THE INVENTION
It is therefore the main object of this invention to provide a
Mobile phone battery charger with USB interface, the USB interface
of battery charger can switch to computer and get electric power
from the computer for charging the Mobile phone battery charger.
BRIEF DESCRIPTION OF THE DRAWINGS
In the drawings, which illustrate the preferred embodiments and
modes of operation, and in which like reference characters designate
the same or similar parts throughout the several views:
FIG. 1 is a flow chart showing the operation process of the Mobile
phone battery charger with USB interface converting computer electric
power to the Mobile phone power connector;
FIG. 2 is a circuit diagram showing the circuit of FIG. 1;
FIG. 3 is a flow chart showing the operation process of the Mobile
phone battery charger with USB interface converting electric power
to the Mobile phone battery charging seat: and
FIG. 4 is a circuit diagram showing the circuit of FIG. 3.
DETAILED DESCRIPTION OF THE EMBODIMENT
Referring to FIG. 1, the present invention relates to a Mobile
phone battery charger with USB interface, the USB interface of this
Mobile phone battery charger can be connected to the computer USB
interface power connector (1) for transmitting electric power from
computer to the Mobile phone battery power connector. The Mobile
phone battery charger have an DC converter (2) formed therein, the
DC converter (2) can convert computer voltage into demanded voltage
for Mobile phone and transmit the voltage to Mobile phone power
connector(3) for charging the Mobile phone battery and Mobile phone
using. It is well known by those skilled in the art, the voltage
of computer USB interface power is+5V, the maximum current is 0.5
A. The charging voltage is different for different type of Mobile
phone. The present Mobile phone battery charger can regulate the
voltage transmitted from computer according to the type of Mobile
phone by means of the DC converter (2).
The FIG. 2 shows the circuit diagram of this invention, the Mobile
phone battery charger (1) having an USB interface compatible plug
(11), the compatible plug (11) can be connected to ant computer
or environmental equipment having USB interface socket, furthermore,
the Mobile phone battery charger (1) with USB interface having a
converter (2) in which have a converting ICE (12), the converting
IC (12) can convert the voltage transmitted from computer into the
demanded charging voltage for different type of Mobile phone. The
variable resistance R1 (13) and R2 (14) can be changed according
to different type of Mobile phone, the resistance R3 (15) being
used for protecting the circuit diagram of USB interface from shorting.
Meanwhile, the USB compatible plug can connect to different types
of the Mobile phone power connector (16) to adapt different product
of the Mobile phone.
FIG. 3 and FIG. 4 shows the Mobile phone battery charger with USB
interface converting computer electric power to the Mobile phone
battery charging seat. The circuit diagram in FIG. 3 is similar
to the circuit diagram in FIG. 1, therefor it merely convert the
desired voltage to the Mobile phone battery charging seat connector
(4) for charging the Mobile phone battery. But the circuit diagram
is more complex because the Mobile phone battery charging seat would
detect the type of Mobile phone battery (such as Li battery or Ni-MH
battery) firstly, then detect the quantity of electricity of the
Mobile phone battery. In general, the Mobile phone battery charging
seat have an Ac to DC converter or transformer which can convert
house-service voltage AC 110V or 220V or others into lower DC voltage,
then transforming to necessary charging voltage for different Mobile
phone battery. The present Mobile phone battery charging seat is
designed to detect automatically the type of Mobile phone battery
and convert the voltage from the USB interface into desired voltage
for charging the Mobile phone battery by means of converting IC
in the converter thus the user dose not need to purchase different
kinds of the battery charging seat as to the different material
made f the batteries.
Accordingly, the present invention has following advantages:
(1) The Mobile phone battery charger with USB interface have smaller
volume because it does not install any AC to DC converter or transformer.
(2) The Mobile phone battery charger with USB interface can be
switched to any computer or environmental equipment having USB interface
for charging without utilizing the AC 110V or 220V power or others.
(3) The Mobile phone battery charger with USB interface can be
connected to different Mobile phone power connector directly for
charging phone battery.
(4) The Mobile phone battery charger with USB interface can be
connected to different Mobile phone battery charging seat for charging
Mobile phone battery.
(5) The Mobile phone battery charger with USB interface have a
simple circuit which can prevent user from shocking. |