Radio Shack 43-222B Manual de usuario descargar pdf (Pagina 17)

US

8,212,386

B2

5

VDC

(or

14-17

VDC)

for

a

?rst

connector,

and

about

18-20

VDC

(or

17-21

VDC)

for

a

second

connector.

Unlike

conventional

universal

poWer

supplies,

in

this

embodiment

of

the

invention,

the

connectable

connector

does

not

have

an

electrical

component

that

provides

feedback

to

a

poWer

circuit

to

cause

the

poWer

circuit

to

generate

a

speci?c

voltage.

Rather,

in

this

embodiment

of

the

invention,

the

voltages

are

alWays

available

and

the

voltage

output

that

is

ultimately

provided

by

the

poWer

supply

system

depends

on

the

connectable

connector

that

is

connected

to

the

output

connector

that

is

coupled

to

the

poWer

circuit.

If

the

connectable

connectors

in

the

poWer

supply

system

are

connector

tips,

each

connector

tip

can

act

as

a

jumper

to

different

sets

of

contacts

in

the

output

connector

to

output

the

correct

voltage.

For

example,

the

output

connector

can

have

a

plurality

of

electrical

contacts

including

contacts

A,

B,

and

C.

The

?rst

connector

tip

may

have

contacts

that

connect

to

a

?rst

set

of

contacts

A

and

B

in

the

output

connector

to

produce

a

?rst

output

voltage

associated

With

a

?rst

electronic

device.

A

second

connector

tip

may

have

contacts

that

connect

to

a

second

set

of

contacts

A

and

C

in

the

output

connector

to

produce

a

second

output

voltage

associated

With

a

second

electronic

device.

Although

tWo

connector

tips

and

three

elec

trical

contacts

in

an

output

connector

are

described

in

detail,

more

than

tWo

connector

tips

and

more

than

three

electrical

contacts

in

an

output

connector

can

be

used

in

other

embodi

ments

of

the

invention.

FIG.

1(a)

shoWs

a

poWer

supply

system

100

according

to

an

embodiment

of

the

invention.

The

poWer

supply

system

100

includes

a

poWer

adapter

10

including

a

casing

(e.g.,

a

plastic

casing)

10(a)

and

an

optional

auxiliary

connector

port

10(b)

in

the

casing.

A

Wire

28

(or

cable)

couples

an

output

connector

30

to

the

poWer

adapter

10.

The

poWer

adapter

10

may

include

poWer

supply

components

and/or

poWer

circuit

components

including

transformers,

recti?ers,

inverters,

etc.

Another

Wire

24

couples

an

input

connector

20

to

the

poWer

adapter

10.

The

input

connector

20

may

be

a

household

plug

that

plugs

into

an

AC

poWer

source.

Alternatively,

the

input

connector

20

may

be

a

plug

(e.g.,

a

cigarette

lighter

plug)

that

plugs

into

a

DC

poWer

source.

The

poWer

supply

system

100

may

also

include

a

?rst

connector

32,

Which

may

be

in

the

form

of

connector

tip.

The

connector

32

may

include

a

body

portion

32(a)

that

is

con

?gured

to

mate

With

the

output

connector

30,

and

a

mating

portion

32(b)

Which

mates

With

a port

of

a

?rst

electronic

device

(not

shoWn).

The

?rst

connector

32

may

also

have

electrical

contacts

that

electrically

couple

to

only

a

certain

set

of

electrical

contacts

(e. g.,

contacts

A

and

B)

in

a

plurality

of

contacts

(e.g.,

contacts

A,

B,

and

C)

in

the

output

connector

30.

The

poWer

supply

system

100

may

also

include

a

second

connector

33,

Which

may

be

in

the

form

of

connector

tip.

The

second

connector

33

may

include

a

body

portion

33(a)

that

is

con?gured

to

mate

With

the

output

connector

3 0

When

the

?rst

connector

32

is

not

used.

The

second

connector

33

may

also

include

a

mating

portion

33(b)

Which

mates

With

a port

of

a

second

electronic

device

(not

shoWn).

The

second

connector

33

may

also

have

electrical

contacts

that

electrically

couple

to

only

a

certain

set

of

electrical

contacts

(e.g.,

contacts

A

and

C)

in

a

plurality

of

contacts

(e.g.,

contacts

A,

B,

and

C)

in

the

output

connector

30.

In

FIG.

1(a),

the

mating

portions

32(1)),

33(1))

of

the

respec

tive

connectors

32,

33

may

have

different

form

factors

as

they

are

used

With

different

port

con?gurations

on

different

elec

tronic

devices.

HoWever,

the

body

portions

32(a),

33(a)

of

the

respective

connectors

32,

33

may

have

the

same

form

factors

as

they

are

capable

of

connecting

to

the

same

output

connec

20

25

30

35

40

45

50

55

60

65

6

tor

30

(this

is

also

applicable

to

later

described

embodiments).

The

body

portions

32(a),

33(a)

including

different

sets

of

contacts

Which

Will

electrically

couple

to

corresponding

sets

of

contacts

in

the

output

connector

30.

In

embodiments

of

the

invention,

some

members

of

the

sets

may

be

the

same

in

some

cases,

but

the

sets

are

different.

For

example,

if

the

output

connector

30

has

contacts

A,

B,

and

C,

then

a

?rst

connector

may

have

corresponding

connectors

A

and

B,

While

a

second

connector

may

have

corresponding

contacts

A

and

C.

In

this

example,

the

sets

of

contacts

(i.e.,

A-B,

and

A-C)

are

differ

ent,

yet

they

have

one

common

member

A.

In

other

embodi

ments,

it

is

not

necessary

for

the

sets

to

have

at

least

one

common

member.

FIG.

1(b)

shoWs

an

auxiliary

connection

device

50,

Which

includes

an

auxiliary

connector

52

including

a

body

portion

52(a)

and

a

mating

portion

52(1)).

The

mating

portion

52(b)

can be

a

plug

Which

can

plug

into

the

auxiliary

connector

port

10(b)

in

the

poWer

adapter

10

shoWn

in

FIG.

1(a).

Another

connector

54

including

a

body

portion

54(a)

and

a

connector

portion

54(b)

may

be

coupled

to

the

auxiliary

connector

52

via a

Wire

58.

The

auxiliary

connection

device

50

can

provide

loW

voltages

to

loW

voltages

devices

such

as

cell

phones,

While

the

connectors

32,

33

shoWn

in

FIG.

1(a)

can

provide

higher

voltages

to

higher

voltage

devices

such

as

notebook

computers.

FIG.

2(a)

shoWs

a

connector

60

in

the

form

of

a

connector

tip.

The

connector

60

includes

a

body

portion

60(a)

compris

ing

plastic

and

a

mating

portion

60(b)

comprising

electrical

contacts.

FIG.

2(b)

shoWs

a

?rst

connector

including

electrical

con

tacts

60(c),

60(d),

Which

Would

connect

to

corresponding

contacts

in

an

output

connector

(not

shoWn)

to

provide

a

?rst

output

voltage.

FIG.

2(c)

shoWs

a

second

connector

including

electrical

contacts

60(0)

and

60(e),

Which

Would

connect

to

correspond

ing

contacts

in

an

output

connector

(not

shoWn)

to

provide

a

second

output

voltage.

FIGS.

3(a)

and

3(b)

shoW

end

vieWs of

the

connectors

shoWn

in

FIGS.

2(b)

and

2(0).

Other

embodiments

of

the

invention

are

also

possible.

For

example,

instead

of

a

connector

tip

being

detachable

from

an

output

connector

coupled

to

a

cable,

the

cable

can

be

com

pletely

detachable

from

an

adapter

body

(e.g.,

the

“brick”)

and

the

connector

tip

may

be

a

permanent

part

of

the

cable.

The

connector

betWeen

the

cable

and

adapter

body

uses

the

method

described

above

to

output

one

of

the

available

volt

ages

from

a

single

output

connector.

In

another

embodiment,

the

adapter

body

can

provide

output

voltage

contacts

that

are

covered

by

a

slide,

such

that

the

user

Would

have

to

move

the

slide

to

one

side

to

expose

either

the

16

VDC

or

19

VDC

contact

in

the

output

connector.

By

selecting

one

contact,

the

other

is

rendered

useless

by

the

slide

Which

covers

the

unse

lected

contact.

The

poWer

supply

system

described

above

can

be

used

in

any

suitable

manner.

For

example,

a

user

may

?rst

obtain

the

above-described

poWer

supply

system.

Then,

the

user

may

look

on

a

chart

or

the

like

(an

example

of

a

chart

is

provided

beloW),

to

match

his

?rst

electronic

device

(e.g.,

a

notebook

computer)

to

a

?rst

connectable

connector

(e.g.,

a

connector

tip).

The

consumer

may

thereafter

connect

the

?rst

connect

able

connector

to

the

output

connector

coupled

to

the

above

described

poWer

circuit.

The

connected

?rst

connector

Will

then

output

a

speci?c

voltage

(e.g.,

16

VDC),

even

though

the

poWer

circuit

in

the

poWer

adapter

and

the

output

connector

coupled

to

the

poWer

circuit

are

outputting

a

plurality

of

voltages.

If

the

consumer

has

a

second

electronic

device

that

operates

at

a

different

voltage

than

the

?rst

electronic

device,

then

the

user

may

detach

the

?rst

connector

from

the

output

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