# US 2014/0153197 A1 · Power supply device

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- Number: US 2014/0153197 A1
- Document ID: US20140153197A1
- Status: Published application
- Kind: A1
- Application number: 14/083,471
- Filed: 2013-11-19
- Published: 2014-06-05
- Earliest claimed: 2012-12-03
- Assignees: Hon Hai Precision Industry Co., Ltd.
- Applicants: Hon Hai Precision Industry Co., Ltd.
- Inventors: CHIEN-CHUNG YEN
- Web page: https://patentgrep.com/patent/US20140153197A1

## CPC

- H05K 5/30: Side-by-side or stacked arrangements
- H05K 7/14324: {comprising modular units, e.g. DIN rail mounted units}
- H02M 1/007: {Plural converter units in cascade (push-pull DC/DC converters with pre-regulator H02M3/3374; DC-AC converters following a DC-DC stage including a high frequency transformer H02M7/4807; DC-AC converters following a DC-DC conversion stage generating periodically varying voltages H02M7/4826)}
- H02M 3/003: {Constructional details, e.g. physical layout, assembly, wiring or busbar connections}
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H02M: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF (transformers H01F; dynamo-electric converters H02K47/00; controlling transformers, reactors or choke coils, control or regulation of electric motors, generators or dynamo-electric converters H02P)

## Abstract

A power supply device includes a first power conversion unit and a second power conversion unit. The first power conversion unit includes a first interface and a second interface. The second power conversion unit includes a third interface and a fourth interface. The third interface is configured to detachably connect to the second interface. When the third interface is connected to the second interface, the first power conversion unit and the second power conversion unit are electrically connected with each other. When third interface is disconnected from the second interface, the first power conversion unit and the second power conversion unit are detached from each other.

## Claims

### Claim 1

A power supply device, comprising;
a first power conversion unit comprising a first interface and a second interface, the first interface configured to connect to an external alternating current (AC) power source to receive AC power from the external AC power source, the first power conversion unit converting the received AC power into a first direct current (DC) power and outputting the first DC power via the second interface; and
a second power conversion unit detachably connected to the first power conversion unit comprising a third interface and a fourth interface, the third interface configured to connect to the second interface, the second power conversion unit converting the first DC power into at least one second DC power and outputting the at least one second DC power via the fourth interface to power external electrical devices using the at least one second DC power;
wherein when the third interface is connected to the second interface, the first power conversion unit and the second power conversion unit are electrically connected with each other; when third interface is disconnected from the second interface, the first power conversion unit and the second power conversion unit are detached from each other.

### Claim 2 (depends on 1)

The power supply device according to claim 1, wherein the second interface comprises an edge connector having a plurality of conductive pins.

### Claim 3 (depends on 2)

The power supply device according to claim 2, wherein the third interface comprises a plurality of hole-shaped conductive ports, and the plurality of conductive pins of the second interface are plugged into the hole-shaped conductive ports to connect the third interface to the second interface, thereby establishing an electrical connection between the first power conversion unit and the second power conversion unit.

### Claim 4 (depends on 1)

The power supply device according to claim 1, wherein the first power conversion unit further comprises a power factor correction (PFC) circuit to provide a PFC function for the power supply device.

### Claim 5 (depends on 1)

The power supply device according to claim 1, wherein the second power conversion unit is a DC to DC boost circuit.

### Claim 6 (depends on 1)

The power supply device according to claim 1, wherein the second power conversion unit is a DC to DC buck circuit.

### Claim 7 (depends on 1)

The power supply device according to claim 1, wherein the second power conversion unit is a circuit having a DC to DC boost circuit and a DC to DC buck circuit.

### Claim 8 (depends on 1)

The power supply device according to claim 1, wherein the AC power received from the external AC power source has a voltage of 220V or 110V.

### Claim 9 (depends on 1)

The power supply device according to claim 1, wherein the first DC power has a voltage of 24V or 48V.

### Claim 10 (depends on 1)

The power supply device according to claim 1, wherein the second DC power has a voltage of 3V, 5V, 12V, or 24V.