KR20090118750A - Power apparatus and data tranmition apparaus comprising the same - Google Patents

Abstract

PURPOSE: A power supply unit and a data transfer apparatus including the same are provided to normally complete an operation by supplying the power through the relay switching unit and the secondary switching unit when the main switching unit is not operated. CONSTITUTION: The power supply unit comprises the power supply circuit part, the main switching unit, the relay switching unit, and the secondary switching unit. The power supply circuit part(150) converts the input power source and generates output power. The main switching unit(120) transfers the input power source to the power supply circuit part. The secondary switching unit(140) transfers the input power source delivered from the relay switching unit to the power supply circuit part.

Description

Power apparatus and data transmission apparatus including the same {Power apparatus and data tranmition apparaus comprising the same}

The present invention relates to a power supply for supplying power, and a data transmission for writing data to an external memory by receiving power from the power supply.

The digital camera takes a picture to generate an image file, and temporarily stores the image file in the internal memory to write data to the external memory or directly write the data to the external memory. In a digital camera, if the data writing operation is not performed properly, the photographed picture may be lost. When the data write operation is not performed properly, power may not be supplied during data writing, or the external memory may be dropped from the digital camera.

An object of the present invention is to provide a power supply device capable of stably supplying power to complete data writing to an external memory, and a data transmission device including the same.

The present invention provides a power circuit unit for converting input power to generate an output power, a main switching unit for transmitting the input power to the power circuit unit, a relay switching unit for transferring the input power when the main switching unit is not operated, and And an auxiliary switching unit configured to transfer the input power transferred from the relay switching unit to the power circuit unit.

In the power supply apparatus according to the present invention, the relay switching unit is a solid state relay (SSR), a photo coupler that emits light due to the voltage difference between both ends of the main switching unit, and the photo coupler is connected in parallel to the photo It is possible to include a phototransistor conducting by a control signal from the coupler.

In the power supply apparatus according to the present invention, the auxiliary switching unit is connected between the photo transistor and the power supply circuit unit.

The power supply apparatus according to the present invention may further include a power supply unit for providing the input power.

In the power supply apparatus according to the present invention, the main switching section is connected between the power supply section and the power supply circuit section.

In the power supply apparatus according to the present invention, the relay switching unit is connected between the power supply unit and the auxiliary switching unit.

In addition, the present invention provides a data transfer apparatus for writing data to an external memory, comprising: a power supply unit, a slot for supporting the external memory so as not to be detached from the data transfer apparatus, and a slot provided with output power from the power supply unit. A data transmission device including a driving unit for driving, a control unit for determining whether the slot is released while writing data to the external memory, and an alarm unit for outputting an alarm when the slot is released while writing data to the external memory. To provide.

In the data transmission device according to the present invention, the alarm unit may receive an output power from the power supply device to output an alarm.

The power supply apparatus according to the present invention can normally complete the operation by supplying power through the relay switching unit and the auxiliary switching unit when the main switching unit does not operate while receiving power from the power supply unit and performing a specific operation. have. In particular, in the case of the data transmission device including the power supply device, when the main switching unit does not operate during the data writing operation, the data writing operation may be normally completed according to the above principle.

In addition, the data transmission apparatus of the present invention for writing data to an external memory includes a slot having a locking function for supporting the external memory embedded therein, a driving unit for driving the slot, a controller for determining whether the external memory is dropped, and the An alarm unit is provided to output an alarm when an external memory is dropped, so that when the slot is released by accident during data writing, the controller detects the situation and the controller determines the situation and outputs an alarm. The accident that the external memory is dropped during writing can be prevented. Therefore, data writing can be completed.

The data transmission apparatus including the transmission apparatus according to the present invention will be described in detail with reference to FIG. 1.

1 is a block diagram showing a data transmission apparatus according to the present invention.

Referring to FIG. 1, the data transmission device includes a power supply device.

The power supply device may include a power supply unit 110, a main switching unit 120, a relay switching unit 130, an auxiliary switching unit 140, and a power supply circuit unit 150.

The power supply unit 110 supplies input power.

The main switching unit 120 transfers input power from the power supply unit 110 to the power supply circuit unit 150 while the power supply device is operating. The main switching unit 120 may include a switch element such as a transistor connected in series with the power supply unit 110.

The relay switching unit 130 may include a switch element that operates when a voltage difference occurs at both ends of the main switching unit 120, that is, when the main switching unit 120 does not conduct. Specifically, the relay switching unit 130 may be a solid state relay (SSR). Solid-state relays without mechanical contact structures are fully solid-state electronic relays in which switching is carried out in a resin-molded state on the case using semiconductor devices. The contactless relay has higher reliability, longer life, and faster switching than a magnetic relay. The relay switching unit 130 may be a contactless relay, and may include a photo coupler connected to both ends of the main switching unit 120 and a photo transistor controlled by the photo coupler. The photo transistor may be disposed to face the photo coupler in parallel so as to easily receive the light of the photo coupler.

The auxiliary switching unit 140 transmits the input power transferred through the relay switching unit 130 to the power circuit unit 150. The auxiliary switching unit 140 includes a switch element such as a transistor connected between the relay switching unit 130 and the power circuit unit 150. In more detail, the auxiliary switching unit 140 may be connected between the photo transistor of the relay switching unit 130 and the power circuit unit 150.

The power supply circuit unit 150 boosts the input power provided from the power supply unit 110 or performs other predetermined conversion to generate output power, and provides the output power to components that perform a predetermined operation. The power circuit unit 150 may receive input power through the main switching unit 120, and the power circuit unit 150 may include a converter. When the main switching unit 120 does not operate, input power may be provided through the relay switching unit 130 and the auxiliary switching unit 140. Accordingly, the main switching unit 120, the relay switching unit 130, and the auxiliary switching unit 140 connected between the power supply unit 110 and the power supply circuit unit 150 may be arranged in parallel with each other.

The switching units 120, 130, and 140 may further include various elements for effectively performing a switching operation in addition to the switch elements. For example, it may further include a diode or the like for preventing conduction in the reverse direction.

The data transmission device according to the present invention may receive output power from the power supply device as described above. In detail, the output power may be supplied to the controller 200, the driver 325 driving the slot 320, the internal memory 400, the alarm unit 500, and the like through the power line PL.

The data transmission apparatus according to the present invention is an external memory 600 connected thereto and transmits data stored in the internal memory 400 to the external memory 600, and may be a digital camera, a computer, a display device, or the like. That is, the data transmission device according to the present invention can be applied to any digital device to which an external memory is connected.

The data transmission device may perform a corresponding operation when output power is supplied to each component through a power line PL. When the user inputs a POWER ON control signal through the operation unit 600, the control signal is transmitted to the main switching unit 120 through the control unit 200 to conduct the main switching unit 120. Therefore, the input power from the power supply unit 110 is transmitted to the power circuit unit 150, the output power from the power circuit unit 150 is supplied to each component to turn on the power of the data transmission device.

The external memory 600 is inserted into the data transmission device, and the slot 320 is locked. Therefore, the slot 300 supports the external memory 600 not to fall off from the data transmission device. The slot 320 may be operated by the driving unit 325. When the driver 325 inputs the slot lock control signal through the operator 600, the control signal is input to the driver 325 through the controller 200, and the driver 325 is the slot 325. It can be locked by changing its position.

The external memory 600 is connected to the interface 310 of the data transmission device. The data from the internal memory 400 is written to the external memory 600 through the interface 310. When the user inputs a control signal for executing the data writing mode through the manipulation unit 600, data is written into the external memory 600 through the data line DL by the control signal. That is, data temporarily stored in the internal memory 400 is written to the external memory 600 through the data line DL and the interface 310.

When the main switching unit 120 of the power supply device does not operate during the data writing operation, that is, when the main switching unit 120 is not conducting and a voltage difference occurs at both ends, the photo coupler of the relay switching unit 130. Emits light and receives light generated from the photocoupler in the phototransistor. Therefore, the relay switching 130 is conductive, and may transmit input power to the power circuit unit 150 through the auxiliary switching unit 140. The auxiliary switching unit 140 may be activated by the controller 200 when the data writing mode is executed. Therefore, when the main switching unit 120 does not operate accidentally during data writing, the relay switching unit 130 is quickly switched and stably supplied with power, thereby completing data writing.

In addition, when the slot 320 is unlocked during the data writing operation (UNLOCK), the UNLOCK of the slot 320 is detected through the driving unit 325, and the control unit 200 outputs an alarm from the alarm unit 500. Can be. Accordingly, the user may recognize the slot 320 being released and lock again to prevent the external memory 600 from falling out during data writing. That is, the data writing operation can be normally and completely performed.

2 and 3 are flowcharts for explaining the operation of the data transmission apparatus according to the present invention.

First, referring to FIG. 2, the main switching unit is turned on to turn on the data power supply (S11).

The data write mode is executed to perform data write initialization. The data write mode can be executed by the user or can be set to default by powering on the data power supply. The data write initialization may include activating the auxiliary switching unit, inserting an external memory to lock the slot, and activating an alarm (S12).

After the data write initialization operation, data write is executed (S13).

During the data writing, it is determined whether the main switching unit does not operate (S14).

When the main switching unit operates normally, it is determined whether data writing is completed (S15). If data writing is not completed, data is continuously written (S13). If data writing is completed, the auxiliary switching unit is turned OFF, the slot is also unlocked, and the alarm is terminated (S18). After the data writing is completed, the operation of the auxiliary switching unit, the alarm, the slot, and the like is automatically terminated, thereby preventing power wastage.

When the main switching unit does not operate, the relay switching unit is turned on (S16). Therefore, power is normally supplied and data writing operation can be continuously performed.

Then, it is determined whether data writing is completed (S17).

If data writing is not completed, data writing is continued (S13). When data writing is completed, the auxiliary switching unit is turned off (OFF), the slot is also unlocked, and the alarm ends (S18).

Another operation method of the data power supply device of the present invention will be described with reference to FIG. 3.

First, power is supplied through the main switching unit (S21).

The data write mode is executed to initialize data write (S22). The data write initialization may include activating the auxiliary switching unit, inserting an external memory to lock the slot, and activating an alarm.

After data write initialization, data writing is executed (S23).

It is determined whether the slot lock state is released during data writing (S24).

If the slot is not released, it is determined whether data writing is completed (S25). If data writing is not completed, data is continuously written (S23). When data writing is completed, the auxiliary switching unit is turned off (OFF), the slot is also unlocked, and the alarm ends (S29). Even when the slot is released, it is determined whether data writing is completed (S26).

If data writing is not completed, an alarm is output (S27), and the slot is locked again (S28). The slot may be locked by the user or may be automatically locked. After the slot is locked, data writing is performed again (S23).

When data writing is completed, the auxiliary switching unit is turned off (OFF), the slot is also unlocked, and the alarm ends (S29). In this case, when the slot is unlocked in S24 and data writing is completed in S26, the operation of releasing the slot lock may not be performed.

Although the above is limited to the preferred embodiment of the present invention, the present invention is not limited thereto, and various changes, modifications, and equivalents may be used. Therefore, the present invention can be applied to modify these embodiments as appropriate, it will be natural that such applications also fall within the scope of the present invention based on the technical idea described in the claims.

1 is a block diagram illustrating a data transmission apparatus according to an embodiment of the present invention.

2 is a flowchart illustrating an operation of a data transmission apparatus according to an embodiment of the present invention.

3 is a flowchart illustrating an operation of a data transmission apparatus according to another embodiment of the present invention.

Claims (8)

A power supply circuit unit configured to convert an input power to generate an output power; A main switching unit for transmitting the input power to the power circuit; A relay switching unit transferring the input power when the main switching unit is not operated; And And an auxiliary switching unit configured to transfer the input power transferred from the relay switching unit to the power circuit unit. The method of claim 1, wherein the relay switching unit is a photo coupler for emitting light by the voltage difference between the both ends of the main switching unit, And a photo transistor connected in parallel with the photo coupler and conducting by a control signal from the photo coupler. The power supply device of claim 2, wherein the auxiliary switching unit is connected between the photo transistor and the power circuit unit. The power supply apparatus of claim 1, further comprising a power supply unit configured to provide the input power. The power supply apparatus of claim 4, wherein the main switching unit is connected between the power supply unit and the power supply circuit unit. The power supply device according to claim 4, wherein the relay switching unit is connected between the power supply unit and the auxiliary switching unit. In a data transfer device for writing data to an external memory, A power supply device according to any one of claims 1 to 4; A slot supporting the external memory so as not to be detached from the data transmission device; A driving unit receiving an output power from the power supply unit to drive a slot; A controller for determining whether the slot is released while writing data to the external memory; And And an alarm unit for outputting an alarm when the slot is released while writing data to the external memory. The data transmission device of claim 7, wherein the alarm unit outputs an alarm by receiving output power from the power supply device.

Images