KR101416794B1 - Mobile devices rechargeable power supply device - Google Patents

Abstract

The present invention relates to a power supply for stabilizing and powering off a power saving type power supply for charging a portable device, which eliminates a high frequency noise component in an AC voltage inputted to an input terminal and prevents a noise of a high frequency component generated in the inside from being outputted to the outside An EMI (Electro Magnetic Interference) filter unit; An EMI filter unit for converting an AC power input through the EMI filter unit into a DC voltage and reducing a phase difference between voltage and current to suppress unnecessary harmonic generation to minimize reactive power and reduce apparent power, -DC rectification part; An auxiliary power supply unit receiving power from the AC-DC rectifying unit and supplying power to the control elements in the equipment and control elements of the AC-DC rectifying unit; A power supply for interrupting the power supply of the two channels which absorbs the spark by using a condenser in parallel with the contact for extending the lifetime of the relay by using the relay to turn on / off the output voltage controlled by the control microcontroller switch; A power conversion unit that receives power from the AC-DC rectification unit and changes the voltage to a voltage necessary for the user equipment; A USB port unit to which the portable device is connected and supply power converted by the power conversion unit to the connected portable device; A USB connection sensing unit operable as a power source supplied from the auxiliary power supply unit, sensing in real time that the portable device is connected to the USB port unit, and transmitting the sensed USB connection sensing signal to the control microcontroller unit; Wherein the auxiliary power supply unit supplies power to the auxiliary power supply unit when the AC voltage is not input to the input terminal and maintains the standby state, A micro controller unit for controlling the auxiliary power supply unit so that the power supplied to the auxiliary power supply unit is supplied to the AC-DC rectification unit when the USB connection detection signal is received from the connection detection unit; .

Description

[0001] Mobile device rechargeable power supply device [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a power supply for stabilizing power saving and automatic shutdown for charging mobile devices, and more particularly, And more particularly, to a power supply for stabilizing the power saving type and for automatically shutting down the portable device for charging the portable device.

Generally, when connecting a portable device to a USB port installed in a computer, the portable device can be charged only when the computer is normally booted.

In addition, in recent computers, there is a direct voltage output to the USB port portion, but the capacity is limited, so that the output is not properly charged.

In recent years, the capacity of the battery of the portable device has gradually increased, and the power consumption of the portable device has also increased. Therefore, it is necessary to have a function of charging the computer most commonly available in the vicinity. However, Due to the limitations, the mainboard system of the computer may be damaged when the portable device is connected.

As a result, a problem arises in that a limited power source is supplied to the USB port portion of the computer, and the portable device is not properly charged.

Although the technology as a background of the present invention is disclosed in Korean Patent Registration Nos. 0979194 and 0932481, the above-mentioned patent publications do not provide any solution to the above-mentioned problems.

SUMMARY OF THE INVENTION It is an object of the present invention, which is devised to solve the problems as described above, to provide a control microcontroller in which power is supplied from an auxiliary power supply unit to a standby state while an AC voltage is shut off to an input terminal, By checking the connection of the portable device to the USB port and supplying power to the portable device with a power of at least 20 W or more with the power charged in the auxiliary power supply portion, it is possible to charge only the portable device and not operate the external device such as a computer, Which can minimize the power consumption of the portable device and charge the portable device with the maximum power to reduce the charging time.

According to an aspect of the present invention, there is provided an apparatus for removing high-frequency noise components in an AC voltage input to an input terminal, an EMI (Electro Magnetic Interference) filter unit; An EMI filter unit for converting an AC power input through the EMI filter unit into a DC voltage and reducing a phase difference between voltage and current to suppress unnecessary harmonic generation to minimize reactive power and reduce apparent power, -DC rectification part; An auxiliary power supply unit to which power is supplied from the AC-DC rectifying unit to supply power to the control elements of the in-equipment control device and the AC-DC rectifying unit, and the power is charged; A power supply for interrupting the power supply of the two channels which absorbs the spark by using a condenser in parallel with the contact for extending the lifetime of the relay by using the relay to turn on / off the output voltage controlled by the control microcontroller switch; A power conversion unit that receives power from the AC-DC rectification unit and changes the voltage to a voltage necessary for the user equipment; A USB port unit to which the portable device is connected and supply power converted by the power conversion unit to the connected portable device; A USB connection sensing unit operable as a power source supplied from the auxiliary power supply unit, sensing in real time that the portable device is connected to the USB port unit, and transmitting the sensed USB connection sensing signal to the control microcontroller unit; The auxiliary power supply unit supplies power to the auxiliary power supply unit when the AC voltage is not input to the input terminal and controls the AC-DC rectification unit, the auxiliary power supply unit, A micro controller unit for controlling the auxiliary power supply unit such that the power supplied to the auxiliary power supply unit is supplied to the AC-DC rectifier unit when the USB connection detection signal is received; Wherein the control microcontroller controls the AC-DC rectification part such that power is supplied only to the power-off switch when the AC-DC rectification part operates with the power supplied from the auxiliary power supply part, and the power- When the power conversion unit operates as a power source supplied from the power shutdown switch, the power switching unit controls only the USB port unit to which the portable device is connected A power consumption measuring unit for controlling the power conversion unit to supply power to the portable terminal, measuring a power consumption value of the USB port when the portable terminal is connected to the USB port unit, and transmitting the measured standby power value to the control microcontroller unit; Wherein the control microcontroller unit measures and transmits the power consumption measurement unit When the power consumption value of the USB port portion is equal to the standby power value consumed by the USB port portion when the portable device is not connected to the USB port portion, it is determined that the charging of the portable device connected to the USB port portion is completed and the auxiliary power supply portion And the control microcontroller unit receives the USB connection detection signal from the USB connection detection unit without inputting the AC voltage to the input terminal and outputs the USB connection detection signal to the auxiliary power supply unit When an AC voltage is input from the input terminal when the auxiliary power supply unit is controlled so that the power is supplied to the AC-DC rectification unit, the power supplied to the AC-DC rectification unit is cut off by controlling the auxiliary power supply unit, An AC-DC rectifying section, an auxiliary power supply section, and the like, through the AC voltage input to the input terminal, DC rectification unit, and controls the power conversion unit so that power is re-transmitted to the portable device after normal operation if the power-off switch and the power conversion unit operate normally. The AC- A charging voltage and a current control unit for limiting the inrush current generated in the process of charging the emergency energy charging unit; An emergency energy charging unit for charging energy to supply stable power to a load in case of power failure; When the output voltage is lower than the voltage of the emergency energy charging unit, the charging energy of the emergency energy charging unit can be connected to the load. The emergency energy supplied to the output when the input power is abnormal is blocked from being output at all times. An emergency energy discharge connection part for allowing the electric energy to be transmitted to the electric power generator; A current sensing unit sensing a current of a power source output to an output terminal and transmitting a voltage-converted signal to the control microcontroller; A signal value for detecting presence or absence of a user is detected through a detection sensor and is connected in parallel with a signal output from the detection sensor by using a power on switch to provide the signal to the control microcontroller, If the current sensing unit detects no current, it returns to the initialized state. If the power-on switch SW1 is pressed or a movement state is detected around the sensing sensor SEN1, A sensing sensor interlocking power on switch for supplying a signal; A power conversion unit that receives power from the AC-DC rectification unit and changes the voltage to a voltage necessary for the user equipment; And a converted power external output controller capable of controlling power of an external device.

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The power-off switch includes: relays RL1 and RL2 operated by the control micro-controller and capable of turning on / off the voltages supplied to the output of the external socket and the power converting unit; And capacitors C19 and C33 for absorbing sparks generated when the relays RL1 and RL2 are driven.

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In addition, the detection sensor of the sensor-interlocked power-on switch unit and the power-on switch are configured in parallel so that the state of the equipment can be manually and automatically switched.

In addition, the current sensing unit senses a current using a resistor and can switch the operation state of the device.

In addition, the emergency energy charging unit includes an emergency energy charging capacitor capable of supplying energy to the used equipment during instantaneous power failure and instantaneous voltage drop.

The emergency energy discharge connection unit connects the charging energy of the emergency energy charging unit as a load when the output voltage is lower than the voltage of the emergency energy charging unit by 0.7V or more.

According to the present invention as described above, when the AC voltage is cut off to the input terminal, the micro controller unit receives the power from the auxiliary power supply unit and maintains the standby state. And the stable power supply of 20W or more can be supplied to the portable device with the power charged in the auxiliary power supply unit. By charging only the portable device and not operating the external device such as the computer, the power consumption of the external device is minimized, Power supply for stabilizing the power-saving type power supply and for automatically charging the portable device which can reduce the charging time by charging the battery with the maximum power.

FIG. 1 shows a power supply for stabilizing and stabilizing a power saving type power supply for charging a portable device according to a preferred embodiment of the present invention.
FIG. 2 is a flow diagram illustrating a power supply in a state where AC power is not input to an input terminal of a power saving type power supply for stabilizing power saving and automatic shutdown for charging a portable device according to a preferred embodiment of the present invention.
3 is a flow diagram illustrating a power supply flow in a state where a portable device is connected to an input terminal of a power saving type power supply for stabilizing power saving and charging for charging portable devices according to a preferred embodiment of the present invention and AC power is not input.
FIG. 4 is a detailed block diagram of the block diagram shown in FIG.
5 is a detailed circuit diagram of the EMI filter unit of FIG.
6 shows a detailed circuit diagram of the AC-DC rectifier (PFC) of FIG.
7 is a detailed circuit diagram of the charging voltage and current control unit, the emergency energy charging unit and the emergency energy discharge connection unit shown in FIG.
8 is a detailed circuit diagram of the auxiliary power supply unit of FIG.
9 is a detailed circuit diagram of the current sensing unit of FIG.
10 is a detailed circuit diagram of the control micro-controller of FIG.
FIG. 11 is a detailed circuit diagram of the sensing-sensor interlocking power-on switch of FIG.
12 is a detailed circuit diagram of the switch for shutting off the 2-channel power supply of FIG.
FIG. 13 illustrates an example of a basic configuration of an LCD TV capable of controlling power of peripheral devices and automatically shutting off standby power using FIG.
FIG. 14 illustrates a basic configuration example of a computer that can control power of peripheral devices and automatically shut off standby power using the FIG. 1. FIG.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

FIG. 1 shows a power supply for stabilizing and stabilizing a power saving type power supply for charging a portable device according to a preferred embodiment of the present invention. FIG. 4 is a detailed block diagram of the block diagram shown in FIG.

1 and 4, the power supply for stabilizing and powering down the power saving type power supply for charging the portable device includes an EMI filter unit 102, an AC-DC rectification unit (PFC) 104, a charging voltage and current control unit An emergency energy charging unit 108, an emergency energy discharge connection unit 110, an auxiliary power supply unit 112, a current sensing unit 114, a control microcontroller unit 116, a sensing sensor interlocking power on switch 118, And a two-channel power cutoff switch 120, a converted power external output controller 121, and a power conversion unit 122. [ Here, the PFC refers to a power factor correction, and EMI (Electro Magnetic Interference) refers to an electromagnetic wave radiated directly from or transmitted from an electric or electronic device, which interferes with the electromagnetic receiving function of another device. .

Here, the converted power external output controller 121 outputs the DC power supplied from the AC-DC rectifier (PFC) 104 through an outlet provided in the apparatus so that an external device (monitor, modem, printer) , Which limits it.

The power conversion unit (SMPS) 122 is a DC-DC converter that receives power from the AC-DC rectification unit 104 and changes the voltage to a voltage required for a user equipment. Accordingly, in the computer, when the SMPS type power supply is in a standby state, the main power controller is turned off to use some functions of the computer, only the auxiliary power supply 112 is normally driven to minimize power consumption, . In this case, a switching mode power supply (SMPS) is a power supply device that supplies power to a computer system, and is a power supply device using a switching circuit.

5 to 12 are detailed circuit diagrams of respective functional units constituting the power supply for stabilizing the power saving type power supply for charging the portable device and for automatically interrupting the power supply.

5 is a detailed circuit diagram of the EMI filter unit 102. As shown in FIG.

Referring to FIG. 5, the EMI filter unit 102 is directly connected to the input terminal 101 (AC), and is composed of two filters. Therefore, it functions to suppress the common mode and the normal mode, that is, the high frequency noise generated from the outside and the high frequency noise component generated inside.

6 shows a detailed circuit diagram of the AC-DC rectifier (PFC) 104. As shown in FIG.

6, the AC-DC rectifier PFC 104 full-wave rectifies the AC power input from the EMI filter unit 102 to the BD1 to change the DC voltage (DC 365 to 380 V) to T3 and D4 . At this time, the U1 senses the current flowing through R1 and reduces the phase difference between the input voltage and the current as much as possible (coincides with the phase), and boosts the input full-wave rectified voltage by more than a predetermined voltage to generate stable DC power. By thus matching the phases of the voltage and the current, unnecessary harmonics can be suppressed, thereby suppressing the reactive power, thereby minimizing the input power.

7, the detailed circuit diagrams of the charging voltage and current control unit 106, the emergency energy charging unit 108, and the emergency energy discharge connection unit 110 are sequentially shown.

Referring to FIG. 7, the charging voltage and current controller 106 supplies stable DC power rectified by the AC-DC rectifier PFC 104 to C3, C38 of the emergency energy charging unit 108 using R2 and R12, And C42 to limit the inrush current generated during the charging process, thereby preventing the circuit breaker of the home and workplace from tripping and minimizing the distortion of the input power source.

The emergency energy charging unit 108 charges the charging voltage and the voltage supplied to the current control unit 106 to minimize the distortion of the output voltage caused by the instantaneous power failure and the instantaneous voltage drop and the increase of the power consumption, And functions as an energy storage device capable of supplying energy to the load.

The emergency energy discharge connection unit 110 functions as a connection circuit device for preventing the discharge of the emergency energy charging unit 108 when a normal power is inputted and for discharging stored energy to a load side when an abnormal power is inputted.

Therefore, when the voltage output to the load due to the variation of the input power source (AC power source) or the instantaneous power failure becomes lower than the voltages of C3, C38 and C42 of the emergency energy charging unit 108 by 0.7 V or more, Quickly supply power to the load. When the input power is normally input, the output voltage rises faster than the voltage of the emergency energy charging unit 108, so that the power supplied to the load side through the diode D1 is blocked by the diode D1 to normally charge the energy.

8 is a detailed circuit diagram of the auxiliary power supply unit 112. As shown in FIG.

Referring to FIG. 8, the power supplied from the AC-DC rectifier (PFC) 104 is charged through C34 and D14. At this time, the inrush current generated by C44 is suppressed by R34, and the voltage charged in C44 can not be discharged by D14 even if the input voltage drops rapidly, so that the auxiliary power supply unit 112 can be stably powered So as to function as a control microcontroller 116 and a power supply device for stably controlling internal elements.

The auxiliary power supply unit 112 is composed of a buck converter and converts the input DC 365 to 380V to a DC 15V used by the control devices.

When the input voltage falls below 100 V, the power supply is cut off by the UVP (Under Voltage Protection) of the auxiliary power supply 112, thereby completely cutting off the power supplied to the control devices, thereby preventing damage to the used devices and unnecessary malfunctions . In addition, the voltage output through the enable (EN) signal of the AC-DC rectifying part (PFC) 104 can be selected to be DC 15V or DC 9V, and power consumption can be minimized in the initialized state.

9 is a detailed circuit diagram of the current sensing unit 114. As shown in FIG.

9, the current sensing unit 114 senses current consumption of a power source output to the output terminal DC, and transmits a voltage-converted signal to the microcontroller 116 for control.

That is, the output current is converted into a voltage by R37, and the converted value is transmitted to the control microcontroller 116 via the filter circuits R30, C11, C21 for eliminating the high-frequency noise. At this time, D6 is provided to prevent the overcurrent from flowing due to the abnormality of the equipment connected to the output and being damaged by the signal exceeding the input limit voltage of the control microcontroller 116. [ If the input voltage (current amount) is higher than the power supply voltage (DC 5V) of the control microcontroller 116 by 0.4V or more, D6 cuts off the voltage higher than the power supply voltage + 0.4V.

Fig. 10 shows a detailed circuit diagram of the control microcontroller 116. As shown in Fig.

10, the control microcontroller 116 is a region for controlling the power-saving type power supply for the integrated power management according to the present invention. The control microcontroller 116 controls the DC 15V voltage generated from the auxiliary power supply 112 through U4 DC 5V and supplies it to the microcontroller. The output voltage of the auxiliary power supply 112 can be automatically adjusted to DC 15V and DC 9V by using the EN PORT of the AC-DC rectifier PFC, and the AC-DC rectifier PFC 104 (ON / OFF), and controls driving of the power-off switch 122 and the fan (FAN) by using the P_SW_CTRL / FAN_CTRL PORT.

When the fan is driven, the normal operation state is detected using the CHECK_FAN_PORT, the equipment damage due to overheating is prevented, the power of the auxiliary power supply 112 is selected by determining the presence of the user by using the SEN / SW_INPUT PORT, The consumption current in the standby state can be minimized through the control of the DC rectifier (PFC)

And, by using the current conversion value input through the CURRENT PORT, it is possible to generate power to shut off, supply, and alarm, and enable automatic switching from the standby state to the normal driving state after the user is detected.

Fig. 11 shows a detailed circuit diagram of the sensor-interlocked power-on switch 118. Fig.

Referring to FIG. 11, the sensing sensor SEN1 senses a signal as to whether a user exists by using an infrared sensor, amplifies the detected small signal through a U8D / B / D to a predetermined voltage or more, And transmits the amplified signal to the control microcontroller 116 through a peak detector (D2, C34, R26) for a predetermined time width or more.

In this way, the presence or absence of the user can be automatically detected by the operation of the detection sensor, and it is possible to determine whether the apparatus is operating.

In addition, by using the power-on switch SW1 to constitute a signal in parallel with the signal output from the detection sensor and transmitting the signal to the control microcontroller 116, it is possible to determine whether the equipment is operated automatically or manually, Can be obtained.

The system has a function of returning to the initial state without detecting a current in the current sensing unit for a predetermined period of time after the human body is detected by the algorithm of the system. When the power on switch SW1 is pressed or the sensing sensor SEN1 ) If you move your hand around it, you can supply a signal that can be switched to the standby state normally.

12 is a detailed circuit diagram of the switch 120 for shutting off the two-channel power supply.

And is composed of relays RL1 and RL2 operated by the control microcontroller 116 and capable of turning on and off the output of the external socket and the voltage supplied to the power converter 122 . In order to protect the contacts of RL1 and RL2 from sparks generated when the relays RL1 and RL2 are driven, capacitors C19 and C33, which absorb spark noise, are provided in RL1 and RL2, respectively, so that the lifetime can be further extended.

Further, since the voltage supplied to the power conversion unit 122 and the voltage supplied to the external device can be controlled by the output receptacle, if the control circuit of the main use equipment receives the power saving status signal appropriately, can do.

Hereinafter, the operation of the power saving type power supply apparatus for integrated power management according to the present invention will be described collectively with reference to the drawings.

The power input through the input terminal 101 is input to an AC-DC rectification part (PFC) 104 through an EMI filter part. In the AC-DC rectification part (PFC) 104, the input power is converted from DC 365 to 380 V do. The power converted through the AC-DC rectifying part (PFC) 104 is outputted through the power-off switch 120 of the two channels, and the power of the DC 365 to 380 V converted together with the power is supplied through the R1 and R12 to the emergency energy And the capacitors C3, C38, and C42 of the charging unit 108 are charged.

At this time, the in-rush-current generated in the process of charging the capacitor of the emergency energy charging unit 108 is limited by R1 and R12, so that damage to the inside of the device, Distortion of input power can be minimized by preventing tripping and limiting inrush current.

At this time, when the input power is normally inputted, since the output voltage rises faster than the voltage of the emergency energy charging unit 108, the power supplied to the load side through the diode D1 is cut off by the diode D1 and normally charges the energy.

However, if the power consumption consumed by the load increases, or the output voltage becomes lower than the voltage of the emergency energy charging unit 108 by 0.7 V or more due to distortion of the input voltage and instantaneous power failure, the charged voltage is rapidly supplied to the load So as to minimize the power ripple of the output power source, thereby stabilizing the power source. Such an output power is suitably limited by the power-off switch, so that unnecessary power consumption (standby power) can be suppressed.

The AC-DC rectifying unit (PFC) 104 converts the input AC power into DC 365-380 V, minimizes the phase difference between the voltage and the current, and thus unnecessarily generates distortion and unnecessary reactive power (Apparent power) at the actual power plant can be reduced and the loss in the power system caused by the reactive power can be also reduced. Thus, it is possible to obtain the economic benefit. Can be reduced by about 30% or more.

In addition, by supplying stabilized DC power to the equipment, the service life of the office equipment using the SMPS type power supply can be extended to reduce unnecessary wasted repair and exchange costs.

The control microcontroller 116 can be used to appropriately control the power shutoff switch 120 to prevent damage to the apparatus through accurate and safe control and to save energy.

The control microcontroller 116 changes the power source DC 15V from the auxiliary power supply unit 112 to a required power source DC 5V and controls the amount of current input from the current sensing unit 114 and the amount of current input from the sensing sensor- (ON / OFF) of the power-off switch 120 and the AC-DC rectifier (PFC) 104 through an overall system control algorithm.

The push-button switch of the sensor-interlocking power-on switch 118 operates in parallel with the detection sensor, and operates to automatically and manually apply power.

Then, an output display (LED) is used to inform the user of the status according to the status of the apparatus. Accordingly, it is possible to prevent the secondary damage of the used device by monitoring the output current and detecting the momentary instantaneous overcurrent to shut off the power switch.

The voltage input to the auxiliary power supply unit 112 uses a power charged by the emergency energy charging unit 108 and the AC-DC rectifying unit (PFC) 104, and the voltage for charging the emergency energy due to the long- When the voltage falls below a predetermined voltage (DC 100 V), the power output to the control microcontroller is cut off, thereby preventing malfunction of the used equipment.

The DC power converted and controlled from the AC-DC rectifier (PFC) 104 is supplied to the power conversion unit 122 of the SMPS system and operated, and the external control signal is supplied to the power-saving power supply for the integrated power management And can control the drive command of the power conversion unit 122 by directly receiving it. Further, since the driving voltage of the power conversion unit 122 is supplied from the power-saving type power supply for integrated power management, a separate auxiliary power supply is not necessary and standby power can be minimized. The converted power external output controller 121 can supply power to devices connected to the outside.

As described above, in the present invention, the EMI filter unit 102, the AC-DC rectifier unit 104, the charging voltage and current controller 106, the emergency energy charging unit 108, the emergency energy discharge connection unit 110, An auxiliary power supply 112, a current sensing unit 114, a control microcontroller 116, a sensing sensor interlocking power on switch 118, a two-channel power shutoff switch 120, a power conversion unit 122, By connecting a power-saving power supply for integrated power management comprising a power external output controller 121 to a power supply such as an SMPS, it minimizes the reactive power component generated when the power is used, thereby reducing unnecessary power consumption, ) It is possible to block unnecessary standby power consumption by the system as a whole unit, and to compensate for instantaneous power failure and voltage drop occurring in the power system for a certain period of time. In addition, the power-saving type power supply device for integrated power management according to the present invention not only has a damage caused by instantaneous power failure and voltage drop but also includes an intelligent power saving function using an automatic control system, thereby making it possible to save energy more rationally.

The power-saving type power supply device for integrated power management according to the present invention can be constructed independently and can be configured in a product without being installed outside, so that it can be expected to greatly reduce cost and improve functions. Practically, by incorporating a high-efficiency power conversion unit, it is possible to reduce the harmonic content generated during use as much as possible, thereby suppressing the harmonic content (THD) to less than 5%, thereby reducing the apparent power required for use in actual power plants by 30% or more , Microcontroller and various sensors, it is possible to maximize the energy saving by blocking the unnecessary standby power consumption. In addition, since the electric power of the electronic product can be cut off from the source, the damage can be minimized by prevention of a fire accident and an electric shock accident.

For example, by applying the power supply method by the power saving type power supply device for integrated power management according to the present invention to the power for computer power or the power for LCD TV, the above-mentioned effect can be obtained. There is shown a basic configuration example of an LCD TV capable of controlling power of peripheral devices and automatically shutting off standby power by using a power-saving type power stabilizing and automatic power-off device for charging the portable device shown in the figure. 12 shows a basic configuration example of a computer that can control the power of peripherals and automatically shut off the standby power by using the power saving type power supply for charging the portable device and the power supply for automatic shutdown shown in FIG. .

In this way, the main device (computer system: computer system, TV system: LCD TV) inside the home appliances and office equipment (computer system: main body, monitor, printer, modem, TV system: TV, DVD, VCT, set- The power saving type power supply device for integrated power management is incorporated in the power supply control device. In addition, by controlling the power of the devices in this way, it is possible to determine the use state of the devices, and when not in use, the power of the entire system can be automatically shut off, so that the standby power of the entire system can be operated at 0.5W level, By incorporating a circuit, unnecessary power waste can be reduced by minimizing the reactive power component generated when the power source is used. In addition, it can be used to protect the equipment from momentary power failure and instantaneous voltage drop (within 1 second) caused by electric power accident occurring in natural disaster and power line system because it is easy to store energy by using AC power and converting it to DC. , It is judged whether the system is used or not and the power is automatically shut off, thereby protecting the device from lightning and surge, and preventing electric shock accidents and fire accidents.

Meanwhile, even when the input of the AC voltage is interrupted (blocked) at the input terminal 101, the power supply for stabilizing and powering the power saving type power supply for charging the portable device according to the present invention can prevent the portable device A USB connection unit 124, a USB connection detection unit 126, and a power consumption measurement unit 128 that enable charging when connected.

Assuming that the apparatus according to the present invention is installed in the computer, when the input of the alternating voltage to the input terminal 101 is interrupted (blocked), the power of the computer is turned off and the input terminal 101 ), The power of the computer is turned on.

First, the USB port unit 124 is connected to the portable device, and supplies the converted power from the power conversion unit 122 to the connected portable device.

A portable device refers to a device that can be charged using a USB port, such as a cellular phone, MP3, or digital camera.

For example, if the apparatus of the present invention is installed in a computer, the USB port unit 124 may be installed in the apparatus of the present invention separately from a USB port already installed in the computer, But it is not limited thereto.

The USB connection sensing unit 126 operates as a power supply from the auxiliary power supply unit 112 and senses in real time that the portable device is connected to the USB port unit 124 and outputs the sensed USB connection sensing signal to the control microcontroller unit 116).

The control microcontroller unit 116 controls the apparatus of the present invention as described above and the USB port unit 124, the USB connection sensing unit 126 and the power consumption measuring unit 128 are connected to the apparatus of the present invention, DC power supply unit 112, a power-off switch 120, and a power conversion unit 122 (not shown), depending on whether the portable device is connected to the USB port unit 124. The AC- ).

The control microcontroller unit 116 controls the connection of the portable device to the USB port unit 124 through the USB connection detection unit 126 while the AC voltage is being input to the input terminal 101 Upon receipt of the sensed USB connection detection signal, the power conversion unit 122 is controlled to supply power to the USB port unit 124.

FIG. 2 is a flow diagram illustrating a power supply in a state where AC power is not input to an input terminal of a power saving type power supply for stabilizing power saving and automatic shutdown for charging a portable device according to a preferred embodiment of the present invention.

2, when the AC voltage is input to the input terminal 101 and the AC voltage is not input to the input terminal 101, the control microcontroller 116 operates as the power source When the input of the AC voltage to the input terminal 101 is interrupted so that the charged power is supplied to the power supply unit 112 and the standby state can be maintained, the auxiliary power supply unit 112 is controlled to supply power from the auxiliary power supply unit 112, .

The control microcontroller unit controls the auxiliary power supply unit 112 to supply power to the USB connection sensing unit 126 so that the USB connection sensing unit 126 can detect the connection of the portable device in real time.

3 is a flow diagram illustrating a power supply flow in a state where a portable device is connected to an input terminal of a power saving type power supply for stabilizing power saving and charging for charging portable devices according to a preferred embodiment of the present invention and AC power is not input.

3, when the microcomputer controller 116 receives the USB connection detection signal from the USB connection sensing unit 126 when the power is supplied from the auxiliary power supply unit 112 and maintains the standby state, And controls the auxiliary power supply 112 so that the power charged in the AC power supply 112 is supplied to the AC-DC rectifier 104.

When the AC-DC rectification unit 104 operates on the power supplied from the auxiliary power supply unit 112, the control micro-controller unit 116 controls the AC-DC rectification unit 104 ).

Then, when the microcomputer controller 116 operates on the power supplied from the AC-DC rectifier 104, the microcomputer controller 116 controls the power switch 122 so that power is supplied only to the power converter 122 120).

The control microcontroller unit 116 controls the power conversion unit 122 such that power is supplied to only the USB port unit 124 to which the portable device is connected when the power conversion unit 122 operates with the power supplied from the power- (122).

As described above, the control micro-controller unit 116 can control the AC-DC rectification unit 104, the auxiliary power supply unit 112, the power-off switch 120, and the power conversion It is possible to charge the portable device through the control of the unit 122.

Thus, the present invention controls not only a limited power supply such as an existing computer but also a stable power supply of 20W or more. Accordingly, the present invention can operate the AC-DC rectifying unit 104, the auxiliary power supplying unit 112, the power-off switch 120, and the power converting unit 122 without operating other parts of the computer, Power consumption can be minimized.

Here, the control micro-controller unit 116 receives the USB connection detection signal from the USB connection detection unit 126 without receiving the AC voltage from the input terminal 101, and the power charged in the auxiliary power supply unit 112 is AC DC rectification unit 104 and supplies the AC power to the AC-DC rectification unit 104 by controlling the auxiliary power supply unit 112 when the AC power is input to the input terminal 101 when the auxiliary power supply unit 112 is controlled to be supplied to the DC- So that the power transmitted to the portable device is cut off.

The control microcontroller unit 116 controls the EMI filter unit, the AC-DC rectification unit 104, the auxiliary power supply unit 112, the power shutoff switch 120, and the AC power supply unit 120 via the AC voltage input to the input terminal 101 After confirming that the power converter 122 operates normally, the power converter 122 controls the power converter 122 so that power is re-transmitted to the portable device.

For example, when the apparatus of the present invention is installed in a computer, when an external control signal such as a computer power-on signal is input by a user in a state where the portable device is being charged, The power supply to the portable device is interrupted because an abnormal power is instantaneously supplied to the computer through the input of the external control signal. Thereafter, whether or not the computer has normally booted is confirmed through a signal communicating with the computer in the external control signal, and the power supply to the USB port unit 124 is resumed to continuously charge the portable device. Here, a control signal sensing unit (not shown) for sensing an external control signal may be further configured.

The power consumption measuring unit 128 measures the standby power value of the USB port unit 124 when the portable device is connected to the USB port unit 124 and outputs the measured standby power value to the control microcontroller unit 116).

If the power consumption value of the USB port unit 124 measured and transmitted by the power consumption measurement unit 128 is equal to or equal to the measured standby power value, the control microcontroller unit 116 controls the USB port unit 124 And controls the auxiliary power supply unit 112 to shut off the power supplied to the AC-DC rectification unit 104. The AC-

Accordingly, the power supply for stabilizing and powering off the power saving type power supply for charging the portable device according to the present invention effectively cuts off the standby power, thereby achieving the power saving effect and the fire prevention effect, and the unnecessary power component The power saving effect is maximized and the voltage supplied to the device is stabilized. In addition, in a situation where the AC voltage is not inputted to the input terminal 101 due to the power-off of the external device, The portable device can be charged at all times by transmitting the maximum power required for charging the portable device through the charging device 124.

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the foregoing detailed description, and all changes or modifications derived from the meaning and scope of the claims and the equivalents thereof are included in the scope of the present invention Should be interpreted.

101: Input terminal 102: EMI filter unit
104: AC-DC rectifier (PFC) 106: Charge voltage and current controller
108: Emergency energy charging unit 110: Emergency energy discharge connection unit
112: auxiliary power supply unit 114: current sensing unit
116: Control micro-controller unit 118: Detection sensor interlocking power-on switch
120: Power switch 121: Converted power external output controller
122: power conversion unit 124: USB port unit
126: USB connection detection unit 128: Power consumption measurement unit

Claims (10)

An EMI (Electro Magnetic Interference) filter unit for removing a high frequency noise component in the AC voltage inputted to the input terminal and preventing a noise of a high frequency component generated inside from being output to the outside;
An EMI filter unit for converting an AC power input through the EMI filter unit into a DC voltage and reducing a phase difference between voltage and current to suppress unnecessary harmonic generation to minimize reactive power and reduce apparent power, -DC rectification part;
An auxiliary power supply unit to which power is supplied from the AC-DC rectifying unit to supply power to the control elements of the in-equipment control device and the AC-DC rectifying unit, and the power is charged;
A power supply for interrupting the power supply of the two channels which absorbs the spark by using a condenser in parallel with the contact for extending the lifetime of the relay by using the relay to turn on / off the output voltage controlled by the control microcontroller switch;
A power conversion unit that receives power from the AC-DC rectification unit and changes the voltage to a voltage necessary for the user equipment;
A USB port unit to which the portable device is connected and supply power converted by the power conversion unit to the connected portable device;
A USB connection sensing unit operable as a power source supplied from the auxiliary power supply unit, sensing in real time that the portable device is connected to the USB port unit, and transmitting the sensed USB connection sensing signal to the control microcontroller unit;
The auxiliary power supply unit supplies power to the auxiliary power supply unit when the AC voltage is not input to the input terminal and controls the AC-DC rectification unit, the auxiliary power supply unit, A micro controller unit for controlling the auxiliary power supply unit such that the power supplied to the auxiliary power supply unit is supplied to the AC-DC rectifier unit when the USB connection detection signal is received; Lt; / RTI >
The control micro-
When the AC-DC rectifying part operates with the power supplied from the auxiliary power supplying part, the AC-DC rectifying part is controlled to supply power only to the power-off switch. When the power-off switch operates with the power supplied from the AC-DC rectifying part And controls the power conversion unit so that power is supplied only to the USB port unit to which the portable device is connected when the power conversion unit operates as a power supply supplied from the power supply cutoff switch,
And a power consumption measuring unit for measuring a power consumption value of the USB port unit when the portable device is connected to the USB port unit and transmitting the measured standby power value to the control microcontroller unit,
The control micro-
If the power consumption value of the USB port unit measured and transmitted by the power consumption measuring unit is equal to the standby power value consumed by the USB port unit when the portable device is not connected to the USB port unit, And stops the power supplied to the AC-DC rectification unit by controlling the auxiliary power supply unit,
The control micro-
When an AC voltage is not input to the input terminal and a USB connection detection signal is received from the USB connection sensing unit to control the auxiliary power supply to supply the power charged in the auxiliary power supply unit to the AC-DC rectification unit, When the AC voltage is input, the auxiliary power supply unit is controlled to shut off the power supplied to the AC-DC rectification unit, thereby controlling the power to be transmitted to the portable device to be cut off, and the EMI filter unit, AC After checking whether the DC rectifying section, the auxiliary power supply section, the power cutoff switch, and the power converting section are operating normally, the power conversion section is controlled so that the portable device is re-
A charging voltage and current controller connected to the AC-DC rectifier for limiting an inrush current generated in charging the emergency energy charging unit with a voltage rectified by the AC-DC rectifier;
An emergency energy charging unit for charging energy to supply stable power to a load in case of power failure;
When the output voltage is lower than the voltage of the emergency energy charging unit, the charging energy of the emergency energy charging unit can be connected to the load. The emergency energy supplied to the output when the input power is abnormal is blocked from being output at all times. An emergency energy discharge connection part for allowing the electric energy to be transmitted to the electric power generator;
A current sensing unit sensing a current of a power source output to an output terminal and transmitting a voltage-converted signal to the control microcontroller;
A signal value for detecting presence or absence of a user is detected through a detection sensor and is connected in parallel with a signal output from the detection sensor by using a power on switch to provide the signal to the control microcontroller, If the current sensing unit does not detect a current, it returns to the initialized state. If the power on switch SW1 is pressed or a movement state is detected around the sensing sensor SEN1, A sensing sensor interlocking power on switch for supplying a signal;
A power conversion unit that receives power from the AC-DC rectification unit and changes the voltage to a voltage necessary for the user equipment; And
And a converted power external output controller capable of controlling the power of the external device. The power supply for stabilizing and powering the power saving type power supply for charging the portable device.
delete delete delete The power supply apparatus according to claim 1,
Relays RL1 and RL2 that are operated by the control microcontroller and are capable of turning on / off the voltages supplied to the output of the external socket and the power converter, and spark gates (RL1 and RL2) And capacitors C19 and C33 for absorbing the power of the portable device.
delete The method according to claim 1,
And a power-on switch connected to the detection sensor of the sensing-sensor-associated power-on switch unit in parallel to manually and automatically switch the state of the equipment. .
The apparatus of claim 1, wherein the current sensing unit comprises:
And a power supply for stabilizing and powering the power saving type power supply for charging the portable device.
The apparatus according to claim 1, wherein the emergency energy-
And an emergency energy charging capacitor capable of supplying energy to the equipment in case of a momentary power interruption and a momentary voltage drop.
The apparatus of claim 1, wherein the emergency energy discharge connection unit comprises:
And the charging energy of the emergency energy charging unit is connected to the load when the output voltage is lower than the voltage of the emergency energy charging unit by 0.7V or more.

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