TW201118552A - Energy-saving circuit and portable computer using the same thereof - Google Patents

Abstract

An energy-saving circuit and a portable computer using the same thereof are disclosed. The energy-saving circuit comprises a network port, a first logic gate, a second logic gate, and a switch unit. The network port comprises a detecting pin used for detecting a connecting state between the network port and a network connector to output a detecting signal. The first logic gate outputs a first logic signal according a boot state signal and a adaptor connecting signal, and the second logic gate outputs a second logic signal according the first logic signal and the detecting signal. The switch unit cut off a working power supply of the network integrated circuit according to the second logic signal.

Description

201118552

.TW5649PA VI. Description of the Invention: [Technical Fields of the Invention] Lunar New Year has an energy-saving circuit and a portable computer that can be applied to it. Roads and Applications [Prior Art] The most important thing about the use of portable computers is that they are easy to carry and use: 'But the portable computer is not plugged in any of the two, so The life of the battery and the power-saving device of the portable computer are the key to extending the life of the portable computer. Since the Internet has become more and more popular, modern people have become more dependent on the Internet. When using portable computers, they often need network connection: When the network route is connected with a portable computer, it can be carried. The computer is connected to the network via the network integrated circuit. However, when the user does not need to use the Internet, although the network route is removed from the portable computer, the network integrated circuit still has a power consumption of about 30 〇mW, resulting in power consumption of the portable computer /= How to reduce unnecessary power consumption when the portable computer does not use the Internet is an urgent problem to be solved in the industry. SUMMARY OF THE INVENTION The present invention relates to an energy-saving circuit and a portable computer using the same, which is to cut off the working power supply of the four-segment supply circuit to the network integrated circuit when the network plug is not inserted into the network port. To reduce unnecessary power consumption. According to one aspect of the invention, an energy saving circuit is proposed. Energy-saving circuit 201118552 TW5649PA * r Includes network port, first logic gate, second logic gate and switch unit. The network connection includes a detection pin for detecting the connection state of the network connection and the network connector to output a detection signal. The first logic gate outputs a first logic signal according to the power on state signal and the power converter connection signal. The second logic gate is configured to output the second logic signal according to the first logic signal and the detection signal. The switching unit cuts off the operating power of the network integrated circuit according to the second logic signal. According to another aspect of the present invention, a portable computer is provided. The portable computer includes a computer body, a network integrated circuit, and an energy-saving circuit. The network integrated circuit is coupled to the computer body. The energy saving circuit includes a network port, a first logic gate, a second logic gate, and a switching unit. The network connection includes a detection pin (detect piη) for detecting the connection state of the network port and the network connector to output a detection signal. The first logic gate outputs the first logic signal according to the power on state signal and the power converter connection signal. The second logic gate is configured to output the second logic signal according to the first logic signal and the detection signal. The switching unit cuts off the working power of the network integrated circuit according to the second logic signal. In order to make the above description of the present invention more comprehensible, a preferred embodiment will be described below with reference to the accompanying drawings, and the following description is made in detail: [Embodiment] In order to avoid unnecessary power consumption, the following embodiments An energy-saving circuit and a portable computer using the same are provided. The energy saving circuit includes a network connection port, a first logic gate, a second logic gate, and a switching unit. The network connection includes a detection pin for detecting the connection state of the network connection and the network connector to output a detection signal. The first logic gate is based on the power-on state 201118552

, , I W5649PA signal and power converter connection signal output the first logic signal. The second logic gate is configured to output the second logic signal according to the first logic signal and the detection signal. The switching unit cuts off the working power of the network integrated circuit according to the second logic signal. The portable computer includes a computer body, a network integrated circuit, and an energy-saving circuit. The network integrated circuit is coupled to the computer body. The energy saving circuit includes a network connection port, a first logic gate, a second logic gate, and a switching unit. The network port 包括 includes a detection pin for detecting the connection state of the network port and the network connector to output a detection signal. The first logic gate outputs a first logic signal according to the power-on state signal and the power converter connection signal. The second logic gate is configured to output the second logic signal according to the first logic signal and the detection signal. The switching unit cuts off the working power of the network integrated circuit according to the second logic signal. First Embodiment Referring to Figure 1, Figure 1 shows a schematic diagram of a portable computer. The portable computer 1 includes a computer body 1A, an energy saving circuit 20, and a network integrated circuit 90. The network integrated circuit 90 is coupled to the computer body 10 and the energy saving circuit 20. The computer body 10 performs network connection operation via the network integrated circuit 90, and the energy saving circuit 20 is used to reduce unnecessary power consumption of the network integrated circuit 90. Please refer to FIG. 2 and FIG. 3 at the same time. FIG. 2 is a diagram showing an energy-saving circuit according to the first embodiment, and FIG. 3 is a schematic diagram showing a network connection port. The energy saving circuit 20 includes a network port 210, a logic gate 220, a logic gate 230, a switching unit 240, a pull low circuit 250, and an inverter.

I 201118552

TW5649PA 260 and discharge circuit 27〇. The network port 21 includes a detection pln 2i2, a metal casing 214, and a resilient member 216. The elastic member 216 is, for example, a spring, and the elastic member 2i6 is used to connect the detecting pin 212 and the metal outer 216. The detecting pin 212 is configured to detect the connection state of the network port 210 and the network connector to output the detecting signal S1. The pull-down circuit 250 is coupled to the detection pin 212 and the inverter 260, and outputs the insertion signal S2 according to the detection signal S1, and the inverter 260 outputs the inverted insertion signal S3 according to the insertion signal S2. The pull-down circuit 250 includes a resistor R1 and a P-type metal oxide semiconductor transistor QP1. P-type metal oxide semiconductor electrical aa body QP1 source receiving DC voltage VCC 'P-type metal oxide semiconductor transistor QP1 gate receiving detection signal SI, P-type metal oxide semiconductor transistor QP1 pole coupling To resistor R1 and inverter 260. When the network connector is inserted into the network port 210, the detecting pin 212 is electrically connected to the metal case 216. Since the potential of the metal case 216 corresponds to the ground potential ', the P-type metal oxide semiconductor transistor QP1 is turned on. The p-type metal oxide semiconductor transistor QP1 is turned on such that the interpolating signal S2 is equal to the direct current voltage VCC, and the direct current voltage VCC is equivalent to a logic one. Inverter 260 inverts logic 1 to logic 〇 so that when the network connector is plugged into network port 210, inverted signal S3 is equal to logic zero. The logic gate 220 is, for example, a reverse gate (Nor Gate), and the logic gate 220 is connected to the power converter according to the power-on state signal SLP_S3#-S3R and the power converter; the ADP_PRES outputs a logic signal S4. The power-on status signal SLP_S3#_MR is used to indicate whether the system is powered on, and the power converter connection signal ADP_PRES is used to indicate whether the power converter (Adaptor) is plugged into the power supply. 201118552

, I W5649PA contact. When the power-on status signal SLP_S3#_S3R is equal to logic, the system is not in the power-on state, and when the power converter connection signal Adp_preS is equal to logic 0, the power converter is not plugged into the power port. Conversely, when the power-on state signal SLP-S3#_S3R is equal to a logic 1 indicating that the system is in the power-on state and when the power converter connection signal ADp_pres is equal to a logic 1 indicating that the power converter is not plugged into the power port. When the power-on state signal SLP_S3#_S3R and the power converter connection signal ADp pRES are equal to the logic 〇 'the logic signal S4 is equal to the logic 〇. The LU logic gate 230 is, for example, a gate (〇Γ Gate), and the logic gate 230 controls the switching unit 240 based on the logic signal S4 and the inverted insertion signal output logic signal S5. The switching unit 240 is, for example, a p-type metal oxide semiconductor transistor' and the switching unit 240 cuts off the operating power +V3_LAN of the network integrated circuit 90 in accordance with the logic signal S5. In short, when the system is not powered on and the power converter (Adapt〇r) is not plugged into the power connection and the network connector is not plugged into the network port, the switch unit 24 cuts off the network. The integrated circuit power supply +V3_LM is used to reduce the power consumption of φ. The discharge circuit 270 is coupled between the logic gate 230 and the network integrated circuit 90 and is controlled by the logic signal S5 for discharging. SECOND EMBODIMENT Referring to Fig. 4, Fig. 4 is a diagram showing a power saving circuit in accordance with a second embodiment. The energy saving circuit 30 is different from the power saving circuit 20 in that the power saving circuit 30 does not use the pull-down circuit 250, and the switching unit 340 is an N-type metal oxide semiconductor transistor instead of a P-type metal oxide semiconductor transistor. In addition, the logic gate 320 is an OR gate instead of an inverse or gate, and the discharge circuit 201118552

TW5649PA ΓHalei = oxide semiconductor transistor instead of N-type metal oxide, / electric anode. The inverter 260 is coupled to the detection pin 212 and the logic gate and outputs an inverted detection signal S6 according to the detection signal S1. Logic gate 23: The switching unit 340 is controlled according to the logic signal and the inverted detection signal S6 output logic signal S7. 2 When the system is not powered on and the power converter (Adapt〇r) is not connected to the power port and the network connector is not plugged into the network port 埠21〇, open, heart-shaped ^ SLP-S3#-S3R and power converter The connection signal ADp_pRES is equal to the logical 〇. The logic gate 320 outputs a logic 泸S4 according to the power-on state signal SLp_S3#_S3R and the power converter connection signal ADP_PRES, and the sequence signal S4 is equal to the logic 〇. When the network connector is not plugged into the network remote port, the inversion detection semaphore S6 is equal to the logic port. The logic gate 23 输出 controls the switching unit 340 according to the logic signal S4 and the inverted detection 彳 § number % output logic signal. Since the logic signal S7 is equal to logic 0 when the system is not powered on and the power converter (Adaptor) is not plugged into the power port and the network connector is not plugged into the network port 210, the switch unit 24 is cut off (Cut Off). The network power supply circuit 90 operates from the power supply +V3_LAN to reduce power consumption. The energy-saving circuit disclosed in the above embodiments of the present invention cuts off the operating power of the network integrated circuit to reduce power consumption when the network connector is not plugged into the network port. In view of the above, although the present invention has been disclosed above in a preferred embodiment, it is not intended to limit the invention. Those skilled in the art having the knowledge of the present invention can make various 201118552 without departing from the spirit and scope of the present invention.

, , I W^64yHA change and retouch. Therefore, the scope of the invention is defined by the scope of the appended claims. [Simple description of the diagram] Figure 1 shows a schematic diagram of a portable computer. Fig. 2 is a diagram showing an energy saving circuit in accordance with the first embodiment. Figure 3 shows a schematic diagram of a network connection. Fig. 4 is a diagram showing an energy saving circuit in accordance with the second embodiment. [Main component symbol description] φ 1 : Portable computer 10 : Computer main body 20 : Energy-saving circuit 90 : Network integrated circuit 210 : Network connection 埠 212 : Detection pin 214 : Metal case 216 : Elastic element • 22 〇, 23〇, 32〇: Logic gates 240, 340: Switch unit 250: Pull-down circuit 260: Inverters 270, 370: Discharge circuits QP1, QP2: P-type MOS transistor QN1: N-type metal oxide Semiconductor transistor Rl, R2: resistor 9

Claims (1)

201118552 TW5649PA VII. Shenqing patent scope: I An energy-saving circuit, including: A network connection, including: 侏州侏脚,用,丨 琢 only network connection ,, , ' ' f^4 < connector The connection state to output a detection signal; . The first logic gate is configured to output a first logic signal according to the -power state signal and the power source switching connection signal; ', the first logic gate' is configured to output one according to the first logic signal and the detection signal a second logic signal; and: the switch unit 'for cutting off the operating power of the integrated circuit according to the second logic signal. The utility model refers to the energy-saving circuit described in the first item of the patent scope, wherein the cesium is a metal oxide semiconductor (MOS) transistor. 3. The energy-saving circuit of claim 2, further comprising: - a pull-down circuit for consuming the detecting pin and outputting an insertion signal according to the detecting signal; and an inverter For outputting an inverted insertion signal according to the insertion signal. The energy saving circuit of claim 3, wherein the first logic gate outputs the second logic signal according to the first logic signal and the reverse phase insertion signal. The energy-saving circuit of claim 3, wherein the pull-down circuit comprises: a resistor; and 201118552. (rW564VPA-P type metal oxide semiconductor transistor, source of the p-type metal oxide semiconductor transistor The pole receives the all-current current house, and the pole between the p-type metal oxide + conductor transistor receives the detection signal, and the p-type metal oxide semiconductor is electrically connected to the inverter. The energy-saving circuit described in item j, wherein the switching unit is a Ν-type metal oxide semiconductor (Μ S S Semiconductor, MOS) transistor. 7 · The energy-saving circuit described in claim 6 of the patent scope, further comprising: An anti-phase ϋ, the shaft is connected to the _ pin, and the detection signal outputs an inversion detection signal. ... 8. The energy-saving circuit according to claim 7 of the patent scope, wherein the child:: logic gate is The first logic signal and the inverted detection signal output a second logic signal. 9. The energy-saving circuit according to the scope of claim 2, further comprising: a discharge circuit coupled to the second logic Gate and the net Between the integrated circuits, and controlled by the second logic signal. 1) According to the energy-saving circuit described in claim 1, the first logic gate of the basin is a reverse gate (Nor Gate). U.S. U.S. Patent Application No. 1, the first logic gate is an OR gate., w 12. The second logic of energy-saving electricity as described in claim 1 For the energy-saving circuit described in item 1 of the patent application, the network connection includes: /, ^ - metal casing; and 1 » 201118552 TW5649PA --23⁄4 — , L ^ is connected to the metal casing and the test pin. 遝n as claimed in claim 1 of the energy-saving circuit, (4) elastic 7L is a spring. 15. - Portable computer, including a computer body; a peripheral circuit, coupled to the computer body; an energy-saving circuit, comprising: a network connection, including: Detecting a pin for detecting a connection state of the network port and a network connector to output a signal; the first logic gate of the first one is configured to connect the signal according to a power on state signal and a power converter Turning off a first logic signal; a first logic gate for outputting a second logic signal according to the first logic signal and the detection signal; and a switching unit for cutting the network according to the second logic signal The working power of the circuit integrated circuit. 16. The portable computer of claim 15, wherein the switching unit is a P-type metal oxide semiconductor (Minus (4) eucalyptus semiconductor, MOS) transistor. 17. The portable computer of claim 16, wherein the portable computer further comprises: a pull-down circuit for multiplexing the remote detection pin, and outputting an insertion signal according to the debt measurement signal; and an inverted state And outputting an inverted insertion signal according to the insertion signal. ° 12 201118552 .I W5649PA 8', as described in claim 17 of the patent scope, wherein the second logic gate outputs the second logic signal according to the first logic:::,. The Han phase is inserted into the tiger. 19. The pull-down circuit described in the 18th item of the patent application scope includes: J, a resistor thereof; and a P-type metal oxide semiconductor transistor, the P-type metal shy external semiconductor semiconductor The source of the crystal receives the DC voltage, and the gate of the p-type metal corpus + conductor transistor receives the detection signal, and the semiconductor (4) is connected to the resistor and the counter-gate is closed. The portable computer of the fifteenth item is characterized in that it is a Metal 〇xide SemiConductor (M〇s) transistor. The portable computer, as described in Section 2() of the application scope of claim b, is coupled to the detection pin and outputs an inverted detection signal according to the detection signal. In the portable computer described in claim 21, the logic gate outputs a second logic signal according to the first logic signal and the inverse (four) measurement signal. The portable computer, as described in claim 15, wherein a discharge circuit is coupled between the second logic gate and the network power and controlled by the second logic signal. . 24. The portable computer according to claim 15 of the patent application, in the 201118552 TW5649PA, the 5th brother-one logic gate is the reverse gate (Nor Gate). The second logic gate is the OR Gate in the portable electric μ described in claim 15 of the patent application. ^ 26· The portable logic band described in item π of the patent application is the first gate of the 5th circuit or the OR Gate. 27. The portable network as described in the πth application of the patent application includes: a 'computer one metal casing; and an elastic 7L piece connecting the metal casing and the detecting pin. 28. As described in claim 15, the elastic element is a spring. ^Computer