Voltage control device and operation method thereof

Abstract

The present invention provides a voltage control device and an operation method thereof. The voltage control method includes a control unit, a processing unit and a feedback sensing unit. The control unit generate a voltage step according to a requirement voltage and a feedback signal. The processing unit receives the voltage step, and generates a current signal according to the voltage step. The feedback sensing unit receive a voltage signal, and generates a feedback signal according to the voltage signal. The voltage signal is generated in response to the current signal.

Description

[Technical Field]

[0001] This invention relates to a control device, and more particularly to a voltage control device and its operating method. [Previous Technology]

[0002] Generally speaking, during the booming development of esports, online games are constantly being innovated. Many esports gaming machines are sold on the market, and to ensure a smooth, lag-free gaming experience, the specifications and requirements of the computers have increased significantly, such as CPU selection, graphics card, case, fans, etc. Among these, memory overclocking is the most widespread, requiring verification of the motherboard's compatibility and stability with the memory. During mass production and verification in factories, many machine problems were found to point to memory overclocking.

[0003] However, memory overclocking requires adjusting the voltage to meet the overclocking voltage control requirements, but the system cannot know the accuracy of the voltage. If the actual voltage does not reach the expected voltage, it will lead to poor memory stability. Therefore, how to effectively generate a suitable voltage to increase the stability of memory operation is an important issue at present. [Summary of the Invention]

[0004] Embodiments of the present invention provide a voltage control device and its operating method, thereby generating a suitable voltage to increase the stability of memory operation and increase ease of use.

[0005] This embodiment of the invention provides a voltage control device, including a control unit, a processing unit, and a feedback sensing unit. The control unit generates a voltage hierarchy based on the required voltage and a feedback signal. The processing unit receives the voltage hierarchy and generates a current signal based on the voltage hierarchy. The feedback sensing unit receives the voltage signal and generates a feedback signal based on the voltage signal, wherein the voltage signal is generated in response to the current signal.

[0006] This embodiment of the invention provides an operation method for a voltage control device, comprising the following steps: A control unit generates a voltage hierarchy based on a demand voltage and a feedback signal. A processing unit receives the voltage hierarchy and generates a current signal based on the voltage hierarchy. A feedback sensing unit receives the voltage signal and generates a feedback signal based on the voltage signal, wherein the voltage signal is generated in response to the current signal.

[0007] The voltage control device and its operating method disclosed in the embodiments of the present invention generate a voltage hierarchy through a control unit based on the required voltage and a feedback signal, a processing unit generates a current signal based on the voltage hierarchy, and a feedback sensing unit generates a feedback signal based on the voltage signal, wherein the voltage signal is generated in response to the current signal. In this way, a suitable voltage can be effectively generated to increase the stability of memory operation and increase the convenience of use.

Implementation Method

[0008] In the embodiments listed below, the same or similar elements or components will be represented by the same reference numerals.

[0009] Figure 1 is a schematic diagram of a voltage control device according to one embodiment of the present invention. Figure 2 is a detailed schematic diagram of the voltage control device in Figure 1. The voltage control device 100 of this embodiment is suitable for providing the operating voltage required by the memory. Referring to Figures 1 and 2, the voltage control device 100 may include a control unit 110, a processing unit 120, and a feedback sensing unit 130.

[0010] The control unit 110 can generate voltage levels based on the required voltage and feedback signal. In this embodiment, the control unit 110 can be an embedded controller (EC), but the embodiments of the present invention are not limited thereto.

[0011] In some embodiments, the control unit 110 can convert the required voltage into a preset voltage level. Then, the control unit 110 can compare the feedback signal with the preset voltage to generate a comparison signal. Afterwards, the control unit 110 can generate a compensation voltage level based on the comparison signal and a preset value.

[0012] Furthermore, the control unit 110 can confirm whether the comparison signal matches a preset value. When the control unit 110 confirms that the comparison signal matches the preset value, in response to the control unit 110 confirming that the comparison signal matches the preset value, the control unit 110 maintains the output compensation voltage level. When the control unit 110 confirms that the comparison signal does not match the preset value, in response to the control unit 110 confirming that the comparison signal does not match the preset value, the control unit 110 can generate a compensation voltage level.

[0013] Additionally, in some embodiments, when the control unit 110 confirms that the comparison signal does not match a preset value, in response to the control unit 110 confirming that the comparison signal does not match the preset value, the control unit 110 can confirm whether the comparison signal is less than the preset value. When the control unit 110 confirms that the comparison signal is less than the preset value, in response to the control unit 110 confirming that the comparison signal is less than the preset value, the control unit 110 can generate a first voltage level as a compensation voltage level. When the control unit 110 confirms that the comparison signal is not less than the preset value, in response to the control unit 110 confirming that the comparison signal is not less than the preset value, the control unit 110 can generate a second voltage level as a compensation voltage level. In some embodiments, the first voltage level and the second voltage level may be different. Further, the first voltage level may be, for example, a positive compensation voltage level, and the second voltage level may be, for example, a negative compensation voltage level.

[0014] In some embodiments, the compensation voltage hierarchy can be calculated by the following formula (1).

[0015] , (1)

[0016] Wherein, is the compensation voltage level, is the demand voltage, and is the voltage signal. The voltage signal can be derived by the control unit 110 based on the feedback signal. For example, in some embodiments, assuming the demand voltage is 1.35V and the voltage signal is 1.32V, the control unit 110 can calculate the compensation voltage level to be approximately 5.35 (i.e., (1.35V-1.32V) / 5.6mV). Therefore, the control unit 110 can provide a +6 level compensation voltage level.

[0017] In some embodiments, assuming the required voltage is 1.35V and the voltage signal is 1.38V, the control unit 110 can calculate a compensation voltage level of approximately -5.35 (i.e., (1.35V-1.38V) / 5.6mV). Therefore, the control unit 110 can provide a compensation voltage level of -6. The remaining compensation voltage levels are calculated similarly.

[0018] Next, the control unit 110 can perform calculations on the preset voltage level and the compensation voltage level to generate a calculation result. For example, assuming the preset voltage level is 48 levels and the compensation voltage level is +6 levels, the control unit 110 can add the 48-level preset voltage level and the +6-level compensation voltage level to generate a calculation result of 54 levels (i.e., 48 + 6). Alternatively, assuming the preset voltage level is 48 levels and the compensation voltage level is -6 levels, the control unit 110 can add the 48-level preset voltage level and the -6-level compensation voltage level to generate a calculation result of 42 levels (i.e., 48 + (-6)).

[0019] Subsequently, the control unit 110 can generate voltage levels based on the calculation results. For example, when the calculation result is level 54, the control unit 110 can generate a voltage level corresponding to level 54 in response to the calculation result being level 54. In addition, when the calculation result is level 42, the control unit 110 can generate a voltage level corresponding to level 42 in response to the calculation result being level 42.

[0020] In some embodiments, the aforementioned required voltage and preset voltage can be set and stored through the basic input output system (BIOS). That is, the user can set the required voltage and preset voltage through the BIOS and store the required voltage and preset voltage in the control unit 110.

[0021] In some embodiments, the control unit 110 may include a temporary register 210, a conversion unit 220, a conversion unit 230, a comparison unit 240, a compensation unit 250, an arithmetic unit 260, a voltage hierarchy generation unit 270, and a transmission unit 280, as shown in Figure 2.

[0022] The register 210 can store the required voltage and the preset voltage. That is, the user can set the required voltage and the preset voltage through the basic input / output system and store the required voltage and the preset voltage in the register 210 of the control unit 110. The conversion unit 220 can be coupled to the register 210. The conversion unit 220 can receive the required voltage and convert the required voltage into a preset voltage level. In this embodiment, the conversion unit 220 can be a voltage-to-level converter, but the embodiments of the present invention are not limited thereto.

[0023] The conversion unit 230 can be coupled to the feedback sensing unit 130. The conversion unit 230 can receive the feedback signal and convert the feedback signal into a reference signal. In this embodiment, the conversion unit 230 can be an analog-to-digital converter (A / D converter), but the embodiments of the present invention are not limited thereto.

[0024] Comparison unit 240 may be coupled to register 210 and conversion unit 230. Comparison unit 240 may receive a reference signal and a preset voltage, compare the reference signal and the preset voltage to generate a comparison signal. In some embodiments, comparison unit 240 may be a comparator or an operational amplifier, but the embodiments of the present invention are not limited thereto. Compensation unit 250 may be coupled to comparison unit 240. Compensation unit 250 may receive the comparison signal and generate a compensation voltage level based on the comparison signal and a preset value.

[0025] The arithmetic unit 260 can be coupled to the conversion unit 220 and the compensation unit 250. The arithmetic unit 260 can perform operations on the preset voltage level and the compensation voltage level to generate an operation result. In some embodiments, the arithmetic unit 260 can be an adder, but the embodiments of the present invention are not limited thereto. That is, the arithmetic unit 260 can perform addition operations on the preset voltage level and the voltage compensation level to generate an operation result.

[0026] The voltage hierarchy generation unit 270 can be coupled to the arithmetic unit 260. The voltage hierarchy generation unit 270 can receive the arithmetic result and generate a voltage hierarchy based on the arithmetic result. The transmission unit 280 can be coupled to the voltage hierarchy generation unit 270 and the processing unit 120. The transmission unit 280 can receive and transmit the voltage hierarchy, that is, the transmission unit 280 can receive the voltage hierarchy generated by the voltage hierarchy generation unit 270 and transmit this voltage hierarchy to the processing unit 120. In some embodiments, the transmission unit 280 can be an inter-integrated circuit (I2C) bus, but the embodiments of the present invention are not limited thereto.

[0027] The processing unit 120 may be coupled to the control unit 110. The processing unit 120 may receive the voltage levels generated by the control unit 110 and generate a current signal based on the voltage levels. In this embodiment, the processing unit 120 may be a microcontroller (MCU), a microprocessor, or other suitable processor, but the embodiments of the present invention are not limited thereto.

[0028] In some embodiments, the processing unit 120 may include a lookup table, wherein the lookup table has a correspondence between voltage levels and currents, as shown in Table 1. Furthermore, the processing unit 120 may look up the current corresponding to a voltage level according to the lookup table to generate a current signal. In Table 1, the voltage levels are 128, and the current corresponding to each level is 10uA, but the embodiments of the present invention are not limited to this.

[0029] For example, in some embodiments, when the voltage level received by the processing unit 120 is 48 levels, in response to the voltage level received by the processing unit 120 being 48 levels, the processing unit 120 can look up the current corresponding to this 48th voltage level in a lookup table, which is 480uA (i.e., 48*10uA), and the processing unit 120 can use this 480uA as a current signal to generate a current signal with 480uA. In some embodiments, when the voltage level received by the processing unit 120 is 54 levels, in response to the voltage level received by the processing unit 120 being 54 levels, the processing unit 120 can look up the current corresponding to this 54th voltage level in a lookup table, which is 540uA (i.e., 54*10uA), and the processing unit 120 can use this 540uA as a current signal to generate a current signal with 540uA. In some embodiments, when the voltage level received by the processing unit 120 is 42 levels, in response to the voltage level received by the processing unit 120 being 42 levels, the processing unit 120 can look up the current corresponding to this 42-level voltage level in a lookup table, which is 420uA (i.e., 42*10uA). The processing unit 120 can then use this 420uA as a current signal to generate a current signal with 420uA. The methods by which the other processing units 120 generate current signals are analogous. Table 1 social class Bits [7:0] Address Current (uA) social class Bits [7:0] Address Current (uA) 0 10000000 80h 0 64 11000000 C0h 640 1 10000001 81h 10 65 11000001 C1h 650 2 10000010 82h 20 66 11000010 C2h 660 3 10000011 83h 30 67 11000011 C3h 670 4 10000100 84h 40 68 11000100 C4h 680 5 10000101 85h 50 69 11000101 C5h 690 6 10000110 86h 60 70 11000110 C6h 700 7 10000111 87h 70 71 11000111 C7h 710 8 10001000 88h 80 72 11001000 C8h 720 9 10001001 89h 90 73 11001001 C9h 730 10 10001010 8Ah 100 74 11001010 CAh 740 11 10001011 8Bh 110 75 11001011 CBh 750 12 10001100 8Ch 120 76 11001100 CCh 760 13 10001101 8Dh 130 77 11001101 CDh 770 14 10001110 8Eh 1401 78 11001110 CEh 780 15 10001111 8Fh 150 79 11001111 CFh 790 16 10010000 90h 160 80 11010000 D0h 800 17 10010001 91h 170 81 11010001 D1h 810 18 10010010 92h 180 82 11010010 D2h 820 19 10010011 93h 190 83 11010011 D3h 830 20 10010100 94h 200 84 11010100 D4h 840 21 10010101 95h 210 85 11010101 D5h 850 22 10010110 96h 220 86 11010110 D6h 860 23 10010111 97h 230 87 11010111 D7h 870 24 10011000 98h 240 88 11011000 D8h 880 25 10011001 99h 250 89 11011001 D9h 890 26 10011010 9Ah 260 90 11011010 DAh 900 27 10011011 9Bh 270 91 11011011 DBh 910 28 10011100 9Ch 280 92 11011100 DCh 920 29 10011101 9Dh 290 93 11011101 DDh 930 30 10011110 9Eh 300 94 11011110 DEh 940 31 10011111 9Fh 310 95 11011111 DFh 950 32 10100000 A0h 320 96 11100000 E0h 960 33 10100001 A1h 330 97 11100001 E1h 970 34 10100010 A2h 340 98 11100010 E2h 980 35 10100011 A3h 350 99 11100011 E3h 990 36 10100100 A4h 360 100 11100100 E4h 1000 37 10100101 A5h 370 101 11100101 E5h 1010 38 10100110 A6h 380 102 11100110 E6h 1020 39 10100111 A7h 390 103 11100111 E7h 1030 40 10101000 A8h 400 104 11101000 E8h 1040 41 10101001 A9h 410 105 11101001 E9h 1050 42 10101010 AAh 420 106 11101010 EAh 1060 43 10101011 ABh 430 107 11101011 EBh 1070 44 10101100 ACh 440 108 11101100 ECh 1080 45 10101101 ADh 450 109 11101101 EDh 1090 46 10101110 AEh 460 110 11101110 EEh 1100 47 10101111 AFh 470 111 11101111 EFh 1110 48 10110000 B0h 480 112 11110000 F0h 1120 49 10110001 B1h 490 113 11110001 F1h 1130 50 10110010 B2h 500 114 11110010 F2h 1140 51 10110011 B3h 510 115 11110011 F3h 1150 52 10110100 B4h 520 116 11110100 F4h 1160 53 10110101 B5h 530 117 11110101 F5h 1170 54 10110110 B6h 540 118 11110110 F6h 1180 55 10110111 B7h 550 119 11110111 F7h 1190 56 10111000 B8h 560 120 11111000 F8h 1200 57 10111001 B9h 570 121 11111001 F9h 1210 58 10111010 BAh 580 122 11111010 FAh 1220 59 10111011 BBh 590 123 11111011 FBh 1230 60 10111100 BCh 600 124 11111100 FCh 1240 61 10111101 BDh 610 125 11111101 FDh 1250 62 10111110 BEh 620 126 11111110 FEh 1260 63 10111111 BFh 630 127 11111111 FFh 1270

[0030] The feedback sensing unit 130 can receive a voltage signal and generate a feedback signal based on the voltage signal, wherein the voltage signal can be generated in response to a current signal. Furthermore, the voltage signal can be a voltage suitable for supplying the operating voltage required by the memory. In some embodiments, the feedback sensing unit 130 can divide the voltage signal to generate the feedback signal.

[0031] Further, the feedback sensing unit 130 may include a first resistor R11 and a second resistor R12. The first resistor R11 has a first terminal and a second terminal. The first terminal of the first resistor R11 receives a voltage signal. The first terminal of the first resistor R11 is coupled to the control unit 110 and generates a feedback signal. The second resistor R12 has a first terminal and a second terminal. The first terminal of the second resistor R12 is coupled to the second terminal of the first resistor R11. The second terminal of the second resistor R12 is coupled to a ground terminal. In some embodiments, the resistance value of the first resistor R11 is the same as the resistance value of the second resistor, but the embodiments of the present invention are not limited thereto.

[0032] In some embodiments, the voltage control device 100 may further include a conversion unit 140. The conversion unit 140 may be coupled to the processing unit 120 and the feedback sensing unit 130. More specifically, the conversion unit 140 may be coupled to the first terminal of the first resistor R11 of the processing unit 120 and the feedback sensing unit 130. The conversion unit 140 may receive a current signal and convert the current signal into a voltage signal. In some embodiments, the conversion unit 140 may be a power converter or a voltage controller, but the embodiments of the present invention are not limited thereto.

[0033] In some embodiments, the conversion unit 140 may convert the current signal into a voltage signal by the following formula (2).

[0034] , (2)

[0035] wherein, is the voltage signal, is the reference voltage, is the internal resistance of the conversion unit 140, is the current corresponding to each voltage level, is the preset voltage level, and is the compensation voltage level.

[0036] In the overall operation of the voltage control device 100, the user can set the required voltage and the preset voltage through the basic input / output system and store the required voltage and the preset voltage in the control unit 110 (temporary register 210). Assume the required voltage is 1.35V and the preset voltage is, for example, 0.675V. The control unit 110 (conversion unit 220) converts the required voltage (e.g., 1.35V) into a preset voltage level (e.g., 48 levels). At this time, the control unit 110 (conversion unit 230) has not yet received a feedback signal, so the control unit 110 (compensation unit 250) will not generate a compensation voltage level. Next, the control unit 110 (operation unit 260) generates a 48-level calculation result. Afterwards, the control unit 110 (voltage level generation unit 270) generates a voltage level corresponding to the 48 levels and transmits this 48-level voltage level to the processing unit 120.

[0037] Next, the processing unit 120 will look up the current corresponding to the 48 voltage levels in the lookup table, which is 480uA (i.e., 48*10uA), and the processing unit 120 will use this 480uA as a current signal to generate a current signal with 480uA. After that, the conversion unit 140 can generate the corresponding voltage signal (e.g., 1.35V) based on this 480uA current signal and equation (2).

[0038] Next, the feedback sensing unit 130 divides the voltage signal to generate a feedback signal. At this time, because the voltage signal is limited by the circuit board manufacturing process or electrical component error (e.g., 0.03V), the voltage signal is 1.32V (e.g., 1.35V-0.03V), so the feedback sensing unit 130 can generate a 0.66V feedback signal. Then, the control unit 110 (conversion unit 230) converts the feedback signal into a reference signal. Next, the control unit 110 (comparison unit 240) compares the reference signal (feedback signal) with a preset voltage to generate a comparison signal, for example, 0.15V (i.e., 0.675-0.66V). Then, the control unit 110 (compensation unit 250) can confirm whether the comparison signal (e.g., 0.15V) matches a preset value (e.g., 0.02V, approximately 0V). When the control unit 110 (compensation unit 250) confirms that the comparison signal (e.g., 0.15V) does not match the preset value (e.g., 0.02V, approximately 0V), in response to the control unit 110 (compensation unit 250) confirming that the comparison signal (e.g., 0.15V) does not match the preset value (e.g., 0.02V, approximately 0V), the control unit 110 (compensation unit 250) can confirm whether the comparison signal (e.g., 0.15V) is less than the preset value (e.g., 0.02V, approximately 0V).

[0039] When the control unit 110 (compensation unit 250) confirms that the comparison signal (e.g., 0.15V) is not less than the preset value (e.g., 0.02V, approximately 0V), in response to the control unit 110 (compensation unit 250) confirming that the comparison signal (e.g., 0.15V) is not less than the preset value (e.g., 0.02V, approximately 0V), the control unit 110 (compensation unit 250) can generate, for example, a second voltage level of +6 as a compensation voltage level through equation (1), i.e., the compensation voltage level is +6. Next, the control unit 110 (operation unit 260) can perform an addition operation between the preset voltage level of 48 and the compensation voltage level of +6 to generate an operation result of 54 (i.e., 48+6). Afterwards, the control unit 110 (voltage level generation unit 270) can generate a voltage level corresponding to 54 levels and transmit this 54-level voltage level to the processing unit 120.

[0040] Next, the processing unit 120 will look up the current corresponding to the 54 voltage levels in the lookup table, which is 540uA (i.e., 54*10uA). The processing unit 120 can use this 540uA as a current signal to generate a current signal with 540uA. After that, the conversion unit 140 can generate the corresponding voltage signal (e.g., 1.38V) based on this 540uA current signal and equation (2).

[0041] Next, the feedback sensing unit 130 divides the voltage signal to generate a feedback signal. At this time, because the voltage signal is limited by the circuit board manufacturing process or electrical component error (e.g., 0.03V), the voltage signal is 1.35V (e.g., 1.38V-0.03V), so the feedback sensing unit 130 can generate a feedback signal of 0.675V. Then, the control unit 110 (conversion unit 230) converts the feedback signal into a reference signal. Next, the control unit 110 (comparison unit 240) compares the reference signal (feedback signal) with a preset voltage to generate a comparison signal, for example, 0V (i.e., 0.675-0.75V). Then, the control unit 110 (compensation unit 250) can confirm whether the comparison signal (e.g., 0V) matches a preset value (e.g., 0.02V, approximately 0V). When the control unit 110 (compensation unit 250) confirms that the comparison signal (e.g., 0V) matches the preset value (e.g., 0.02V, approximately 0V), in response to the control unit 110 (compensation unit 250) confirming that the comparison signal (e.g., 0V) matches the preset value (e.g., 0.02V, approximately 0V), the control unit 110 (compensation unit 250) can maintain an output of +6 levels of compensation voltage, so that the control unit 110 continuously outputs 54 levels of voltage, so that the conversion unit 140 can continuously provide an accurate voltage signal to the memory, thereby increasing the stability of the memory.

[0042] Figure 3 is a waveform diagram of a voltage signal, the operating voltage provided to the memory inside the central processing unit, and the operating voltage provided by the internal voltage source module of the memory according to one embodiment of the present invention. In Figure 3, S11 is a voltage signal (suitable for providing the operating voltage required by the memory), S12 is the operating voltage provided to the memory inside the central processing unit, and S13 is the operating voltage provided by the internal voltage source module of the memory. As can be seen from Figure 3, through the voltage control device 100 of this embodiment, the voltage signal S11 can be adjusted from 1.1V to 1.35V to provide an accurate voltage signal S11 (e.g., 1.35V) to the memory, thereby increasing the stability of the memory.

[0043] Figure 4 is a flowchart of an operation method of a voltage control device according to an embodiment of the present invention. In step S402, a voltage level is generated by the control unit based on the required voltage and a feedback signal. In step S404, the voltage level is received by the processing unit, and a current signal is generated based on the voltage level. In step S406, the voltage signal is received by the feedback sensing unit, and a feedback signal is generated based on the voltage signal, wherein the voltage signal is generated in response to the current signal. In step S408, the current signal is converted into a voltage signal by a voltage converter.

[0044] In some embodiments, the processing unit may include a lookup table, wherein the lookup table has a correspondence between voltage levels and currents. Additionally, in some embodiments, step S404 may include the processing unit looking up the current corresponding to the voltage level according to the lookup table to generate a current signal. Furthermore, step S406 may include receiving the voltage signal through a feedback sensing unit and dividing the voltage signal to generate a feedback signal.

[0045] Figure 5 is a detailed flowchart of step S402 in Figure 4. In step S502, the required voltage is converted into a preset voltage level. In step S504, the feedback signal and the preset voltage are compared to generate a comparison signal. In step S506, a compensation voltage level is generated based on the comparison signal and the preset value. In step S508, the preset voltage level and the compensation voltage level are calculated to generate a calculation result. In step S510, a voltage level is generated based on the calculation result. In some embodiments, the required voltage and the preset voltage are set and stored, for example, through a basic input / output system.

[0046] Figure 6 is a detailed flowchart of step S506 in Figure 5. In step S602, it is confirmed whether the comparison signal matches the preset value. When it is confirmed that the comparison signal matches the preset value, the process proceeds to step S604, and in response to the confirmation that the comparison signal matches the preset value, the output compensation voltage level is maintained. When it is confirmed that the comparison signal does not match the preset value, the process proceeds to step S606, and in response to the confirmation that the comparison signal does not match the preset value, a compensation voltage level is generated.

[0047] Figure 7 is a detailed flowchart of step S606 in Figure 6. In step S702, in response to the confirmation that the comparison signal does not match the preset value, it is confirmed whether the comparison signal is less than the preset value. When the comparison signal is confirmed to be less than the preset value, the process proceeds to step S704, where a first voltage level is generated as a compensation voltage level in response to the confirmation that the comparison signal is less than the preset value. When the comparison signal is confirmed to be not less than the preset value, the process proceeds to step S706, where a second voltage level is generated as a compensation voltage level in response to the confirmation that the comparison signal is not less than the preset value.

[0048] It is worth noting that the order of the steps in Figures 4, 5, 6, and 7 is for illustrative purposes only and is not intended to limit the order of steps in the embodiments of the present invention. Furthermore, the order of the steps can be changed by the user according to their needs. Moreover, without departing from the spirit and scope of the present invention, the above flowcharts may include additional steps or use fewer steps.

[0049] In summary, the voltage control device and its operating method disclosed in the embodiments of the present invention generate a voltage hierarchy through a control unit based on the required voltage and a feedback signal, a processing unit generates a current signal based on the voltage hierarchy, and a feedback sensing unit generates a feedback signal based on the voltage signal, wherein the voltage signal is generated in response to the current signal. In this way, a suitable voltage can be effectively generated to increase the stability of memory operation and increase the convenience of use.

[0050] Although the present invention has been disclosed above by way of embodiments, it is not intended to limit the scope of the present invention. Anyone skilled in the art can make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims. [Simplified Explanation of the Diagram]

[0051] Figure 1 is a schematic diagram of a voltage control device according to an embodiment of the present invention. Figure 2 is a detailed schematic diagram of the voltage control device in Figure 1. Figure 3 is a waveform diagram of a voltage signal, an operating voltage provided to the memory inside the central processing unit, and an operating voltage provided by the internal voltage source module of the memory according to an embodiment of the present invention. Figure 4 is a flowchart of an operation method of the voltage control device according to an embodiment of the present invention. Figure 5 is a detailed flowchart of step S402 in Figure 4. Figure 6 is a detailed flowchart of step S506 in Figure 5. Figure 7 is a detailed flowchart of step S606 in Figure 6.

Claims

1. A voltage control device, comprising: A control unit generates a voltage hierarchy based on a required voltage and a feedback signal; A processing unit receives the voltage level and generates a current signal based on the voltage level; and a feedback sensing unit receives a voltage signal and generates a feedback signal based on the voltage signal, wherein the voltage signal is generated in response to the current signal.

2. The voltage control device as claimed in claim 1, wherein the control unit converts the required voltage into a preset voltage level, compares the feedback signal with a preset voltage to generate a comparison signal, generates a compensation voltage level based on the comparison signal and a preset value, performs calculations on the preset voltage level and the compensation voltage level to generate a calculation result, and generates the voltage level based on the calculation result.

3. The voltage control device as claimed in claim 2, wherein the control unit confirms whether the comparison signal matches the preset value, and in response to the control unit confirming that the comparison signal matches the preset value, the control unit maintains the output of the compensation voltage level, and in response to the control unit confirming that the comparison signal does not match the preset value, the control unit generates the compensation voltage level.

4. The voltage control device as claimed in claim 3, wherein in response to the control unit confirming that the comparison signal does not match the preset value, the control unit confirms whether the comparison signal is less than the preset value; in response to the control unit confirming that the comparison signal is less than the preset value, the control unit generates a first voltage level as the compensation voltage level; in response to the control unit confirming that the comparison signal is not less than the preset value, the control unit generates a second voltage level as the compensation voltage level.

5. The voltage control device as described in claim 2, wherein the required voltage and the preset voltage are set and stored through a basic input / output system.

6. The voltage control device as claimed in claim 1, wherein the control unit comprises: A register stores the required voltage and a preset voltage; a first conversion unit receives the required voltage and converts it into a preset voltage level; a second conversion unit receives the feedback signal and converts it into a reference signal; a comparison unit receives the reference signal and the preset voltage, compares the reference signal and the preset voltage to generate a comparison signal; a compensation unit receives the comparison signal and generates a compensated voltage level based on the comparison signal and a preset value; a calculation unit performs calculations on the preset voltage level and the compensated voltage level to generate a calculation result; a voltage level generation unit receives the calculation result and generates the voltage level based on the calculation result; and a transmission unit receives and transmits the voltage level.

7. The voltage control device as claimed in claim 1, wherein the processing unit includes a lookup table having a correspondence between the voltage level and a current.

8. The voltage control device as claimed in claim 7, wherein the processing unit looks up the current corresponding to the voltage level according to the lookup table to generate the current signal.

9. The voltage control device as claimed in claim 1, wherein the feedback sensing unit divides the voltage signal to generate the feedback signal.

10. The voltage control device as claimed in claim 9, wherein the feedback sensing unit comprises: A first resistor having a first terminal and a second terminal, the first terminal of the first resistor receiving the voltage signal, the first terminal of the first resistor being coupled to the control unit and generating the feedback signal; and a second resistor having a first terminal and a second terminal, the first terminal of the second resistor being coupled to the second terminal of the first resistor, the second terminal of the second resistor being coupled to a ground terminal.

11. The voltage control device as described in claim 1, further comprising: A conversion unit converts the current signal into the voltage signal.

12. A method for operating a voltage control device, comprising: A voltage hierarchy is generated by a control unit based on a required voltage and a feedback signal. A processing unit receives the voltage level and generates a current signal based on the voltage level; and a feedback sensing unit receives a voltage signal and generates a feedback signal based on the voltage signal, wherein the voltage signal is generated in response to the current signal.

13. A method of operating the voltage control device as described in claim 12, wherein the step of generating the voltage level by means of the control unit based on the demand voltage and the feedback signal includes: Convert the required voltage into a preset voltage level; The feedback signal is compared with a preset voltage to generate a comparison signal; A compensation voltage level is generated based on the comparison signal and a preset value; the preset voltage level and the compensation voltage level are calculated to generate a calculation result; and the voltage level is generated based on the calculation result.

14. The method of operating the voltage control device as described in claim 13, wherein the step of generating the compensation voltage level based on the comparison signal and the preset value includes: Confirm whether the comparison signal matches the preset value; In response to confirming that the comparison signal matches the preset value, maintain the output of the compensation voltage level; In response to the confirmation that the comparison signal does not match the preset value, the compensation voltage level is generated.

15. A method of operating the voltage control device as described in claim 14, wherein the step of generating the compensation voltage level in response to confirming that the comparison signal does not match the preset value includes: In response to the confirmation that the comparison signal does not match the preset value, it is confirmed whether the comparison signal is less than the preset value; In response to confirming that the comparison signal is less than the preset value, a first voltage level is generated as the compensation voltage level; and in response to confirming that the comparison signal is not less than the preset value, a second voltage level is generated as the compensation voltage level.

16. The method of operating the voltage control device as described in claim 13, wherein the required voltage and the preset voltage are set and stored through a basic input / output system.

17. The method of operating the voltage control device as claimed in claim 12, wherein the processing unit includes a lookup table having a correspondence between the voltage level and a current.

18. A method of operating the voltage control device as claimed in claim 17, wherein the step of receiving the voltage level through the processing unit and generating the current signal based on the voltage level includes: The processing unit looks up the current corresponding to the voltage level in the lookup table to generate the current signal.

19. A method of operating the voltage control device as claimed in claim 12, wherein the steps of receiving the voltage signal through the feedback sensing unit and generating the feedback signal based on the voltage signal include: The feedback sensing unit receives the voltage signal and divides the voltage signal to generate the feedback signal.

20. The method of operating the voltage control device as described in claim 12 further includes: The current signal is converted into a voltage signal through a voltage converter.

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