TWI329822B - System and method for designing a voltage debugging module - Google Patents

Description

1329822 _June 02, 2008, the following is a replacement page. 6. Description of the Invention: [Technical Field] The present invention relates to a power supply design system and method, and more particularly to a voltage adaptation module design system and method. [Prior Art] [0002] Due to the increasing power consumption of today's products, power supply design is also important, especially for the reliability design of power supplies. Therefore, when designing the power supply, not only the parameter design of the power supply itself, but also the electrical design, electromagnetic compatibility design, thermal design, safety design, and basic failure rate of electronic components should be considered. [0003] The basic failure rate of an electronic component depends on the working stress, such as electricity, temperature, vibration, shock, frequency, speed, collision, and the like. Except for some components with low stress failure, others exhibit higher working stress and higher failure rate. In order to reduce the component's failure rate, the circuit design is derated to optimize performance when power consumption is minimized. The degree of derating, in addition to considering reliability, also needs to consider factors such as volume, weight, and cost. Different component derating standards are also different. From the actual situation, the basic failure rate of the large 4 parts of electronic components depends on the electrical stress and temperature, so the derating is mainly to control these two stresses. [0004] The traditional power supply design requires the designer to design with his own experience, for example, to determine the type and number of components by his own experience, to estimate various working stresses such as voltage, current and power on the component, and then to find the component derating table. Determining the stress derating factor has no concept of automation and process design. As a result, one of the stages may be missed due to the designer's negligence, resulting in a design error. 096136362 Form No. A0101 Page 4 of 24 0993196288-0 1329822 [0005] [0006]

096136362 June 2, 2008, the nuclear replacement page [invention] In view of the above, it is necessary to provide a voltage adaptation module design system and method, integrated component selection estimation table, component and system power consumption calculation table and component derating Tables are used to simplify and speed up the power supply design process and reduce errors such as improper selection of parts. A voltage adaptation module design system for adapting a voltage of a power component during power supply design, the system comprising a receiving module, a computing module and an inspection module. The receiving module is configured to receive design parameters input by a user and component parameters required for power supply design, and store the design parameters and component parameters in a component selection estimation table, where the component parameters include a rated stress of the component . The computing module calculates the total power consumption and efficiency of the designed power supply according to the above design parameters and component parameters, and stores the total power consumption and efficiency of the designed power supply in a component and system power consumption calculation table, the component and system An expected efficiency is pre-stored in the power consumption calculation table. The verification module is configured to verify whether the calculated efficiency is higher than the expected efficiency or equal to the expected efficiency. If the calculated efficiency is lower than expected, the receiving module re-receives component selection or component parameter selection according to power consumption of each component described in the component and system power consumption calculation table, if the calculated efficiency ratio If the expected efficiency is high or equal to the expected efficiency, the calculation module is further configured to derate each component according to the rated stress of each component, calculate the working stress and stress ratio of each component, and calculate the calculated working stress. The stress ratio is stored in a component derating table in which a derating specification is pre-stored, wherein the stress ratio is equal to the working stress of the component divided by the rated stress of the component. The inspection module is further configured to verify whether the derating of the component conforms to the derating specification according to the stress ratio. The storage module form number Α0101 5th page/total 24 page 0993196288-0 1329822 _ The clock replacement page of June 2, 099 is used to store the above component selection estimation table when the component derating meets the derating specification, Component and system power consumption calculation table and component derating table. The computing module is further configured to recalculate the total power consumption and efficiency of the designed power supply when the component derating does not meet the derating specification. ·

[0007] A method for designing a voltage adaptation module, comprising the steps of: receiving a design parameter input by a user and a component parameter required for a power supply design, and storing the design parameter and the component parameter in a component selection estimation table, The component parameters include the rated stress of the component; calculating the total power consumption and efficiency of the designed power supply; storing the total power consumption and efficiency in a component and system power consumption calculation table, the component and system power consumption calculation table are pre- Storing an expected efficiency; verifying whether the calculated efficiency is higher than or equal to the expected efficiency; if the calculated efficiency is lower than expected, returning to the design parameters required for receiving user input and power supply design The step of component parameters; if the calculated efficiency is higher than the expected efficiency or equal to the expected efficiency, the component is derated according to the rated stress of each component; the stress ratio of each component is calculated, and the calculated stress ratio is stored In a component derating table ten, a derating specification is pre-stored in the component derating table, wherein The stress ratio is equal to the working stress of the component divided by the rated stress of the component; whether the derating of the component conforms to the derating specification according to the stress ratio; and storing the component selection estimate if the component derating meets the derating specification The table, component and system power consumption calculation table and component derating table, or if the component derating does not comply with the derating specification, returning to the step of calculating the total power consumption and efficiency of the designed power supply. [0008] Compared with the prior art, the voltage adaptation module design system and method 096136362 Form No. A0101 Page 6 / Total 24 Page 0993196288-0 1329822 - . Correction replacement page ' on June 2, 099 ', integration A component selection estimation table, a component and system power consumption calculation table, and a component derating table are provided to adjust the voltage of the power supply component to simplify and accelerate the power supply design process, reduce errors such as improper selection of parts, and complete the problem quickly and efficiently. Calculation of critical power component design. EMBODIMENT [0009] As shown in FIG. 1, it is a hardware architecture diagram of a preferred embodiment of the voltage adaptation module design system of the present invention. The voltage adaptation module design system 10 is implemented in a computer 1 and includes a receiving module 100, a computing module 102, a color display module 104, a verification module 106, and a storage module 108. A document 12 is stored in the computer 1 ® and includes a component selection estimation table 120 (hereinafter referred to as "table 120"), a component and system power consumption calculation table 122 (hereinafter referred to as "table 122"), and a component derating. Table 124 (hereinafter referred to as "Table 124"). In addition, the computer 1 is connected to a display 2, which provides a user operation interface for displaying the table 120, the table 122 and the table 124. [0010] In this embodiment, the computer 1 includes at least one central processing unit, The computer φ 1 can read the storage device and other peripheral devices that have its functions, such as keyboards and mouse input devices, and record or transfer information with electronic signals having specific physical quantities. The receiving module 100, the computing module 102, the color display module 104, the verification module 106, and the storage module 108 are all stored in the computer 1 readable storage device, and are read by the central processing unit. After that, the function can be realized through the operation of the related hardware and the transmission of the electronic signal. For example, the user 3 displays the calculated component power consumption in the table 122 through the execution of the voltage adaptation module design system 10 and is shown in Table 124. Derating processing result of display component 096136362 Form No. A0101 Page 7 / Total 24 Page 0993196288-0 1329822

G99 year 〇 June 02 shuttle is replacing page I

[0011] In the present embodiment, the document 12 may be an Excel table, which may be stored on any recording medium readable by the computer 1, such as a hard disk, a compact disk or a magnetic disk. Table 120, Table 122, and Table 124 may each be stored in a separate document, or may be stored in the document 12 in the form of a table, as shown in FIG. 2, which is a table 120, a table 122, and a table of the present invention. 124 signal flow diagrams.

[0012] In this embodiment, a voltage-switching DC power converter is taken as an example to describe voltage adjustment during power supply design. The circuit diagram of the switched DC power converter is shown in Figure 3. The main components include a pulse width modulation controller 2〇, a high-end metal-oxide semiconductor field effect transistor (Metai-Qxide _ Semiconductor Field Effect Transist〇r, Hereinafter referred to as MOSFET 22, low-side MOSFET 24, turn-in capacitor 26, output inductor 28, and output capacitor 30. The 'pulse width modulation controller 2' can be used to monitor the output voltage of the switched DC power converter, and control the high-side MOSFET 22 and the low-side MOSFET 24 to be energized or disconnected to achieve the purpose of adjusting the voltage, and calculate the switching type. The efficiency of the DC power converter determines whether the input voltage and output voltage of the switched DC power converter meet the needs of the user 3. [0013] In the program module in the readable storage device of the computer 1, the receiving module 1 is configured to receive design parameters input by the user 3 through the mouse or the keyboard and corresponding components of the components shown in FIG. Parameters and store them in Table 12〇. The parameters corresponding to the components include the parameters corresponding to the human end component and the output corresponding to the output component. As shown in Fig. 4, it is a partial schematic diagram of the actual _ table 12〇. The contents described in the table 120 mainly include the input voltage value, 096136362 u W %i, the output current value form number A0101, page 8 / total 24 pages 0993196288-0 1329822 099, June 2, according to the replacement page specifications, components Number and other corresponding parameters. [0014] wherein, the component type refers to various types of components shown in FIG. 3, such as the input capacitor 26, the output inductor 28, and the output capacitor 30. The component parameters refer to voltage values, current values, rated stresses, and their respective values that can be passed by the components shown in Fig. 3. The values corresponding to the self are corresponding to the capacitance of the capacitor and the inductance of the inductor. The component specifications include the rated voltage values (not shown in FIG. 4) of each component shown in FIG. 3, the rated current value (not shown in FIG. 4), the maximum temperature value that can be withstand (not shown in FIG. 4), and the input capacitance. The minimum capacitance of 26 and the minimum capacitance of the output capacitor 30, and the like. In addition, the table 120 described in this embodiment can also be used to describe the parameters corresponding to the high-end MOSFET 22 and the low-side MOSFET 24 [0015] The calculation module 102 is used to calculate the input power, output power, and power consumption of each component shown in FIG. Calculate the input power, output power, total power consumption and efficiency of the switched DC power converter, and input the power consumption of each component, the total power consumption and efficiency of the switched DC power converter into Table 122, as shown in the figure. 5 is a partial schematic view of the table 122 in which an expected efficiency is pre-stored, which can be specified by the user himself. In general, User 3 will use the efficiency of the switched DC power converter to evaluate its power consumption, which is output power / input power, and total power consumption = input power - output power, that is, efficiency = ( Input power - total power consumption) / input power * 100%, that is, the higher the total power consumption, the lower the efficiency of the switched DC power converter. [0016] The verification module 106 is configured to verify whether the calculated efficiency is higher than the expected efficiency or equal to the expected efficiency to determine whether the power consumption of the switched DC power converter meets the requirements of the user 3. 096136362 Form No. A0101 Page 9 / Total 24 Page 0993196288-0 1329822 On June 2, 2009, the shuttle is replacing the page [0017] A derating specification is pre-stored in Table 124, which can be used by the user 3 himself. Provisions. Problems such as component aging or process technology variations can cause the component to be insufficient to withstand its rated voltage, so there is a need for derating. The calculation module 102 calculates the voltage value, current value or temperature value that the component can withstand according to the derating specification in Table 124 and the rating of the component. For example, if the derating specification is 80%, the component is rated at 100 volts. The voltage of the J component is 100 volts/80% = 125 volts, which means that the user 3 needs to select components with a rated voltage greater than 125 volts. The calculation module 102 derates the components according to the rated stress of the components, and calculates the working stress of the components and the stress ratio of the components based on the voltage, current, or temperature values of the components. Among them, the stress ratio = working stress / rated stress, the higher the stress ratio, the greater the efficiency of the component. Table 124 is used to describe the stress state, component description, component specification, working stress, rated stress and stress ratio of the selected component. As shown in FIG. 6, it is a partial schematic view of the table 124 of the present embodiment, and the schematic diagram depicts the FIG. A derating table for the output inductor 28 is described. [0018] The verification module 106 is further configured to compare the calculated stress ratio by 100% and compare with a pre-stored derating specification in Table 124 to determine whether the component derating meets the derating specification. [0019] The color display module 104 displays the content input by the user 3 in the table 120, the table 122, and the table 124, the content calculated by the calculation module 102, and the component specifications by using different colors. For example, the color display module 104 is yellow. Displaying the input voltage, output voltage, and switching frequency input by the user 3; displaying the power consumption, total power consumption, and efficiency of the component calculated by the computing module 102 in orange; displaying the minimum capacitance and output of the input capacitor in pink The minimum capacitance of the capacitor. In addition, if some component parameters or component specifications in Table 120 096136362 Form No. A0101 Page 10 of 24 0993196288-0 1329822

When the correction replacement page I appears in Table 122 and Table 124 at the same time on June 2, 099, the color display module 104 displays these component parameters and component specifications in blue in Table 122 and Table 124 as in Table 122. Input voltage value, output voltage value, output current value, and switching frequency. [0020] The storage module 1 is used to store the contents of the table 122 and the table 124, and the content includes the design parameters input by the user 3, the parameters corresponding to the components, and the calculation module 102. The calculated component power consumption 'total power consumption, efficiency, component stress and stress ratio. [0021] wherein the forms of Table 12, Table 122, and Table 124 described in this embodiment are not limited to the format shown in FIG. 4, FIG. 5, and FIG. 6 'the color displayed by the color display module 104 of the present embodiment. It is not limited to the above-mentioned several colors, and can be determined according to the preferences of the user 3. Further, the contents shown in Figs. 4' and 5 and 6 do not show the colors that the color display module 104 can display. [0022] As shown in FIG. 7, it is a flowchart of a preferred embodiment of the voltage adaptation module design method of the present invention. [0023] In step S1, the receiving module 1 receives the component and component parameters selected by the user 3 and inputs the design parameters input by the user 3 through the mouse or the keyboard and the parameters corresponding to the selected component. Go to Table 120. [0024] In step S200, the computing module 1〇2 calculates the power consumption of each component, calculates the total power consumption and efficiency of the switched DC power converter shown in FIG. 3, and calculates the power consumption of each component and the switched DC. The total power consumption and efficiency of the power converter is input to Table 122, as shown in Figure 5, which is a partial schematic view of the table 122. An expected efficiency is pre-stored in the table 122. [0025] In step S300, the inspection module 1〇6 checks whether the calculated efficiency is greater than! Form No. A0101 Page 11/24 pages 0993196288-0 1329822 Correction of the replacement page stated on June 02, 2008 The efficiency is high or equal to the expected efficiency to determine whether the total power consumption of the switched DC power converter meets the needs of the user 3. Among them, the efficiency of the switched DC power converter = (input power - total power consumption) / input power * 10 0%. [0026] If the calculated efficiency is lower than the expected efficiency, returning to step S100 to re-receive component selection or component parameter selection according to the power consumption of each component described in Table 122; conversely, if the calculated efficiency is greater than expected efficiency If the height is equal to the expected efficiency, then in step S400, the calculation module 102 derates the component according to the rated stress of the component, calculates the working stress and stress ratio of the component according to the voltage value and the current value of the component, and calculates the calculated The working stress and stress ratios are stored in the table 124, where stress ratio = working stress / rated stress. [0027] In step S500, the verification module 106 checks whether the component derating meets the derating specification. For example, if the derating specification required by the user is 80%, and the calculated stress ratio calculated by the computing module 102 is greater than 0. 8. The verification module 106 determines that the component derating does not meet the derating specification, and the process returns to step S200 to recalculate the efficiency of the switched DC power converter to determine whether the total power consumption of the switched DC power converter satisfies the user 3 Demand. [0028] If the verification module 106 verifies that the component derating meets the derating specification, if the stress ratio is less than or equal to 0.8, the storage module 108 stores the contents of the tables 120, 122, and 124 in step S600. The content includes the content input by the user 3 (such as parameters corresponding to the component) and the content calculated by the computing module 102 (such as total power consumption, efficiency, working stress and stress ratio of each component). [0029] The above description is only the preferred embodiment of the present invention, and has reached a wide range of 096136362 Form No. A0101 Page 12 / Total 24 Page 0993196288-0 1329822 099 June 2, the correct replacement page use efficiency, where Other variations or modifications that are not to be made in the spirit of the present invention are included in the scope of the following claims. [FIG. 1] FIG. 1 is a preferred embodiment of the voltage adapting module design system of the present invention. A hardware architecture diagram of an embodiment. 2 is a signal flow diagram between the component selection estimation table, the component and system power consumption calculation table, and the component derating table of the present invention.

[0032] FIG. 3 is a circuit diagram of a switched DC power converter. 4 is a partial schematic view of a component selection estimation table of the present invention. 5 is a partial schematic view of the component and system power consumption calculation table of the present invention. [0035] FIG. 6 is a partial schematic view of the component derating table of the present invention. 7 is a flow chart of a preferred embodiment of a voltage adaptation module design method of the present invention.

[Main Component Symbol Description] [0037] Computer 1 [0038] Display 2 [0039] User 3 [0040] Voltage Adaptation Module Design System 10 [0041] Document 12 [0042] Receive Module 100 096136362 Form No. A0101 No. 13 Page / Total 24 Pages 0993196288-0 1329822 099 June 2, press the replacement page [0043] Calculation Module 102 [0044] Color Display Module 104 [0045] Inspection Module 106 [0046] Storage Module 108 [0047] Component Selection Estimation Table 120 [0048] Component and System Power Consumption Calculation Table 122 [0049] Component Derating Table 124

096136362 Form No. A0101 Page 14 of 24 0993196288-0

Claims (1)

1329822 VII. Patent Application Scope: Revised in June 2002 0 0 • A voltage adaptation module design system for adapting the voltage of the power supply component during power supply design. The system includes: a receiving mode for receiving users Entering design parameters and component parameters required for power supply design, and storing the design parameters and component parameters in a component selection estimation table, the component parameters including the rated stress of the components; The calculation module calculates the total power consumption and efficiency of the designed power supply according to the above design parameters and component parameters, and stores the total power consumption and efficiency of the designed power supply in a component and system power consumption calculation table, the component and system power An expected efficiency is pre-stored in the consumption calculation table; and an inspection module is configured to check whether the calculated efficiency is 13⁄4 or higher than the expected efficiency; If the calculated efficiency is lower than expected, the receiving module re-receives component selection or component parameter selection according to power consumption of each component described in the component and system power consumption calculation table, if the calculated efficiency ratio If the expected efficiency is high or equal to the expected efficiency, the calculation module is further configured to derate each component according to the rated stress of each component, calculate the working stress and stress ratio of each component, and calculate the calculated working stress. And the stress ratio is stored in a component derating table. The derating schedule is pre-stored in the component derating table, wherein the stress ratio is equal to the working stress of the component divided by the rated stress of the component; the inspection module, And a method for verifying that the component derating β is in accordance with the derating specification according to the stress ratio; and a storage module, configured to store the component selection estimation table, the component and the system power consumption when the component derating meets the derating specification Calculation table and component drop 1 096136362 Form number Α 0101 Page 15 / Total 24 page 0993196288-0 1329822 099 June 2, nuclear replacement page table; The computing module is further configured to recalculate the total power consumption and efficiency of the designed power supply when the component derating does not meet the derating specification. 2. The voltage adaptation module design system of claim 1, wherein the calculation module is further configured to calculate power consumption of each component, and store power consumption of each component in the component and system. The power consumption calculation table is used to find the power consumption of the components when the efficiency of the designed power supply is lower than expected. 3. The voltage adaptation module design system described in claim 2, The system also includes a color display module that displays component parameters, power consumption of the components, total power consumption and efficiency of the designed power supply, working stress and stress ratio of the components, and component selection estimation tables, components and components, using different colors. The design parameters that appear in the system power consumption calculation table and the component derating table. 4. A voltage adaptation module design method for adapting a voltage of a power supply component during power supply design, the method comprising: Receiving design parameters input by the user and component parameters required for power supply design, and storing the design parameters and component parameters in a component selection estimation table, the component parameters including the rated stress of the components; calculating the total power of the designed power supply Power consumption and efficiency; storing the total power consumption and efficiency in a component and system power consumption calculation table, the component and system power consumption calculation table pre-stored an expected efficiency; verifying whether the calculated efficiency is higher than the Expected efficiency is high or equal to expected efficiency; if the calculated efficiency is lower than expected, return to receive user input 096136362 Form No. A0101 Page 16 / Total 24 Page 0993196288-0 1329822 099 June 2 Nuclear Replacement Page The design parameters and the steps of the component parameters required for the power supply design; if the calculated efficiency is higher than the expected efficiency or equal to the expected efficiency, the components are derated according to the rated stress of each component; the stress ratio of each component is calculated, And the calculated stress ratio is stored in a component derating table, the component derating table Storing a first derating specification, wherein the ratio of the stress element is equal to the rated work stress divided by the stress element; Determining whether the derating of the component conforms to the derating specification according to the stress ratio; and storing the component selection estimation table, the component and system power consumption calculation table, and the component derating table if the component derating meets the derating specification, Or if the component derating does not meet the derating specification, returning to the step of calculating the total power consumption and efficiency of the designed power supply. The voltage adaptation module design method according to claim 4, wherein the step of calculating a stress ratio of each component and storing the calculated stress ratio in the component derating table comprises the following steps: Working stress of each component, and storing the calculated working stress in the component derating table; Calculate the stress ratio of each component based on the working stress and the rated stress of the component. 096136362 Form No. A0101 Page 17 of 24 0993196288-0