Chip power supply detection and analysis system

Abstract

The invention discloses a chip power supply detection and analysis system, which comprises seven groups of power supply detection and analysis units, and each group of power supply detection and analysis unit corresponds to one path of power supply of a chip; each group of power supply detection and analysis units is connected with the PC terminal through a USB bus, receives related instructions issued by the PC terminal and uploads corresponding detection data; the power supply voltage output range of the five groups of power supply detection and analysis units is 0-5V, and the maximum output current is 4A; and the power supply voltage output range of the other two groups of power supply detection and analysis units is 0-10V, and the maximum output current is 2A. The system can realize various detection and adjustment under various working modes of the chip, including chip power supply, voltage value adjustment, working current (average current) detection, transient current detection, voltage detection, data processing and analysis and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of power supply detection, and in particular to a chip power supply detection and analysis system. Background Art

[0002] At present, conventional chip power supply detection equipment cannot fully and accurately detect and analyze the chip power supply part. For example, the power supply voltage cannot be adjusted dynamically or can be adjusted dynamically but with large steps. Current detection only detects the working current (average current) without dynamic adjustment and analysis functions. Summary of the invention

[0003] The purpose of the present invention is to provide a chip power supply detection and analysis system, which can realize various detections and adjustments in various working modes of the chip, including chip power supply, voltage value adjustment, working current (average current) detection, transient current detection, voltage detection, data processing and analysis, etc.

[0004] The objective of the present invention is achieved through the following technical solutions:

[0005] A chip power detection and analysis system, the system comprising seven groups of power detection and analysis units, each group of power detection and analysis units corresponding to one power supply of the chip;

[0006] Each power supply detection and analysis unit is connected to the PC via a USB bus, receives relevant instructions from the PC, and uploads corresponding detection data;

[0007] Among them, the power supply voltage output range of five groups of power supply detection and analysis units is 0-5V, and the maximum output current is 4A; the power supply voltage output range of the other two groups of power supply detection and analysis units is 0-10V, and the maximum output current is 2A.

[0008] It can be seen from the technical solution provided by the present invention that the above system can realize various detections and adjustments in various working modes of the chip, including chip power supply, voltage value adjustment, working current (average current) detection, transient current detection, voltage detection, data processing and analysis, etc., to improve the chip power supply monitoring and analysis efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0010] Figure 1A schematic diagram of the structure of a chip power supply detection and analysis system provided by an embodiment of the present invention;

[0011] Figure 2 It is a schematic diagram of the structure of the power detection and analysis unit described in an embodiment of the present invention. DETAILED DESCRIPTION

[0012] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments, which does not constitute a limitation of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0013] First, the terms that may be used in this article are explained as follows:

[0014] The term “and / or” means that either or both of them can be realized at the same time. For example, X and / or Y means both “X” or “Y” and “X and Y”.

[0015] The terms "include", "comprises", "contains", "has" or other descriptions with similar semantics should be interpreted as non-exclusive inclusion. For example, including certain technical feature elements (such as raw materials, components, ingredients, carriers, dosage forms, materials, dimensions, parts, components, mechanisms, devices, steps, procedures, methods, reaction conditions, processing conditions, parameters, algorithms, signals, data, products or products, etc.) should be interpreted as including not only certain technical feature elements explicitly listed, but also other technical feature elements known in the art that are not explicitly listed.

[0016] like Figure 1 FIG. 1 is a schematic diagram of the structure of a chip power supply detection and analysis system provided by an embodiment of the present invention, wherein the system includes seven groups of power supply detection and analysis units, each group of power supply detection and analysis units corresponding to one power supply of the chip;

[0017] Each power supply detection and analysis unit is connected to the PC via a USB bus, receives relevant instructions from the PC, and uploads corresponding detection data;

[0018] Among them, the power supply voltage output range of five groups of power supply detection and analysis units is 0-5V, and the maximum output current is 4A; the power supply voltage output range of the other two groups of power supply detection and analysis units is 0-10V, and the maximum output current is 2A.

[0019] like Figure 2The figure is a schematic diagram of the structure of the power detection and analysis unit according to an embodiment of the present invention, wherein the power detection and analysis unit specifically includes a control and data processing unit, a power circuit, a voltage regular adjustment and fine adjustment circuit, a voltage detection circuit, a working current detection amplification and acquisition circuit, a transient current detection amplification and acquisition circuit, a power switch and a sampling resistor, wherein:

[0020] The control and data processing unit is used to control the operation of each circuit and data reception and processing, and is responsible for communicating with the host computer, i.e., the PC;

[0021] The power supply circuit is used to provide power output, including 0-5V / 4A or 0-10V / 2A, and the power supply voltage output accuracy is 1%;

[0022] The voltage regular adjustment and fine adjustment circuits are used to adjust the output voltage of the power supply. The voltage adjustment range is 0-5V or 0.5V-10V. The regular adjustment circuit steps from 1V to 0.01V; the fine adjustment circuit steps from 200mV to 0.5mV. The specific operation can be configured by the system according to the needs.

[0023] The voltage detection circuit is used to detect the voltage value outputted from the power supply circuit to the chip end, and feed the data back to the control and data processing unit;

[0024] The working current detection amplification and acquisition circuit is used to amplify and collect the working current signal, and feed the data back to the control and data processing unit; wherein the sampling rate is DC-10KHz, and the detection range is 2A-1uA;

[0025] The transient current detection amplification and acquisition circuit is used to amplify and acquire the transient current signal, and feed the data back to the control and data processing unit; wherein the sampling rate is DC-100MHz, and the detection range is 4A-1mA;

[0026] The power switch is used to control the on and off of the output power;

[0027] The sampling resistor is used to provide the original I / U signal for the current detection circuit.

[0028] Based on the structure of the system, the working process of the system is:

[0029] After the chip power detection system is powered on, the PC initializes the detection system, sets power-related parameters, and transmits related instructions to the control and data processing unit through the USB bus;

[0030] The control and data processing unit transmits the voltage value command to be set to the voltage regular adjustment and fine adjustment circuit through the data bus 2. After adjusting the voltage of the power supply circuit, the control and data processing unit controls the power switch to close, and the power is output to the chip end, and the voltage is fed back to the power supply circuit. The power supply circuit automatically compensates for the line voltage loss, so that the voltage at the chip end is consistent with the voltage at the output end of the power supply circuit;

[0031] The control and data processing unit obtains the voltage value output by the power supply circuit from the voltage detection circuit via the data bus 1, and uploads the voltage value data to the PC end, which compares it with the set voltage value; if they are consistent, the chip continues to be powered, otherwise, the power switch disconnection instruction is transmitted to the control and data processing unit via the USB bus, and the control and data processing unit cuts off the power output and gives an alarm message;

[0032] When the chip is powered, the working current detection amplification and acquisition circuit obtains the I / U conversion value from both ends of the sampling resistor 1. After passing through the amplification circuit and the acquisition circuit, the working current data is uploaded to the control and data processing unit through the data bus 3, and then uploaded to the PC through the USB bus;

[0033] When the chip is powered, the transient current detection amplification and acquisition circuit obtains the I / U conversion value from both ends of the sampling resistor 2. After passing through the amplification circuit and the acquisition circuit, the transient current data is uploaded to the control and data processing unit through the data bus 4, and then uploaded to the PC through the USB bus;

[0034] The PC terminal stores the received working current data and transient current data in real time, and displays the working current value at a certain time interval; draws the received working current value and transient current value into a waveform on the display interface, and intuitively displays the real-time values ​​of the working current and transient current in the form of waveforms, or displays the maximum value, average value and minimum value of the current in the display box as needed; the PC terminal monitors the magnitude of the current value in real time during this process, and if it exceeds the warning range, the PC terminal transmits a power switch disconnection instruction to the control and data processing unit through the USB bus, and the control and data processing unit cuts off the power output and gives an alarm message;

[0035] When supplying power to the chip, the PC end transmits voltage adjustment instructions (such as voltage adjustment range, step size, step interval time, etc.) to the control and data processing unit through the USB bus, and the control and data processing unit transmits the voltage adjustment instructions to the voltage routine adjustment and fine adjustment circuit through the data bus 2, and the voltage routine adjustment and fine adjustment circuit sets the voltage value output by the power supply circuit; for each voltage step, the PC end obtains the output voltage value, working current value and transient current value of the chip during operation from the control and data processing unit through the USB bus, and makes a record. After the voltage adjustment is completed, the PC end analyzes and processes all the obtained voltage values, working current values ​​and transient current values, and displays them in the form of data or waveforms;

[0036] When powering the chip, if the chip has multiple working modes, the system can detect and analyze the voltage values, working current values ​​and transient current values ​​of the chip in different working modes and display them in the form of data or waveforms.

[0037] It is worth noting that the contents not described in detail in the embodiments of the present invention belong to the prior art known to professional and technical personnel in the field.

[0038] In summary, the system described in the embodiment of the present invention can realize the adjustment and detection of the power supply voltage, as well as the working current detection and transient current detection functions in various working modes of the chip, as follows:

[0039] 1) The system described in the embodiment of the present invention can set the output power supply voltage step to a minimum of 0.5mV, providing better power system measurement and analysis in the chip development process, and helping to analyze related issues in the chip development process;

[0040] 2) The system described in the embodiment of the present invention can solve the demand for accurate and subtle voltage adjustment in chip detection, and is helpful for analyzing the impact of power supply voltage adjustment or subtle adjustment on the normal operation of the chip;

[0041] 3) The system described in the embodiment of the present invention can solve the working current and transient current values ​​in chip detection, and is helpful to analyze the working current and transient current conditions of the chip in one working cycle or multiple working cycles, the current change amount, the Peak current and other information.

[0042] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims. The information disclosed in the background technology section of this article is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as an admission or in any form that the information constitutes prior art known to those skilled in the art.

Claims

1. A chip power detection and analysis system, characterized in that: The system includes seven groups of power detection and analysis units, each group of power detection and analysis units corresponds to one power supply of the chip; Each power supply detection and analysis unit is connected to the PC via a USB bus, receives relevant instructions from the PC, and uploads corresponding detection data; Among them, the power supply voltage output range of five groups of power supply detection and analysis units is 0-5V, and the maximum output current is 4A; the power supply voltage output range of the other two groups of power supply detection and analysis units is 0-10V, and the maximum output current is 2A.

2. The chip power detection and analysis system according to claim 1, characterized in that: The power detection and analysis unit specifically includes a control and data processing unit, a power circuit, a voltage regular adjustment and fine adjustment circuit, a voltage detection circuit, a working current detection amplification and acquisition circuit, a transient current detection amplification and acquisition circuit, a power switch and a sampling resistor, wherein: The control and data processing unit is used to control the operation of each circuit and data reception and processing, and is responsible for communicating with the host computer, i.e., the PC; The power supply circuit is used to provide power output, including 0-5V / 4A or 0-10V / 2A, and the power supply voltage output accuracy is 1%; The voltage regular adjustment and fine adjustment circuits are used to adjust the output voltage of the power supply. The voltage adjustment range is 0-5V or 0.5V-10V. The regular adjustment circuit steps from 1V to 0.01V; the fine adjustment circuit steps from 200mV to 0.5mV. The specific operation is configured by the system. The voltage detection circuit is used to detect the voltage value outputted from the power supply circuit to the chip end, and feed the data back to the control and data processing unit; The working current detection amplification and acquisition circuit is used to amplify and collect the working current signal, and feed the data back to the control and data processing unit; wherein the sampling rate is DC-10KHz, and the detection range is 2A-1uA; The transient current detection amplification and acquisition circuit is used to amplify and acquire the transient current signal, and feed the data back to the control and data processing unit; wherein the sampling rate is DC-100MHz, and the detection range is 4A-1mA; The power switch is used to control the on and off of the output power; The sampling resistor is used to provide the original I / U signal for the current detection circuit.

3. The chip power detection and analysis system according to claim 2, characterized in that: Based on the structure of the system, the working process of the system is: After the chip power detection system is powered on, the PC initializes the detection system, sets power-related parameters, and transmits related instructions to the control and data processing unit through the USB bus; The control and data processing unit transmits the voltage value command to be set to the voltage regular adjustment and fine adjustment circuit through the data bus. After adjusting the voltage of the power supply circuit, the control and data processing unit controls the power switch to close, and the power is output to the chip end, and the voltage is fed back to the power supply circuit through voltage. The power supply circuit automatically compensates for the line voltage loss, so that the voltage at the chip end is consistent with the voltage at the output end of the power supply circuit; The control and data processing unit obtains the voltage value output by the power supply circuit from the voltage detection circuit through the data bus, and uploads the voltage value data to the PC end, which compares it with the set voltage value; if they are consistent, the chip continues to be powered, otherwise, the power switch disconnection instruction is transmitted to the control and data processing unit through the USB bus, and the control and data processing unit cuts off the power output and gives an alarm message; When the chip is powered, the working current detection amplification and acquisition circuit obtains the I / U conversion value from both ends of the sampling resistor. After passing through the amplification circuit and the acquisition circuit, the working current data is uploaded to the control and data processing unit through the data bus, and then uploaded to the PC through the USB bus; When powering the chip, the transient current detection amplification and acquisition circuit obtains the I / U conversion value from both ends of the sampling resistor. After passing through the amplification circuit and the acquisition circuit, the transient current data is uploaded to the control and data processing unit through the data bus, and then uploaded to the PC through the USB bus; The PC terminal stores the received working current data and transient current data in real time, and displays the working current value at a certain time interval; draws the received working current value and transient current value into a waveform on the display interface, and intuitively displays the real-time values ​​of the working current and transient current in the form of waveforms, or displays the maximum value, average value and minimum value of the current in the display box as needed; the PC terminal monitors the magnitude of the current value in real time during this process, and if it exceeds the warning range, the PC terminal transmits a power switch disconnection instruction to the control and data processing unit through the USB bus, and the control and data processing unit cuts off the power output and gives an alarm message; When supplying power to the chip, the PC end transmits a voltage adjustment instruction to the control and data processing unit through the USB bus, and the control and data processing unit transmits the voltage adjustment instruction to the voltage routine adjustment and fine adjustment circuit through the data bus, and the voltage routine adjustment and fine adjustment circuit sets the voltage value output by the power supply circuit; for each voltage step, the PC end obtains the output voltage value, working current value and transient current value of the chip during operation from the control and data processing unit through the USB bus, and makes a record. After the voltage adjustment is completed, the PC end analyzes and processes all the obtained voltage values, working current values ​​and transient current values, and displays them in the form of data or waveforms; When powering the chip, if the chip has multiple working modes, the system can detect and analyze the voltage values, working current values ​​and transient current values ​​of the chip in different working modes and display them in the form of data or waveforms.

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