Circuit assembly and electronic equipment

Abstract

The invention discloses a circuit assembly and electronic equipment, and belongs to the technical field of electronic equipment, the circuit assembly comprises a power management integrated circuit, the power management integrated circuit comprises a first controller, a first power circuit and a first sampling circuit, and the first controller is electrically connected with the first power circuit and the first sampling circuit; the first sampling circuit is used for collecting the output voltage of the first power circuit; the image signal processing circuit comprises a first load and a second load, and the image signal processing circuit further comprises a first communication interface; a discrete power supply connected in series with the second load, the discrete power supply and the first load being connected in parallel to the first power circuit; wherein before the power-on of the discrete power supply is completed, the first communication interface outputs a first signal, and the first controller maintains the output voltage of the first power circuit unchanged.

Description

Technical Field

[0001] This application belongs to the field of electronic equipment technology, specifically relating to a circuit component and an electronic device. Background Technology

[0002] In related technologies, the image signal processor (ISP) chip of electronic devices usually has multiple load modules, which means that the image signal processor chip needs to be configured with multiple power supplies by a power management integrated circuit (PMIC).

[0003] like Figure 1 As shown, the power management integrated circuit 11' directly supplies power to the first load 121' through the power circuit 112' and supplies power to the second load 122' through the discrete power supply 13'. The sampling circuit 113' collects the voltage of the output capacitor 14' and feeds it back to the controller 111' of the power management integrated circuit 11', thereby adjusting the output of the power circuit 112' and ensuring that the voltage output by the power circuit 112' can be stabilized at a constant value.

[0004] However, as Figure 1 and Figure 2 As shown, when the discrete power supply 13' is powered on and started, there will be a spike in startup current (similar to a triangular wave). The startup current changes rapidly and has a large amplitude. The startup current is deloaded onto the output capacitor 14', affecting the voltage of the first load 121'. Figure 2 In the image, the voltage at the top is the voltage of the first load 121', and the voltage at the bottom is the voltage of the second load 122'.

[0005] like Figure 1 and Figure 3 As shown, the startup current causes a voltage drop on the output capacitor 14'. After the sampling circuit 113' detects the voltage drop, it adjusts the power circuit 112'. However, once the power circuit 112' has finished adjusting, the startup current quickly disappears, leaving excess energy with nowhere to dissipate. This excess energy then charges the output capacitor 14', causing the voltage of the first load 121' to rise. This, in turn, affects the image signal processing chip 12'. If the voltage rise exceeds the withstand voltage value, it will damage the image signal processing chip 12'. Figure 3 In the image, the voltage at the top is the voltage of the first load 121', and the voltage at the bottom is the voltage of the second load 122'. Summary of the Invention

[0006] This application aims to provide a circuit component and electronic device that at least solves one of the technical problems of the starting current of some loads within an image signal processing chip affecting the voltage rise of other loads.

[0007] To solve the above-mentioned technical problems, this application is implemented as follows:

[0008] In a first aspect, embodiments of this application provide a circuit assembly, including:

[0009] A power management integrated circuit includes a first controller, a first power circuit, and a first sampling circuit. The first controller, the first power circuit, and the first sampling circuit are electrically connected. The first sampling circuit is used to acquire the output voltage of the first power circuit.

[0010] An image signal processing circuit, which includes a first load and a second load, and also includes a first communication interface;

[0011] A discrete power supply is connected in series with the second load, and the discrete power supply and the first load are connected in parallel to the first power circuit.

[0012] Before the discrete power supply is powered on, the first communication interface outputs a first signal, and the first controller maintains the output voltage of the first power circuit unchanged.

[0013] Secondly, embodiments of this application provide an electronic device, including:

[0014] Circuit board;

[0015] The circuit assembly provided in the first aspect embodiment is arranged on a circuit board.

[0016] In the embodiments of this application, the circuit components include a power management integrated circuit, an image signal processing circuit, and a discrete power supply. The power management integrated circuit includes a first controller, a first power circuit, and a first sampling circuit. The first sampling circuit can collect the output voltage of the first power circuit. The first controller, the first power circuit, and the first sampling circuit are all electrically connected. The first controller can adjust the first power circuit according to the voltage collected by the first sampling circuit to stabilize the output voltage of the first power circuit.

[0017] The image signal processing circuit includes a first load and a second load. A discrete power supply and the second load are connected in series. The discrete power supply and the first load are connected in parallel to a first power circuit. Thus, the first power circuit can directly supply power to the first load. The first power circuit can also supply power to the second load through the discrete power supply.

[0018] The image signal processing circuit also includes a first communication interface, which is used to output a first signal to indicate the power-on status of the discrete power supply.

[0019] Before the discrete power supply is fully powered on, the first controller maintains the output voltage of the first power circuit unchanged. Furthermore, by ceasing real-time control of the first power circuit before the discrete power supply is fully powered on, the output voltage of the first power circuit remains at the previous value. This prevents the starting current of the second load from affecting the output voltage of the first power circuit, reducing the possibility of voltage rise in the first load and thus reducing the possibility of damage to the image signal processing circuit.

[0020] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 This is a block diagram of the power management integrated circuit and image signal processing circuit in related technologies;

[0023] Figure 2 It is an interface diagram of the current of the first load and the second load in the power management integrated circuit and the image signal processing circuit in the software detection related technology;

[0024] Figure 3 This is an interface diagram showing the voltage of the first and second loads in the power management integrated circuit and image signal processing circuit in software detection related technologies.

[0025] Figure 4 This is one of the structural block diagrams of the circuit components according to embodiments of this application;

[0026] Figure 5 Is it like this? Figure 4 The control logic diagram of the circuit components provided in the embodiment shown is as follows;

[0027] Figure 6 This is a second structural block diagram of a circuit assembly according to an embodiment of this application;

[0028] Figure 7 Is it like this? Figure 6 The control logic diagram of the circuit components provided in the embodiment shown is as follows;

[0029] Figure 8 This is a third structural block diagram of a circuit assembly according to an embodiment of this application;

[0030] Figure 9 This is a schematic diagram of the output voltage of the first power circuit in the circuit components and related technologies provided in the embodiments of this application;

[0031] Figure 10 This is a schematic diagram of an electronic device according to an embodiment of this application.

[0032] Figure label:

[0033] 11' Power management integrated circuit, 111' Controller, 112' Power circuit, 113' Sampling circuit, 12' Image signal processing chip, 121' First load, 122' Second load, 13' Discrete power supply, 14' Output capacitor;

[0034] 1. Circuit components, 11. Power management integrated circuit, 111. First controller, 112. First power circuit, 113. First sampling circuit, 114. Second power circuit, 115. Second sampling circuit, 116. Second communication interface, 12. Image signal processing circuit, 121. First load, 122. Second load, 123. Third load, 124. First communication interface, 125. Second controller, 13. Discrete power supply, 14. Switching device, 141. Control port, 15. First capacitor, 16. Second capacitor, 17. First line, 18. Second line, 2. Electronic equipment, 21. Circuit board. Detailed Implementation

[0035] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0036] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0037] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0038] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0039] The following is combined with Figures 4 to 10 The circuit assembly 1 and the electronic device 2 according to embodiments of this application are described.

[0040] Firstly, such as Figure 4 and Figure 6 As shown in the figure, this application embodiment proposes a circuit component 1, including: a power management integrated circuit 11, the power management integrated circuit 11 including a first controller 111, a first power circuit 112 and a first sampling circuit 113, the first controller 111, the first power circuit 112 and the first sampling circuit 113 being electrically connected, the first sampling circuit 113 being used to acquire the output voltage of the first power circuit 112; an image signal processing circuit 12, the image signal processing circuit 12 including a first load 121 and a second load 122, the image signal processing circuit 12 also including a first communication interface 124; a discrete power supply 13, which is connected in series with the second load 122, and the discrete power supply 13 and the first load 121 are connected in parallel with the first power circuit 112; wherein, before the discrete power supply 13 is powered on, the first communication interface 124 outputs a first signal, and the first controller 111 maintains the output voltage of the first power circuit 112 unchanged.

[0041] In the embodiments of this application, the circuit component 1 includes a power management integrated circuit 11, an image signal processing circuit 12, and a discrete power supply 13. The power management integrated circuit 11 includes a first controller 111, a first power circuit 112, and a first sampling circuit 113. The first sampling circuit 113 can collect the output voltage of the first power circuit 112. The first controller 111, the first power circuit 112, and the first sampling circuit 113 are all electrically connected. The first controller 111 can adjust the first power circuit 112 according to the voltage collected by the first sampling circuit 113 so as to stabilize the output voltage of the first power circuit 112.

[0042] The image signal processing circuit 12 includes a first load 121 and a second load 122. A discrete power supply 13 and the second load 122 are connected in series. The discrete power supply 13 and the first load 121 are connected in parallel to the first power circuit 112. Thus, the first power circuit 112 can directly supply power to the first load 121. The first power circuit 112 can also supply power to the second load 122 through the discrete power supply 13.

[0043] The image signal processing circuit 12 also includes a first communication interface 124, which is used to output a first signal to indicate the power-on status of the discrete power supply 13.

[0044] Before the discrete power supply 13 is fully powered on, that is, between the power-on of the first power circuit 112 and the power-on of the discrete power supply 13, during the startup process of the discrete power supply 13, the first controller 111 maintains the output voltage of the first power circuit 112 unchanged. Furthermore, by ceasing real-time control of the first power circuit 112 between the power-on of the first power circuit 112 and the power-on of the discrete power supply 13, the output voltage of the first power circuit 112 is maintained at the previous value. This prevents the startup current of the discrete power supply 13 from affecting the output voltage of the first power circuit 112, reducing the possibility of voltage rise in the first load 121 and the possibility of damage to the image signal processing circuit 12.

[0045] The image signal processing circuit 12 can be an image signal processing chip.

[0046] like Figure 9 As shown, in related technologies, when a discrete power supply starts up, a surge current is generated. Affected by the surge current, the output voltage of the first power circuit will have a significant rise, which will easily damage the image signal processing voltage. The circuit component 1 provided in this application embodiment does not have a significant rise after the first power circuit 112 is subjected to a surge current, reducing the overshoot voltage value and ensuring that the loads in the image signal processing circuit 12 have a stable power-on process.

[0047] like Figure 4 and Figure 6As shown, according to some embodiments of this application, when the first load 121 receives electrical energy output from the first power circuit 112, the first communication interface 124 outputs a first signal; when the second load 122 receives electrical energy output from the discrete power supply 13, the first communication interface stops outputting the first signal.

[0048] Specifically, since the discrete power supply 13 and the first load 121 are connected in parallel to the first power circuit 112, it can be assumed that the discrete power supply 13 and the first load 121 can simultaneously obtain the electrical energy output by the first power circuit 112. Therefore, after the first power circuit 112 is powered on, it will output electrical energy. At this time, the image signal processing circuit 12 determines whether the first power current 112 outputs electrical energy by detecting the current or voltage of the internal first load 121, and determines whether the first power circuit 112 is powered on. The moment when the first power circuit 112 is powered on can be considered as the moment when the discrete power supply 13 starts to be powered on.

[0049] The discrete power supply 13 and the second load 122 are connected in series. Therefore, after the discrete power supply 13 is powered on, it will output power to the second load 122. At this time, the image signal processing circuit 12 determines whether the discrete power supply 13 outputs power and whether the discrete power supply 13 has been powered on by detecting the current or voltage of the internal second load 122.

[0050] The entire process of determining the power-on state of the discrete power supply 13 occurs within the image signal processing circuit 12, which can reduce the delay of the first signal and improve the timeliness of the first signal.

[0051] The first signal can be a high-level signal, and the first communication interface 124 outputs a low-level signal during the period between the completion of power-on of the discrete power supply 13 and the completion of power-on of the second load 122.

[0052] like Figure 4 As shown, according to some embodiments of this application, the power management integrated circuit 11 further includes a second communication interface 116. The first controller 111 and the second communication interface 116 are electrically connected, and the first communication interface 124 and the second communication interface 116 are communicatively connected. When the first load 121 receives electrical energy output from the first power circuit 112, the first communication interface 124 outputs a first signal. The first controller 111 responds to the first signal and maintains the output voltage of the first power circuit 112 unchanged. When the second load 122 receives electrical energy output from the discrete power supply 13, the first communication interface stops outputting the first signal.

[0053] Specifically, the power management integrated circuit 11 also includes a second communication interface 116. The first controller 111 and the second communication interface 116 are electrically connected, and the first communication interface 124 and the second communication interface 116 are communicatively connected. Thus, the first communication interface 124 can transmit the first signal to the second communication interface 116, and the second communication interface 116 can transmit the first signal to the first controller 111.

[0054] When the first load 121 receives electrical energy from the first power circuit 112, it is considered that the discrete power supply 13 has started the power-on process. The first communication interface 124 outputs a first signal, and the first controller 111 responds to the first signal to maintain the output voltage of the first power circuit 112 unchanged. When the second load 122 receives electrical energy from the discrete power supply 13, it is considered that the discrete power supply 13 has completed the power-on process, and the first communication interface stops outputting the first signal.

[0055] That is, during the startup process of the discrete power supply 13, the first communication interface 124 outputs a first signal, which is then transmitted to the first controller 111 via the second communication interface 116. In response to the first signal, the first controller 111 adjusts the control mode to maintain the output voltage of the first power circuit 112 unchanged.

[0056] In other words, by writing software into the first controller 111 to maintain the output voltage of the first power circuit 112 unchanged, hardware costs can be saved.

[0057] like Figure 4 As shown, the circuit component 1 provided in this application embodiment can solve the technical problem of the impact of the discrete power supply 13 being removed from the power circuit, and improve the reliability of the load being powered on in the image signal processing circuit 12.

[0058] During the startup process, the discrete power supply 13 shields the signal of the first sampling circuit 113 and suspends the control and adjustment of the first power circuit 112, thus avoiding the abnormal influence of the first sampling circuit 113 and the resulting voltage overshoot of the first load 121.

[0059] The image signal processing circuit 12 outputs a first signal through the first communication interface 124 and notifies the power management integrated circuit 11 through the second communication interface 116. The power management integrated circuit 11 determines whether to process the signal output by the first sampling circuit 113 based on the first signal.

[0060] A first communication interface 124 is added to the image signal processing circuit 12, a second communication interface 116 is added to the power management integrated circuit 11, and a first controller 111 is added to determine whether to control loop adjustment based on an external first signal. The first signal transmission direction is from the image signal processing circuit 12 to the power management integrated circuit 11.

[0061] The first power circuit 112 supplies power to the first load 121. The first sampling circuit 113 collects the output voltage of the first power circuit 112 and allows the first controller 111 to make adjustments to maintain the voltage of the first load 121 constant.

[0062] The input of discrete power supply 13 is the first power circuit 112 of power management integrated circuit 11. Discrete power supply 13 is the subsequent power supply, which supplies power to the second load 122.

[0063] The first communication interface 124 of the image signal processing circuit 12 is designed to prevent abnormal overshoot of the output voltage of the first power circuit 112 during the startup process of the discrete power supply 13. The first communication interface 124 outputs a first signal to notify the first controller 111 to ignore the signal output by the first sampling circuit 113 at this time. The first signal is a high-level signal.

[0064] That is, when the first controller 111 receives a high-level first signal, it ignores the signal output by the first sampling circuit 113. When the first controller 111 does not receive a high-level first signal, it controls the first power circuit 112 according to the signal output by the first sampling circuit 113.

[0065] The second power circuit 114 supplies power to the third load 123. The second sampling circuit 115 samples the output voltage of the second power circuit 114 and causes the first controller 111 to adjust it to maintain a constant voltage for the third load 123. If the output voltage is found to be too low, the first controller 111 will cause the second power circuit 114 to increase the output voltage. If the output voltage is found to be too high, the first controller 111 will cause the second power circuit 114 to increase the output voltage. The second power circuit 114 is only connected to the third load 123 and does not have a separate power supply 13.

[0066] The system does not respond to voltage changes in the output capacitor during startup. The brief startup current will only cause a slight voltage drop, which will not affect the normal operation of circuit component 1, thus avoiding the abnormal voltage overshoot problem caused by the first controller 111 responding to the startup current.

[0067] like Figure 5 As shown, the specific logic is as follows: the first power circuit 112 powers on and starts to supply power to the first load 121, so that the first load 121 is powered on to the set value. During this process, the output of the first communication interface 124 is pulled low by default. The first controller 111 continuously adjusts the first power circuit 112 according to the signal output by the first sampling circuit 113.

[0068] After the first power circuit 112 is powered on and before the discrete power supply 13 is powered on, that is, during the startup process of the discrete power supply 13, the first communication interface 124 outputs a first signal to notify the power management integrated circuit 11 to stop adjusting the first power circuit 112, maintain the output voltage of the first power circuit 112 unchanged, and reduce the possibility of voltage overshoot during the startup process of the discrete power supply 13.

[0069] After the second load 122 is powered on, the image signal processing circuit 12 outputs a second signal or stops outputting a signal. After the power management integrated circuit 11 receives the second signal or stops receiving the signal, it readjusts the first power circuit 112 to ensure that the output voltage is stable under normal working conditions.

[0070] According to some embodiments of this application, the first communication interface 124 and the second communication interface 116 are both general-purpose input / output (GPIO) interfaces.

[0071] Specifically, both the first communication interface 124 and the second communication interface 116 are general-purpose input / output interfaces.

[0072] like Figure 6 As shown, according to some embodiments of this application, circuit component 1 further includes: a switching device 14 connected in series with the first sampling circuit 113, and a first communication interface 124 electrically connected to the control port 141 of the switching device 14; wherein, when the first load 121 receives electrical energy output from the first power circuit 112, the first communication interface 124 outputs a first signal, the switching device 14 switches from an on state to an off state in response to the first signal, and the first controller 111 maintains the output voltage of the first power circuit 112 unchanged; when the second load 122 receives electrical energy output from the discrete power supply 13, the first communication interface stops outputting the first signal.

[0073] Specifically, the circuit assembly 1 also includes a switching device 14 connected in series with the first sampling circuit 113. When the switching device 14 is in the on state, the first sampling circuit 113 can collect the output voltage of the first power circuit 112. When the switching device 14 is in the off state, the first sampling circuit 113 cannot collect the output voltage of the first power circuit 112.

[0074] The first communication interface 124 is electrically connected to the control port 141 of the switching device 14.

[0075] When the first load 121 receives electrical energy from the first power circuit 112, it is considered that the discrete power supply 13 has started the power-on process. The first communication interface 124 outputs a first signal, and the switching device 14 switches from the on state to the off state in response to the first signal. The first controller 111 maintains the output voltage of the first power circuit 112 unchanged. When the second load 122 receives electrical energy from the discrete power supply 13, it is considered that the power-on of the discrete power supply 13 has been completed, and the first communication interface stops outputting the first signal.

[0076] That is, during the startup process of the discrete power supply 13, the first communication interface 124 outputs a first signal, which is transmitted to the control port 141 of the switching device 14. In response to the first signal, the switching device 14 switches from the on state to the off state. As a result, the first sampling circuit 113 no longer samples the output voltage of the first power circuit 112, and the first controller 111 will not receive the output of the first sampling circuit 113. Therefore, the first controller 111 no longer adjusts the first power circuit 112, thus maintaining the output voltage of the first power circuit 112 unchanged.

[0077] In other words, by adding a switching device 14 to control whether the first sampling circuit 113 collects the output voltage of the first power circuit 112, the software does not need to be rewritten, thus reducing software development costs.

[0078] like Figure 6 As shown, a switching device 14 is connected in series in the first sampling circuit 113. The switching device 14 can be connected in series in the path connecting the first sampling circuit 113 and the first line 17. The first signal output by the image signal processing circuit 12 controls the switching device 14 to turn on and off, thereby physically realizing the on and off of the output signal of the first sampling circuit 113.

[0079] A first communication interface 124 is added to the image signal processing circuit 12, and a switching device 14 is added to the first sampling circuit 113. The switching device 14 is controlled by the first communication interface 124, thereby realizing the controllable switching on and off of the first sampling circuit 113.

[0080] The main function of the switching device 14 is to disconnect the first sampling circuit 113 in the circuit during the startup time of the second load 122. When the first controller 111 does not receive the signal output by the first sampling circuit 113, the logic of the first controller 111 is to keep the first power circuit 112 unchanged. Therefore, the output voltage of the first power circuit 112 will not change abruptly, reducing the impact on the power supply of the first load 121.

[0081] like Figure 7As shown, the specific logic is as follows: Before the first power circuit 112 is powered on, the first communication interface 124 outputs a second signal or does not output a signal, the switching device 14 is turned on, and the first controller 111 continuously adjusts the first power circuit 112 according to the signal output by the first sampling circuit 113, so that the first power circuit 112 is powered on to the set value.

[0082] The image signal processing circuit 12 has a built-in voltage monitoring function, which can monitor whether the first power circuit 112 has completed power-on. After detecting that the first power circuit 112 has completed power-on, the image signal processing circuit 12 outputs a first signal, causing the switching device 14 to open. The power management integrated circuit 11 does not receive the signal output by the first sampling circuit 113 and no longer adjusts the first power circuit 112. Since there is a certain time interval between the completion of power-on of the first power circuit 112 and the start of power-on of the discrete power supply 13, it can be ensured that the time period for outputting the first signal can cover the entire process of power-on of the discrete power supply 13.

[0083] When the discrete power supply 13 is detected to have completed power-on, the first communication interface 124 of the image signal processing circuit 12 outputs a second signal or does not output a signal, the switching device 14 is turned on, and the first power circuit 112 is readjusted to ensure the stability of the output voltage of the first power circuit 112 under normal working conditions.

[0084] According to some embodiments of this application, the switching device 14 is a field-effect transistor (MOSFET) switch.

[0085] Specifically, the switching device 14 is a field-effect transistor switch.

[0086] like Figure 4 and Figure 6 As shown, according to some embodiments of this application, circuit component 1 further includes: a first capacitor 15, a first line 17 connected to the first power circuit 112 supplying power to the first load 121 and the discrete power supply 13, and a first sampling circuit 113 acquiring the output voltage of the first power circuit 112 through the voltage of the first capacitor 15.

[0087] Specifically, the circuit assembly 1 also includes a first capacitor 15, which is connected to the first line 17 of the first power circuit 112 supplying power to the first load 121 and the discrete power supply 13. The first sampling circuit 113 collects the output voltage of the first power circuit 112 through the voltage of the first capacitor 15.

[0088] like Figure 4 and Figure 6As shown, according to some embodiments of this application, the power management integrated circuit 11 further includes a second power circuit 114 and a second sampling circuit 115. The first controller 111, the second power circuit 114, and the second sampling circuit 115 are electrically connected. The second sampling circuit 115 is used to acquire the output voltage of the second power circuit 114. The image signal processing circuit 12 further includes a third load 123. The second power circuit 114 and the third load 123 are electrically connected.

[0089] Specifically, the power management integrated circuit 11 also includes a second power circuit 114 and a second sampling circuit 115. The first controller 111 and the second power circuit 114 and the second sampling circuit 115 are electrically connected. The second sampling circuit 115 can collect the output voltage of the second power circuit 114. The first controller 111 can adjust the second power circuit 114 according to the voltage collected by the second sampling circuit 115 so that the output voltage of the second power circuit 114 is stable.

[0090] The image signal processing circuit 12 includes a third load 123, a second load 122 and a second power circuit 114 electrically connected, and the second power circuit 114 can also supply power to the third load 123.

[0091] In other words, the power management integrated circuit 11 can supply power to multiple loads within the image signal processing circuit 12.

[0092] like Figure 4 and Figure 6 As shown, according to some embodiments of this application, circuit component 1 further includes: a second capacitor 16, a second line 18 connected to the second power circuit 114 supplying power to the third load 123, and a second sampling circuit 115 acquiring the output voltage of the second power circuit 114 through the voltage of the second capacitor 16.

[0093] like Figure 8 As shown, according to some embodiments of this application, the image signal processing circuit 12 further includes a second controller 125, which is electrically connected to the first load 121 and the second load 122. The second controller 125 is used to monitor whether the first power circuit 112 and the discrete power supply 13 have been powered on.

[0094] Specifically, the image signal processing circuit 12 also includes a second controller 125, which is electrically connected to the first load 121 and the second load 122. The second controller 125 is used to monitor whether the first power circuit 112 and the discrete power supply 13 have been powered on, thereby providing a basis for the first controller 111 to maintain the output voltage of the first power current.

[0095] Between the completion of power-on of the first power circuit 112 and the completion of power-on of the discrete power supply 13, the first signal can be output through the first communication interface 124.

[0096] The circuit component 1 provided in this application embodiment optimizes the power quality during multi-load startup, and can maintain voltage stability during normal operation and power-on process. Through a reliable power-on process, it reduces the possibility of circuit startup abnormalities and hardware damage caused by power overshoot.

[0097] Secondly, such as Figure 10 As shown, this application provides an electronic device 2, including: a circuit board 21; and a circuit component 1 as provided in the first aspect embodiment, the circuit component 1 being arranged on the circuit board 21.

[0098] The electronic device 2 provided in this application includes the circuit component 1 provided in the first aspect embodiment, and therefore has all the beneficial effects of the circuit component 1 provided in the first aspect embodiment, which will not be described in detail here.

[0099] In this application embodiment, the electronic device 2 can be a terminal or other devices besides a terminal. For example, the electronic device 2 can be a mobile phone, tablet computer, laptop computer, handheld computer, in-vehicle electronic device, mobile internet device (MID), augmented reality (AR) / virtual reality (VR) device, robot, wearable device, ultra-mobile personal computer (UMPC), netbook, or personal digital assistant (PDA), etc. It can also be a server, network attached storage (NAS), personal computer (PC), television (TV), ATM, or self-service machine, etc. This application embodiment does not make specific limitations.

[0100] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0101] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A circuit component, characterized in that, include: A power management integrated circuit, the power management integrated circuit including a first controller, a first power circuit and a first sampling circuit, the first controller, the first power circuit and the first sampling circuit being electrically connected, the first sampling circuit being used to collect the output voltage of the first power circuit; An image signal processing circuit, the image signal processing circuit including a first load and a second load, and the image signal processing circuit further including a first communication interface; A discrete power supply is connected in series with the second load, and the discrete power supply and the first load are connected in parallel to the first power circuit. Before the discrete power supply is powered on, the first communication interface outputs a first signal, and the first controller maintains the output voltage of the first power circuit unchanged.

2. The circuit assembly according to claim 1, characterized in that, When the first load receives electrical energy output from the first power circuit, the first communication interface outputs the first signal; when the second load receives electrical energy output from the discrete power supply, the first communication interface stops outputting the first signal.

3. The circuit assembly according to claim 2, characterized in that, The power management integrated circuit further includes a second communication interface, the first controller and the second communication interface are electrically connected, and the first communication interface and the second communication interface are communicatively connected; When the first load receives electrical energy output from the first power circuit, the first communication interface outputs the first signal, and the first controller responds to the first signal to maintain the output voltage of the first power circuit unchanged. When the second load receives electrical energy output from the discrete power supply, the first communication interface stops outputting the first signal.

4. The circuit assembly according to claim 3, characterized in that, Both the first communication interface and the second communication interface are general-purpose input / output interfaces.

5. The circuit assembly according to claim 2, characterized in that, Also includes: A switching device is connected in series with the first sampling circuit, and the first communication interface is electrically connected to the control port of the switching device. When the first load receives electrical energy output from the first power circuit, the first communication interface outputs the first signal, the switching device switches from an on state to an off state in response to the first signal, the first controller maintains the output voltage of the first power circuit unchanged, and when the second load receives electrical energy output from the discrete power supply, the first communication interface stops outputting the first signal.

6. The circuit assembly according to claim 5, characterized in that, The switching device is a field-effect transistor switch.

7. The circuit assembly according to any one of claims 1 to 6, characterized in that, Also includes: The first capacitor is connected to the first line through which the first power circuit supplies power to the first load and the discrete power supply. The first sampling circuit collects the output voltage of the first power circuit through the voltage of the first capacitor.

8. The circuit assembly according to any one of claims 1 to 6, characterized in that, The power management integrated circuit also includes a second power circuit and a second sampling circuit. The first controller, the second power circuit, and the second sampling circuit are electrically connected. The second sampling circuit is used to acquire the output voltage of the second power circuit. The image signal processing circuit also includes a third load, and the second power circuit and the third load are electrically connected.

9. The circuit assembly according to any one of claims 1 to 6, characterized in that, The image signal processing circuit further includes: The second controller is electrically connected to the first load and the second load, and the second controller is used to monitor whether the first power circuit and the discrete power supply have been powered on.

10. An electronic device, characterized in that, include: Circuit board; The circuit assembly as described in any one of claims 1 to 9, wherein the circuit assembly is disposed on the circuit board.

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