Device and method for reducing power consumption of ideal diode circuit and related equipment

Abstract

The invention provides a device and method for reducing power consumption of an ideal diode circuit and related equipment. The device comprises a vehicle power module, the ideal diode circuit and a load circuit. In response to connection of the ignition signal, the vehicle power module supplies power to the load circuit through the ideal diode circuit; the ideal diode circuit is enabled by the load circuit, so that an MOS tube in the ideal diode circuit is conducted, and the load circuit obtains current to work; in response to the ignition signal being open, the load circuit and the ideal diode circuit stop operating. By intelligently controlling starting and stopping of the ideal diode circuit, the problem that the ideal diode still consumes current continuously after the vehicle flames out is solved, and waste of quiescent current is effectively reduced. The working state of the ideal diode circuit is controlled through the load circuit, and unnecessary current flow is avoided, so that the burden on the battery is reduced, and the service life of the battery is prolonged. In addition, according to the scheme, the reliability of the system is improved, and efficient use of the vehicle battery is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automotive electronics, and in particular to a device and method for reducing power consumption of an ideal diode circuit and related equipment. BACKGROUND

[0002] With the increasing number of modern vehicle electronic devices and their increasing complexity, the management of vehicle batteries becomes particularly important. In order to avoid the problem of battery depletion after the vehicle is turned off, vehicle manufacturers have increasingly stringent requirements for the static current of electronic devices after the vehicle is turned off, such as requiring a static current as low as 0.1 mA.

[0003] In vehicle-mounted devices, an anti-reverse connection / prevent backflow circuit is usually composed of an ideal diode control chip and a Metal Oxide Semiconductor Field Effect Transistor (MOSFET) to reduce the heat generated by the device. However, the current of the current ideal diode control chip is usually large when it is working, exceeding 1 mA, which causes the ideal diode control chip to continue to consume current after the vehicle is turned off, resulting in unnecessary static current waste.

[0004] This problem is particularly prominent in the context of the increasing complexity of vehicle-mounted electronic devices, and effective technical solutions are needed to reduce the static current of electronic devices after the vehicle is turned off to meet the current control requirements of vehicle manufacturers and ensure the long-term stable use of vehicle-mounted batteries. SUMMARY

[0005] Therefore, the embodiments of the present application provide a device and method for reducing the power consumption of an ideal diode circuit and related equipment to solve the problem of high power consumption of the circuit.

[0006] To achieve the above-mentioned purpose, the embodiments of the present application provide the following technical solutions:

[0007] The first aspect of the present application discloses a device for reducing the power consumption of an ideal diode circuit, comprising: a vehicle electrical module, an ideal diode circuit, and a load circuit;

[0008] The anode of the vehicle electrical module is connected to the ideal diode circuit; the enable end of the ideal diode circuit is connected to the output end of the load circuit;

[0009] The output end of the ideal diode circuit is connected to the input end of the load circuit;

[0010] In response to the ignition signal being turned on, the vehicle power module supplies power to the load circuit through the ideal diode circuit; the MOS tube in the ideal diode circuit is turned on by the load circuit enabling the ideal diode circuit, and the load circuit obtains current to work; in response to the ignition signal being turned off, the load circuit and the ideal diode circuit stop working.

[0011] Preferably, the ideal diode circuit comprises a MOS tube and an ideal diode control chip.

[0012] The source of the MOS tube is connected to the common terminal of the ideal diode control chip, and the anode of the vehicle power module is connected to the common terminal.

[0013] The drain of the MOS tube is connected to the common terminal of the ideal diode control chip, and the input terminal of the load circuit is connected to the common terminal.

[0014] The gate of the MOS tube is connected to the ideal diode control chip.

[0015] The enable terminal of the ideal diode control chip is connected to the output terminal of the load circuit.

[0016] In response to the ignition signal being turned on, the vehicle power module supplies power to the load circuit through the body diode of the MOS tube; the ideal diode control chip receives the high level output by the load circuit to turn on the MOS tube, so that the load circuit obtains current to work; in response to the ignition signal being turned off, the load circuit and the ideal diode control chip stop working.

[0017] Preferably, the load circuit comprises a small power circuit and a large power circuit.

[0018] The first output terminal of the small power circuit is connected to the enable terminal of the ideal diode circuit.

[0019] The input terminal of the small power circuit and the input terminal of the large power circuit are respectively connected to the output terminal of the ideal diode circuit.

[0020] The second output terminal of the small power circuit is connected to the enable terminal of the large power circuit.

[0021] In response to the ignition signal being turned on, the small power circuit outputs a high level to the ideal diode circuit based on the power supply of the vehicle power module, so that the MOS tube in the ideal diode circuit is turned on; after the MOS tube in the ideal diode circuit is turned on, the small power circuit enables the large power circuit, and the small power circuit and the large power circuit obtain current to work.

[0022] In response to the ignition signal being turned off, the low-power circuit and the high-power circuit, and the ideal diode circuit stop working.

[0023] Preferably, the device further comprises a diode.

[0024] The enable terminal of the ideal diode circuit is connected to the cathode of the diode, and the anode of the diode is connected to the output terminal of the load circuit.

[0025] The second aspect of the present application discloses a method for reducing power consumption of an ideal diode circuit, applied to the device disclosed in the first aspect of the present application, and the method comprises:

[0026] In response to the ignition signal being turned on, the vehicle power module supplies power to the load circuit through the ideal diode circuit.

[0027] The load circuit enables the ideal diode circuit, so that the MOS transistor in the ideal diode circuit is turned on, and the load circuit obtains current to work.

[0028] In response to the ignition signal being turned off, the load circuit and the ideal diode circuit stop working.

[0029] Preferably, in response to the ignition signal being turned on, the vehicle power module supplies power to the load circuit through the ideal diode circuit, which comprises:

[0030] In response to the ignition signal being turned on, the vehicle power module supplies power to the ideal diode circuit.

[0031] The body diode of the MOS transistor in the ideal diode circuit supplies power to the load circuit.

[0032] Preferably, the load circuit enables the ideal diode circuit, so that the MOS transistor in the ideal diode circuit is turned on, and the load circuit obtains current to work, which comprises:

[0033] The load circuit inputs a high level to the ideal diode circuit to enable the ideal diode circuit, so that the MOS transistor in the ideal diode circuit is turned on.

[0034] After the load circuit obtains current, the low-power circuit in the load circuit enables the high-power circuit in the load circuit, and the low-power circuit and the high-power circuit work.

[0035] The third aspect of the present application discloses a computer device, comprising a processor and a memory connected through a bus; wherein the processor is used to call and execute a program stored in the memory; and the memory is used to store a program for realizing the method for reducing power consumption of an ideal diode circuit disclosed in the second aspect of the present application.

[0036] The fourth aspect of the present application discloses a storage medium, wherein computer executable instructions are stored in the storage medium, and the computer executable instructions are used to execute the method for reducing power consumption of an ideal diode circuit disclosed in the second aspect of the present application.

[0037] The fifth aspect of the present application discloses a computer software product, comprising executable computer instructions, wherein the computer instructions are executed by a processor of a computer device to implement the method for reducing power consumption of an ideal diode circuit disclosed in the second aspect of the present application.

[0038] Based on the above-mentioned device, method and related equipment for reducing power consumption of an ideal diode circuit provided by the embodiments of the present application, the device comprises a vehicle power module, an ideal diode circuit and a load circuit. In response to the ignition signal being turned on, the vehicle power module supplies power to the load circuit through the ideal diode circuit; the ideal diode circuit is enabled by the load circuit, so that the MOS tube in the ideal diode circuit is turned on, and the load circuit obtains current to work; in response to the ignition signal being turned off, the load circuit and the ideal diode circuit stop working. By intelligently controlling the activation and deactivation of the ideal diode circuit, the problem that the ideal diode still consumes current after the vehicle is turned off is solved, and the waste of static current is effectively reduced. By controlling the working state of the ideal diode circuit through the load circuit, unnecessary current flow is avoided, thereby reducing the burden on the battery and prolonging the service life of the battery. In addition, the scheme improves the reliability of the system and ensures efficient use of the vehicle battery. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of the provided drawings.

[0040] Figure 1 The first structural diagram of the device for reducing power consumption of an ideal diode circuit provided by the embodiments of the present application is shown in the figure.

[0041] Figure 2 The second structural diagram of the device for reducing power consumption of an ideal diode circuit provided by the embodiments of the present application is shown in the figure.

[0042] Figure 3 The third structural diagram of the device for reducing power consumption of an ideal diode circuit provided by the embodiments of the present application is shown in the figure.

[0043] Figure 4 The flowchart of the method for reducing power consumption of an ideal diode circuit provided by the embodiments of the present application is shown in the figure.

[0044] Figure 5 Fig. 1 shows a structural schematic diagram of a computer device according to an embodiment of the present application. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort fall within the protection scope of the present application.

[0046] In the present application, the terms "comprising", "containing" or any other variants thereof are intended to cover the non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the sentence "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0047] As known from the background, in order to avoid battery discharge after engine off, the static current is required to be as low as 0.1 mA, but the current of the ideal diode control chip is too large, exceeding 1 mA, resulting in unnecessary current consumption after engine off.

[0048] Therefore, the embodiments of the present application provide a device, method and related equipment for reducing the power consumption of an ideal diode circuit. The device comprises a vehicle power module, an ideal diode circuit and a load circuit. In response to the ignition signal being turned on, the vehicle power module supplies power to the load circuit through the ideal diode circuit; the ideal diode circuit is enabled by the load circuit, so that the MOS tube in the ideal diode circuit is turned on, and the load circuit obtains current to work; in response to the ignition signal being turned off, the load circuit and the ideal diode circuit stop working. By intelligently controlling the activation and deactivation of the ideal diode circuit, the problem of continuous current consumption of the ideal diode after the vehicle engine is turned off is solved, and the waste of static current is effectively reduced. By controlling the working state of the ideal diode circuit through the load circuit, unnecessary current flow is avoided, thereby reducing the burden on the battery and prolonging the service life of the battery. In addition, the scheme improves the reliability of the system and ensures efficient use of the vehicle battery.

[0049] Referring to Figure 1 Fig. 1 shows a first structural diagram of a device for reducing the power consumption of an ideal diode circuit according to an embodiment of the present application. The device comprises a vehicle power module 1, an ideal diode circuit 2 and a load circuit 3.

[0050] Specifically, the anode of the vehicle power module 1 is connected with the ideal diode circuit 2; the enable end of the ideal diode circuit 2 is connected with the output end of the load circuit 3. The output end of the ideal diode circuit 2 is connected with the input end of the load circuit 3.

[0051] It should be noted that the cathode of the vehicle power module 1, the ground end of the ideal diode circuit 2 and the ground end of the load circuit 3 are grounded respectively.

[0052] In the application process, in response to the ignition signal being turned on, the vehicle power module 1 supplies power to the load circuit 3 through the ideal diode circuit 2.

[0053] That is, as shown in Figure 1 When the vehicle ignition switch is activated, the ignition signal enables the load circuit 3, and the anode of the vehicle power module 1 outputs current to supply power to the load circuit 3 through the ideal diode circuit 2.

[0054] It can be understood that after the vehicle power module 1 provides power to the load circuit 3, the ideal diode circuit 2 is enabled by the load circuit 3, so that the MOS tube in the ideal diode circuit 2 is turned on, and the load circuit 3 obtains current to work, at this time, the load circuit 3 and the ideal diode circuit 2 work normally.

[0055] In actual application, in response to the ignition signal being turned off, the load circuit 3 and the ideal diode circuit 2 stop working.

[0056] It should be noted that after the ignition signal is turned off, the load circuit 3 stops working, the load circuit 3 no longer enables the ideal diode circuit 2, and the ideal diode circuit 2 stops working.

[0057] In the embodiment of the application, by intelligently controlling the activation and deactivation of the ideal diode circuit, the problem of continuous current consumption of the ideal diode after the vehicle is turned off is solved, and the waste of static current is effectively reduced. By controlling the working state of the ideal diode circuit through the load circuit, unnecessary current flow is avoided, thereby reducing the burden on the battery and prolonging the service life of the battery. In addition, the scheme improves the reliability of the system, avoids faults caused by excessive discharge or current consumption, and ensures efficient use of the vehicle battery.

[0058] Further, referring to Figure 2 the second structural diagram of the device for reducing the power consumption of the ideal diode circuit provided by the embodiment of the application is shown.

[0059] Specifically, the ideal diode circuit 2 includes a MOS tube (such as Q1 shown in Figure 2 ) and an ideal diode control chip.

[0060] It can be understood that the source of the MOS tube is connected to the anode of the vehicle power module, and the drain of the MOS tube is connected to the input end of the load circuit.

[0061] It should be noted that the gate of the MOS tube is connected to the ideal diode control chip. The enable end of the ideal diode control chip is connected to the output end of the load circuit.

[0062] In actual application, in response to the ignition signal being turned on, the vehicle power module 1 supplies power to the load circuit 3 through the body diode of the MOS tube. The ideal diode control chip receives the high level output by the load circuit 3 to turn on the MOS tube, so that the load circuit 3 obtains current to work.

[0063] It should be noted that in the MOS tube, the source, drain and gate of the MOS tube are the main electrode structures. In addition to these main electrodes, the structure of the MOS tube itself also contains an internal diode called the body diode. This diode naturally exists between the source and drain of the MOS tube, and its direction is opposite to the working direction of the MOS tube.

[0064] The body diode usually plays a protective role in the switching process of the MOS tube, preventing reverse current flow from causing damage to the circuit. Although the MOS tube mainly relies on the voltage of the control gate to switch in normal working state, in some cases, when the MOS tube is in the off state, the body diode can still be turned on.

[0065] Therefore, when the ignition signal is turned on and the gate of the MOS tube is not fully enabled, the MOS tube is in the off state. However, due to the existence of the body diode, the vehicle power module 1 can still provide power to the load circuit 3 through the body diode.

[0066] It can be understood that the body diode is like a one-way conducting diode, when the circuit needs current, the vehicle power module 1 will flow through the body diode to the load circuit 3, providing stable power supply.

[0067] Then, the load circuit 3 outputs a high level to the ideal diode control chip to turn on the MOS tube, so that the load circuit 3 obtains current to work.

[0068] That is, when the enable end of the ideal diode control chip is activated, the MOS tube will be turned on, so that the load circuit 3 obtains current and works normally. This process is actually achieved by enabling the gate of the MOS tube, which changes from the off state to the on state, thereby allowing current to flow.

[0069] In some specific embodiments, the device further comprises a diode (such as Figure 2D1) cathode, and the diode (such as D1) anode is connected to the output terminal of the load circuit 3.

[0070] Specifically, the enable terminal of the ideal diode circuit 2 is connected to the diode (such as D1) cathode, and the diode (such as D1) anode is connected to the output terminal of the load circuit 3. Figure 2 Figure 2 Specifically, the enable terminal of the ideal diode circuit 2 is connected to the diode (such as D1) cathode, and the diode (such as D1) anode is connected to the output terminal of the load circuit 3.

[0071] Specifically, the enable terminal of the ideal diode circuit 2 is connected to the diode (such as D1) cathode, and the diode (such as D1) anode is connected to the output terminal of the load circuit 3. Figure 2 Figure 2 Specifically, the enable terminal of the ideal diode circuit 2 is connected to the diode (such as D1) cathode, and the diode (such as D1) anode is connected to the output terminal of the load circuit 3. Figure 2 Figure 3 Specifically, the enable terminal of the ideal diode circuit 2 is connected to the diode (such as D1) cathode, and the diode (such as D1) anode is connected to the output terminal of the load circuit 3.

[0072] Specifically, the enable terminal of the ideal diode circuit 2 is connected to the diode (such as D1) cathode, and the diode (such as D1) anode is connected to the output terminal of the load circuit 3. Figure 2 Figure 2 Specifically, the enable terminal of the ideal diode circuit 2 is connected to the diode (such as D1) cathode, and the diode (such as D1) anode is connected to the output terminal of the load circuit 3.

[0073] In the application process, in response to the ignition signal being disconnected, the load circuit 3 and the ideal diode control chip stop working.

[0074] It should be noted that after the ignition signal is disconnected, the load circuit 3 stops working, the load circuit 3 no longer enables the ideal diode control chip in the ideal diode circuit 2, and the ideal diode control chip is in a silent state, at which time the ideal diode control chip current is greatly reduced.

[0075] Specifically, the enable terminal of the ideal diode circuit 2 is connected to the diode (such as D1) cathode, and the diode (such as D1) anode is connected to the output terminal of the load circuit 3. Figure 3 Specifically, the enable terminal of the ideal diode circuit 2 is connected to the diode (such as D1) cathode, and the diode (such as D1) anode is connected to the output terminal of the load circuit 3.

[0076] Specifically, the enable terminal of the ideal diode circuit 2 is connected to the diode (such as D1) cathode, and the diode (such as D1) anode is connected to the output terminal of the load circuit 3.

[0077] Specifically, the enable terminal of the ideal diode circuit 2 is connected to the diode (such as D1) cathode, and the diode (such as D1) anode is connected to the output terminal of the load circuit 3.

[0078] Specifically, the enable terminal of the ideal diode circuit 2 is connected to the diode (such as D1) cathode, and the diode (such as D1) anode is connected to the output terminal of the load circuit 3.

[0079] Specifically, the enable terminal of the ideal diode circuit 2 is connected to the diode (such as D1) cathode, and the diode (such as D1) anode is connected to the output terminal of the load circuit 3.

[0080] ​​​​That is, the input end of the small power circuit and the input end of the large power circuit are connected to the drain of the MOS tube respectively.

[0081] Specifically, the second output end of the small power circuit is connected to the enable end of the large power circuit.

[0082] In the application process, in response to the ignition signal being turned on, the small power circuit outputs a high level to the ideal diode circuit based on the power supply of the vehicle power module, so that the MOS tube in the ideal diode circuit is turned on; after the MOS tube in the ideal diode circuit is turned on, the small power circuit enables the large power circuit, and the small power circuit and the large power circuit obtain current for work.

[0083] It can be understood that, in combination with the contents shown in Figure 2 and Figure 3 , in response to the ignition signal being turned on, the vehicle power module supplies power to the small power circuit through the body diode of the MOS tube, and the small power circuit outputs a high level to the enable end of the ideal diode control chip to start the conduction function of the MOS tube. Thus, the small power circuit enables the large power circuit, and the small power circuit and the large power circuit obtain current for normal work.

[0084] In actual application, in response to the ignition signal being turned off, the small power circuit and the large power circuit, and the ideal diode circuit stop working.

[0085] It should be noted that, in combination with the contents shown in Figure 2 and Figure 3 , in response to the ignition signal being turned off, the small power circuit and the large power circuit stop working, the small power circuit no longer enables the ideal diode control chip, the ideal diode control chip stops working and is in a silent state. At the same time, the current of the ideal diode control chip rapidly decreases.

[0086] In the embodiment of the present application, by intelligently controlling the activation and deactivation of the ideal diode control chip, the problem of continuous current consumption of the ideal diode after the vehicle is turned off is solved, and the waste of static current is effectively reduced. By controlling the working state of the ideal diode control chip and the MOS tube through the small power circuit and the large power circuit, unnecessary current flow is avoided, thereby reducing the burden on the battery and prolonging the service life of the battery. In addition, the scheme enhances the stability of the system, prevents faults caused by excessive discharge or unnecessary current consumption, and ensures the best use efficiency of the vehicle battery.

[0087] Referring to Figure 4 , a flowchart of a method for reducing the power consumption of an ideal diode circuit is shown, which is applied to the device for reducing the power consumption of an ideal diode circuit provided in the embodiment of the present application. The method comprises:

[0088] Step S401: In response to the ignition signal being turned on, the vehicle power module supplies power to the load circuit through the ideal diode circuit.

[0089] In the process of implementing step S401, in response to the ignition signal being turned on, the vehicle power module supplies power to the ideal diode circuit; the body diode of the MOS tube in the ideal diode circuit supplies power to the load circuit.

[0090] Specifically, in response to the ignition signal being turned on, the vehicle power module supplies power to the small power circuit in the load circuit through the body diode of the MOS tube in the ideal diode circuit, and the small power circuit outputs a high level to the enable end of the ideal diode control chip in the ideal diode circuit to start the conduction function of the MOS tube.

[0091] Step S402: The load circuit enables the ideal diode circuit, so that the MOS tube in the ideal diode circuit is turned on, and the load circuit obtains current to work.

[0092] In the process of implementing step S402, the load circuit inputs a high level to the ideal diode circuit to enable the ideal diode circuit, so that the MOS tube in the ideal diode circuit is turned on; after the load circuit obtains current, the small power circuit in the load circuit enables the large power circuit in the load circuit, and the small power circuit and the large power circuit work.

[0093] That is, the small power circuit in the load circuit outputs a high level to the enable end of the ideal diode control chip to start the conduction function of the MOS tube, so that the small power circuit enables the large power circuit in the load circuit, and the small power circuit and the large power circuit obtain current to work normally.

[0094] Step S403: In response to the ignition signal being turned off, the load circuit and the ideal diode circuit stop working.

[0095] In the embodiment of the application, by intelligently controlling the activation and deactivation of the ideal diode control chip, the problem of continuous current consumption of the ideal diode after the vehicle is turned off is solved, and the waste of static current is effectively reduced. By controlling the working state of the ideal diode control chip and the MOS tube through the small power circuit and the large power circuit, unnecessary current flow is avoided, thereby reducing the burden on the battery and prolonging the service life of the battery. In addition, the scheme enhances the stability of the system, prevents faults caused by excessive discharge or unnecessary current consumption, and ensures the optimal use efficiency of the vehicle battery.

[0096] The application also provides a storage medium having program instructions stored therein, which are loaded and executed by a processor to implement any one of the above-mentioned methods for reducing the power consumption of the ideal diode circuit.

[0097] This application also provides a computer device, such as Figure 5 As shown, the computer device includes a processor 501 and a memory 502, which are connected via a bus. The memory stores program instructions; the processor calls these program instructions to execute any of the above-described data association analysis method embodiments. The processor can be the CPU of the terminal, or an integrated MCU within the terminal, or a combination of a CPU and an MCU. Furthermore, the processor contains a kernel that retrieves the corresponding program from the memory; one or more kernels can be configured. The memory may include non-permanent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, like read-only memory (ROM) or flash RAM, and includes at least one memory chip.

[0098] This application also provides a computer software product comprising executable computer instructions, which, when executed by a processor of a computer device, are used for a method of reducing power consumption in an ideal diode circuit.

[0099] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, for system or system embodiments, since they are basically similar to method embodiments, the description is relatively simple, and relevant parts can be referred to the descriptions in the method embodiments. The systems and system embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without creative effort.

[0100] Those skilled in the art will further recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0101] The foregoing description of the disclosed embodiments enables a person skilled in the art to make or use the application. Modifications of these embodiments will occur to persons of skill in the art, and, while certain modifications are discussed, it is desired to be protected in accordance with the scope of this application, which is defined in the following claims.

Claims

1. A device for reducing power consumption in an ideal diode circuit, characterized in that, The device includes: a vehicle electrical module, an ideal diode circuit, and a load circuit; The anode of the vehicle electrical module is connected to the ideal diode circuit; the enable terminal of the ideal diode circuit is connected to the output terminal of the load circuit. The output terminal of the ideal diode circuit is connected to the input terminal of the load circuit; In response to the ignition signal being turned on, the vehicle electrical module supplies power to the load circuit through the ideal diode circuit; the load circuit enables the ideal diode circuit, causing the MOSFET in the ideal diode circuit to conduct, and the load circuit receives current to operate; in response to the ignition signal being turned off, the load circuit and the ideal diode circuit stop operating.

2. The apparatus according to claim 1, characterized in that, The ideal diode circuit includes: a MOSFET and an ideal diode control chip; The common terminal of the source of the MOS transistor, which is connected to the ideal diode control chip, is connected to the anode of the vehicle electrical module. The common terminal of the drain of the MOS transistor, which is connected to the ideal diode control chip, is connected to the input terminal of the load circuit. The gate of the MOS transistor is connected to the ideal diode control chip; The enable terminal of the ideal diode control chip is connected to the output terminal of the load circuit; In response to the ignition signal being turned on, the vehicle electrical module supplies power to the load circuit through the body diode of the MOSFET; the ideal diode control chip receives the high level output from the load circuit to turn on the MOSFET, so that the load circuit receives current and operates; in response to the ignition signal being turned off, the load circuit and the ideal diode control chip stop operating.

3. The apparatus according to claim 1, characterized in that, The load circuit includes: a low-power circuit and a high-power circuit; The first output terminal of the low-power circuit is connected to the enable terminal of the ideal diode circuit. The input terminals of the low-power circuit and the high-power circuit are respectively connected to the output terminal of the ideal diode circuit. The second output terminal of the low-power circuit is connected to the enable terminal of the high-power circuit. In response to the ignition signal being turned on, the low-power circuit outputs a high level to the ideal diode circuit based on the power supply of the vehicle power module, so as to turn on the MOSFET in the ideal diode circuit; after the MOSFET in the ideal diode circuit is turned on, the low-power circuit enables the high-power circuit, and the low-power circuit and the high-power circuit obtain current to operate; In response to the ignition signal being disconnected, the low-power circuit, the high-power circuit, and the ideal diode circuit cease operation.

4. The apparatus according to claim 1, characterized in that, The device further includes: a diode; The enable terminal of the ideal diode circuit is connected to the cathode of the diode, and the anode of the diode is connected to the output terminal of the load circuit.

5. A method for reducing power consumption in an ideal diode circuit, characterized in that, Applied to the apparatus of any one of claims 1 to 4, the method comprises: In response to the ignition signal being turned on, the vehicle electrical module supplies power to the load circuit through an ideal diode circuit; The load circuit enables the ideal diode circuit, causing the MOS transistor in the ideal diode circuit to conduct, and the load circuit receives current to operate. In response to the ignition signal being disconnected, the load circuit and the ideal diode circuit cease to operate.

6. The method according to claim 5, characterized in that, In response to the ignition signal being turned on, the vehicle electrical module supplies power to the load circuit through an ideal diode circuit, including: In response to the ignition signal being turned on, the vehicle electrical module supplies power to the ideal diode circuit; In the ideal diode circuit, the body diode of the MOS transistor supplies power to the load circuit.

7. The method according to claim 5, characterized in that, The load circuit enables the ideal diode circuit, causing the MOSFET in the ideal diode circuit to conduct, and the load circuit receives current to operate, including: The load circuit inputs a high level to the ideal diode circuit to enable the ideal diode circuit, thereby turning on the MOSFET in the ideal diode circuit. After the load circuit receives current, the low-power circuit in the load circuit enables the high-power circuit in the load circuit, and the low-power circuit and the high-power circuit operate.

8. A computer device, characterized in that, include: A processor and a memory are connected via a bus; wherein the processor is used to call and execute a program stored in the memory; The memory is used to store a program for implementing the method for reducing power consumption of an ideal diode circuit as described in any one of claims 5 to 7.

9. A storage medium, characterized in that, The storage medium stores computer-executable instructions for performing the method for reducing power consumption of an ideal diode circuit as described in any one of claims 5 to 7.

10. A computer software product, characterized in that, Includes executable computer instructions, which, when executed by a processor of a computer device, are used to implement the method for reducing power consumption of an ideal diode circuit as described in any one of claims 5 to 7.

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