An ultra-low power consumption method for an HPLC and RF dual-mode communication module

Abstract

This invention discloses an ultra-low power consumption method for an HPLC and RF dual-mode communication module, including low-power component selection, low-power circuit configuration, low-power dynamic switching of peripheral circuits, low-power main control, and backup power supply. The invention employs low-power components, including transistors and MOS circuit switching elements with low leakage current, low-leakage-current chips, and high-efficiency power chips. The low-power circuit configuration uses power on / off circuits with low leakage current, and configures the main control I / O state and peripheral current draw-in / sinking for minimal power consumption. The peripheral circuit is dynamically designed to switch the FALSH voltage, HPLC carrier transmitter module voltage, and RF transmitter module voltage to minimize power consumption. The low-power main control step uses on-demand dynamic switching of the internal RF transmitter unit and HPLC transmitter unit, dynamically reducing the main control operating frequency and core voltage based on computing power requirements.

Description

Technical Field

[0001] This invention relates to the field of HPLC and RF dual-mode communication technology, and specifically to an ultra-low power consumption solution for an HPLC and RF dual-mode communication module. Background Technology

[0002] The low-voltage distribution area power communication network is the foundation of the power user information collection system. It now adopts dual-mode communication of high-speed power line carrier (HPLC) and low-power wireless (RF) to achieve the goal of stable, reliable and full coverage of the communication system.

[0003] As a massive Internet of Things, the low-voltage distribution area power line communication network has numerous device nodes, numbering in the hundreds of millions. The dual-mode communication module increases power consumption compared to the single-phase carrier module. Firstly, the large number of nodes leads to increased power consumption, which contradicts the goal of low power consumption and loss reduction. Secondly, the power supply capacity of some metering equipment and intelligent production equipment installed over the decades is limited, which may cause malfunctions and safety hazards. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an ultra-low power consumption method for an HPLC and RF dual-mode communication module, which can significantly reduce the power consumption of existing products and improve system stability, thereby solving the technical problems mentioned in the background.

[0005] The ultra-low power consumption method of the HPLC and RF dual-mode communication module of the present invention is achieved through the following technical solutions: including low power consumption steps for component selection, low power consumption steps for circuit configuration, low power consumption steps for dynamic switching of peripheral circuits, low power consumption steps for main control, and backup power supply steps.

[0006] Low-power component selection steps: Use low-power, high-efficiency components;

[0007] The circuit configuration steps for low power consumption include: configuring the main control I / O state with minimum power consumption and external pull-in current; using low power circuit for optocoupler sampling; ensuring no leakage and current limiting when the light-emitting diode is turned off; and ensuring no leakage and low conduction loss when the MOSFET switching circuit is turned off.

[0008] Low-power dynamic switching steps of peripheral circuits: On-demand switching of idle FALSH voltage, HPLC carrier transmission voltage, and RF transmission voltage;

[0009] Low power consumption steps for main control: The internal RF transmission unit and HPLC carrier transmission unit are switched on demand, and the main control operating frequency is dynamically reduced based on computing power requirements, further reducing the main control core voltage;

[0010] The backup power supply uses supercapacitors.

[0011] As a preferred technical solution, the component selection steps for low power consumption are as follows: low power crystal, low power high conversion efficiency light-emitting diode, low leakage current low dropout diode, low leakage current ESD device, low leakage current transistor, low power optocoupler, low internal resistance low leakage current MOS circuit, low power RF chip, low power main controller selection, and high efficiency power supply chip.

[0012] As a preferred technical solution, the circuit configuration low-power steps include: using an LED lamp configuration circuit, a 3.3V switch configuration circuit, an ESD configuration circuit, an optocoupler zero-crossing sampling configuration circuit, and pull-up / pull-down configuration circuits.

[0013] LED light configuration circuit: Uses 0603 packaged LED light, current limiting connection resistor R1, one of the pins of resistor R1 is connected to the main control unit, the main control unit is configured as high impedance when the light is dark and open drain input when the light is bright;

[0014] The 3.3V switch configuration circuit includes a PMOS switching transistor Q1, a pull-up resistor R2, and a current-limiting resistor R5 connected to the control signal. One pin of resistor R5 is connected to the main control unit. The main control unit is configured with high impedance when 3.3V is off and weak pull-down output when 3.3V is on. The ESD configuration circuit has a signal line connected to the main control unit. When the signal is invalid, the corresponding control pin of the main control unit is configured with high impedance.

[0015] Optocoupler zero-crossing sampling configuration circuit: includes D4, R7, and R8 connected in series. The remaining pin of R8 is connected to pin 1 of optocoupler U1 KD1010D. R6 and C3 are connected in parallel to pin 1 of optocoupler U1 and the N line. The collector of transistor Q2 2SC2412 is connected to pin 1 of optocoupler U1. The N line is connected to the base of transistor Q2 through R3. C1 is connected to the base and emitter of transistor Q2. The emitter of transistor Q2 is connected to the N line through D2. The emitter of transistor Q2 is connected to pin 1 of U1 through D3. Pin 4 of optocoupler U1 KD1010D is pulled up to 3.3V. Pin 3 of optocoupler U1 KD1010D is pulled down to ground through R4.

[0016] The pull-up and pull-down configuration circuit includes a pull-up resistor R9 and a pull-down resistor R10, respectively. One pin of the pull-up resistor R9 is connected to the signal line that needs to be pulled up, and one pin of the pull-down resistor R10 is connected to the signal line that needs to be pulled up.

[0017] As a preferred technical solution, the peripheral circuit dynamic switching low-power step: The peripheral circuit dynamic switching low-power step adopts a switch FALSH, a switch RF transmitter module circuit and a switch HPLC transmitter module circuit.

[0018] FALSH Switch: A FASH switch circuit is adopted. The FASH switch circuit includes a PMOS switching transistor Q3, a pull-up resistor R11, and a current-limiting resistor R14 for the control signal. One of the pins of resistor R14, ON / FLASH_FLASH, is connected to the main control unit. When the FLASH is off, it is configured as high impedance, and when the FLASH is on, it is configured as a weak pull-down output. The FALSH signal pins CS, CLK, MISO, MOSI, HOLD, and WP are connected to the corresponding control pins of the main control unit. When the FLASH is off, it is configured as high impedance, and when it is on, it is configured as the working mode.

[0019] RF transmitter module switching circuit: The RF transmitter module power switch circuit is adopted. The RF transmitter module power switch circuit includes a PMOS switching transistor Q4, a pull-up resistor R16, and a control signal connected to a current-limiting resistor R18. One of the pins of resistor R18, ON / OFF_RF, is connected to the main control unit. When the RF transmitter module is turned off, it is configured as high impedance, and when it is turned on, it is configured as weak pull-down output.

[0020] HPLC emission module switching circuit: The HPLC emission module power switch circuit is adopted. The HPLC emission module power switch circuit includes a PMOS switching transistor Q5 with a pull-up resistor R19 and a current-limiting resistor R22. The NPN switching transistor Q6 is a pull-down transistor with a pull-down resistor R27. The control signal is connected to the current-limiting resistor R26. One of the pins of resistor R26, EN_HPLC, is connected to the main control unit. When the HPLC emission module is turned off, it is configured as high impedance, and when it is turned on, it is configured as weak pull-down output.

[0021] As a preferred technical solution, the main control low power consumption steps are as follows: the main control dynamically switches the internal RF transmission unit and HPLC transmission unit by setting the register on demand, dynamically reduces the main control operating frequency based on computing power requirements, and controls the peripheral circuit to dynamically reduce the main control core voltage.

[0022] The peripheral circuit dynamically reduces the main control core voltage: a 3.3V to 1.2 / 0.9V circuit is used. The 3.3V to 1.2 / 0.9V circuit includes an ultra-low power step-down chip ETA2893, feedback resistors R23 and R24, and the switching transistor Q7 is an NMOS. The control signal is connected to the current-limiting resistor R28. One of the pins of resistor R28, SW_1.2V / 0.9V, is connected to the main control unit. When the output is 0.9V, the corresponding control pin of the main control is configured as high impedance, and when the output is 1.2V, the corresponding control pin of the main control is configured as a pull-up output.

[0023] As a preferred technical solution, supercapacitors: store and supply energy, smooth power peaks, and meet the impact power requirements of power switches.

[0024] The beneficial effects of this invention are:

[0025] 1. By comprehensively considering power consumption reduction from system design, component selection, circuit configuration design, dynamic circuit state setting, and main control unit state setting, the average power consumption is greatly reduced. The implementation scheme of this invention can also be transferred to other products to achieve systematic power reduction.

[0026] 2. A method for setting the status of the external pins of the main control unit is proposed. For the main control unit and the external circuit pins, a one-to-one status setting is provided for both the working and non-working states of the pins, which greatly reduces leakage current.

[0027] 3. It significantly reduces average load power consumption, and combined with a large base, it strongly supports the idea of ​​low power consumption and energy saving.

[0028] 4. It significantly reduces power consumption under impact loads and is well-suited for use with HPLC and RF dual-mode communication modules and terminals;

[0029] 5. The proposed sub-circuit modules offer comprehensive reference value for low-power design of other product circuits. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the main framework for implementing the ultra-low power consumption method of the HPLC and RF dual-mode communication module of the present invention.

[0032] Figure 2 This is the main circuit framework of the ultra-low power consumption method for the HPLC and RF dual-mode communication module of the present invention.

[0033] Figure 3 This is a circuit dynamic operation low-power framework diagram of the ultra-low power method of the HPLC and RF dual-mode communication module of the present invention.

[0034] Figure 4 This is a circuit diagram of the ultra-low power consumption method of the HPLC and RF dual-mode communication module of the present invention.

[0035] Appendix Figure 4 Marker explanation:

[0036] 1. LED light configuration circuit; 2. 3.3V switch configuration circuit; 3. ESD configuration circuit; 4. Optocoupler zero-crossing sampling configuration circuit; 5. Pull-up / pull-down configuration circuit; 6. FLASH switch circuit; 7. RF transmitter module power switch circuit; 8. HPLC transmitter module power switch circuit; 9. 12V to 3.3V circuit; 10. 3.3V to 1.2 / 0.9V circuit; 11. Supercapacitor circuit. Detailed Implementation

[0037] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0038] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0039] In the description of this invention, it should be understood that the terms "one end", "the other end", "outer side", "upper", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this invention and simplifying the description, and are not intended to 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 invention.

[0040] Furthermore, in the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] The terms used in this invention, such as “above,” “over,” “below,” and “under,” indicating spatial relative position, are for illustrative purposes to describe the relationship of one unit or feature relative to another unit or feature as shown in the accompanying drawings. The terms of spatial relative position may be intended to include different orientations of the device in use or operation other than those shown in the figures. For example, if the device in the figures is flipped, a unit described as being “below” or “under” other units or features would be located “above” other units or features. Therefore, the exemplary term “under” can encompass both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or otherwise) and the spatially related descriptive terms used herein shall be interpreted accordingly.

[0042] In this invention, unless otherwise explicitly specified and limited, the terms "set," "socket," "connect," "through," and "plug-in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0043] like Figures 1-4 As shown, the present invention provides an ultra-low power consumption method for an HPLC and RF dual-mode communication module, including a component selection low-power consumption step, a circuit configuration low-power consumption step, a peripheral circuit dynamic switching low-power consumption step, a main control low-power consumption step, and a backup power supply step.

[0044] Low-power component selection steps: Use low-power, high-efficiency components;

[0045] The circuit configuration steps for low power consumption include: configuring the main control I / O state with minimum power consumption and external pull-in current; using low power circuit for optocoupler sampling; ensuring no leakage and current limiting when the light-emitting diode is turned off; and ensuring no leakage and low conduction loss when the MOSFET switching circuit is turned off.

[0046] Low-power dynamic switching steps of peripheral circuits: On-demand switching of idle FALSH voltage, HPLC carrier transmission voltage, and RF transmission voltage;

[0047] Low power consumption steps for main control: The internal RF transmission unit and HPLC carrier transmission unit are switched on demand, and the main control operating frequency is dynamically reduced based on computing power requirements, further reducing the main control core voltage;

[0048] The backup power supply uses supercapacitors.

[0049] In this embodiment, the low-power component selection steps include: using low-power crystals, low-power high-conversion-rate light-emitting diodes, low-leakage-current and low-dropout diodes, low-leakage-current ESD devices, low-leakage-current transistors, low-power optocouplers, low-internal-resistance and low-leakage-current MOS circuits, low-power RF chips, low-power main controller selection, and high-efficiency power supply chips.

[0050] In this embodiment, the low-power circuit configuration steps are as follows: LED lamp configuration circuit, 3.3V switch configuration circuit, ESD configuration circuit, optocoupler zero-crossing sampling configuration circuit, and pull-up / pull-down configuration circuit;

[0051] LED light configuration circuit: Uses 0603 packaged LED light, current limiting connection resistor R1, one of the pins of resistor R1 is connected to the main control unit, the main control unit is configured as high impedance when the light is dark and open drain input when the light is bright;

[0052] The 3.3V switch configuration circuit includes a PMOS switching transistor Q1, a pull-up resistor R2, and a current-limiting resistor R5 connected to the control signal. One pin of resistor R5 is connected to the main control unit. The main control unit is configured with high impedance when 3.3V is off and weak pull-down output when 3.3V is on. The ESD configuration circuit has a signal line connected to the main control unit. When the signal is invalid, the corresponding control pin of the main control unit is configured with high impedance.

[0053] The circuit configuration does not refer to this specific circuit; it generally refers to the fact that this type of circuit connection can be configured using this approach.

[0054] Optocoupler zero-crossing sampling configuration circuit: includes D4, R7, and R8 connected in series. The remaining pin of R8 is connected to pin 1 of optocoupler U1 KD1010D. R6 and C3 are connected in parallel to pin 1 of optocoupler U1 and the N line. The collector of transistor Q2 2SC2412 is connected to pin 1 of optocoupler U1. The N line is connected to the base of transistor Q2 through R3. C1 is connected to the base and emitter of transistor Q2. The emitter of transistor Q2 is connected to the N line through D2. The emitter of transistor Q2 is connected to pin 1 of U1 through D3. Pin 4 of optocoupler U1 KD1010D is pulled up to 3.3V. Pin 3 of optocoupler U1 KD1010D is pulled down to ground through R4.

[0055] The pull-up and pull-down configuration circuit includes a pull-up resistor R9 and a pull-down resistor R10, respectively. One pin of the pull-up resistor R9 is connected to the signal line that needs to be pulled up, and one pin of the pull-down resistor R10 is connected to the signal line that needs to be pulled up.

[0056] While meeting the requirements for pull-up / pull-down strength and signal strength, resistors with larger resistance values ​​should be selected as much as possible. The pull-up / pull-down configuration circuit mentioned does not specifically refer to this particular circuit, but generally refers to this type of circuit connection that can be configured using this approach.

[0057] In this embodiment, the peripheral circuit dynamic switching low-power step adopts a switch FALSH, a switch RF transmitter module circuit, and a switch HPLC transmitter module circuit.

[0058] FALSH Switch: A FASH switch circuit is adopted. The FASH switch circuit includes a PMOS switching transistor Q3, a pull-up resistor R11, and a current-limiting resistor R14 for the control signal. One of the pins of resistor R14, ON / FLASH_FLASH, is connected to the main control unit. When the FLASH is off, it is configured as high impedance, and when the FLASH is on, it is configured as a weak pull-down output. The FALSH signal pins CS, CLK, MISO, MOSI, HOLD, and WP are connected to the corresponding control pins of the main control unit. When the FLASH is off, it is configured as high impedance, and when it is on, it is configured as the working mode.

[0059] RF transmitter module switching circuit: The RF transmitter module power switch circuit is adopted. The RF transmitter module power switch circuit includes a PMOS switching transistor Q4, a pull-up resistor R16, and a control signal connected to a current-limiting resistor R18. One of the pins of resistor R18, ON / OFF_RF, is connected to the main control unit. When the RF transmitter module is turned off, it is configured as high impedance, and when it is turned on, it is configured as weak pull-down output.

[0060] HPLC emission module switching circuit: The HPLC emission module power switch circuit is adopted. The HPLC emission module power switch circuit includes a PMOS switching transistor Q5 with a pull-up resistor R19 and a current-limiting resistor R22. The NPN switching transistor Q6 is a pull-down transistor with a pull-down resistor R27. The control signal is connected to the current-limiting resistor R26. One of the pins of resistor R26, EN_HPLC, is connected to the main control unit. When the HPLC emission module is turned off, it is configured as high impedance, and when it is turned on, it is configured as weak pull-down output.

[0061] In this embodiment, the main control low-power step is as follows: the main control dynamically switches the internal RF transmission unit and HPLC transmission unit by setting the register on demand, dynamically reduces the main control operating frequency based on computing power requirements, and controls the peripheral circuit to dynamically reduce the main control core voltage.

[0062] The peripheral circuit dynamically reduces the main control core voltage: a 3.3V to 1.2 / 0.9V circuit is used. The 3.3V to 1.2 / 0.9V circuit includes an ultra-low power step-down chip ETA2893, feedback resistors R23 and R24, and the switching transistor Q7 is an NMOS. The control signal is connected to the current-limiting resistor R28. One of the pins of resistor R28, SW_1.2V / 0.9V, is connected to the main control unit. When the output is 0.9V, the corresponding control pin of the main control is configured as high impedance, and when the output is 1.2V, the corresponding control pin of the main control is configured as a pull-up output.

[0063] In this embodiment, the supercapacitor stores and supplies energy, smooths out power peaks, and meets the surge power requirements during power switching.

[0064] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A method for ultra-low power consumption of a HPLC and RF dual-mode communication module, characterized by: This includes low-power steps for component selection, low-power steps for circuit configuration, low-power steps for dynamic switching of peripheral circuits, low-power steps for main control, and backup power supply steps. Among them, the low-power component selection step is to use low-power, high-efficiency components; The circuit configuration steps for low power consumption include: configuring the main control I / O state with minimum power consumption and external pull-in current; using low power circuit for optocoupler sampling; ensuring no leakage and current limiting when the light-emitting diode is turned off; and ensuring no leakage and low conduction loss when the MOSFET switching circuit is turned off. Low-power dynamic switching steps of peripheral circuits: On-demand switching of idle FALSH voltage, HPLC carrier transmission voltage, and RF transmission voltage; Low power consumption steps for main control: On-demand switching of internal RF transmission unit and HPLC carrier transmission unit, dynamically reducing the main control operating frequency and reducing the main control core voltage based on computing power requirements; The backup power supply uses supercapacitors; Low-power dynamic switching steps for peripheral circuits: The circuit employs a switch-flash, a switch-RF emission module circuit, and a switch-HPLC emission module circuit. The FALSH switch uses a FASH switch circuit, which includes a PMOS switching transistor Q3, a pull-up resistor R11, and a current-limiting resistor R14 for the control signal. One pin of resistor R14, ON / FLASH_FLASH, is connected to the main control unit. When the FLASH is off, it is configured as high impedance, and when the FLASH is on, it is configured as a weak pull-down output. The FALSH signal pins CS, CLK, MISO, MOSI, HOLD, and WP are connected to the corresponding control pins of the main control unit. When the FLASH is off, it is configured as high impedance, and when it is on, it is configured as the working mode. RF transmitter module switching circuit: The RF transmitter module power switch circuit is adopted. The RF transmitter module power switch circuit includes a PMOS switching transistor Q4, a pull-up resistor R16, and a control signal connected to a current-limiting resistor R18. One of the pins of resistor R18, ON / OFF_RF, is connected to the main control unit. When the RF transmitter module is turned off, it is configured as high impedance, and when it is turned on, it is configured as weak pull-down output. HPLC emission module switching circuit: An HPLC emission module power switch circuit is used. This circuit includes a PMOS switching transistor Q5 connected to pull-up resistor R19 and current-limiting resistor R22; an NPN switching transistor Q6 connected to pull-down resistor R27; and a control signal connected to current-limiting resistor R26. One pin of resistor R26, EN_HPLC, is connected to the main control unit. When the HPLC emission module is off, it is configured as high impedance; when it is on, it is configured as a weak pull-down output. Main control low-power operation steps: The main control adopts a dynamic switching mechanism that sets registers on demand to switch the internal RF and HPLC emission units, dynamically reducing the main control operating frequency based on computing power requirements, and controlling the peripheral circuits to dynamically reduce the main control core voltage. The peripheral circuit dynamically reduces the main control core voltage: a 3.3V to 1.2V / 0.9V circuit is used. The 3.3V to 1.2V / 0.9V circuit includes an ultra-low power step-down chip ETA2893, feedback resistors R23 and R24, and an NMOS switch Q7. The control signal is connected to a current-limiting resistor R28. One pin of resistor R28, SW_1.2V / 0.9V, is connected to the main control unit. When the output is 0.9V, the corresponding control pin of the main control is configured as high impedance, and when the output is 1.2V, the corresponding control pin of the main control is configured as a pull-up output.

2. The ultra-low power method of HPLC and RF dual-mode communication module according to claim 1, characterized in that: Low-power component selection steps: It employs low-power crystals, low-power high-conversion-rate light-emitting diodes, low-leakage-current and low-dropout diodes, low-leakage-current ESD components, low-leakage-current transistors, low-power optocouplers, low-internal-resistance and low-leakage-current MOS circuits, low-power RF chips, low-power main controller selection, and high-efficiency power chips.

3. The ultra-low power method of HPLC and RF dual-mode communication module according to claim 1, characterized in that: The low-power circuit configuration steps are as follows: LED lamp configuration circuit, 3.3V switch configuration circuit, ESD configuration circuit, optocoupler zero-crossing sampling configuration circuit, and pull-up / pull-down configuration circuit; The LED lamp configuration circuit uses a 0603 packaged LED lamp and a current-limiting connection resistor R1. One of the pins of resistor R1 is connected to the main control unit. The main control unit is configured as a high-impedance input when the lamp is dark and an open-drain input when the lamp is bright. The 3.3V switch configuration circuit includes a PMOS switching transistor Q1, a pull-up resistor R2, a control signal connected to a current-limiting resistor R5, and one pin of resistor R5 connected to the main control unit. The main control unit is configured as high impedance when the corresponding control pin is turned off and as weak pull-down output when the 3.3V is turned on. The signal lines in the ESD configuration circuit are connected to the main control unit. When the signal is invalid, the corresponding control pin of the main control unit is configured to high impedance. Optocoupler zero-crossing sampling configuration circuit: includes D4, R7, and R8 connected in series. The remaining pin of R8 is connected to pin 1 of optocoupler U1 KD1010D. R6 and C3 are connected in parallel to pin 1 of optocoupler U1 and the N line. The collector of transistor Q2 2SC2412 is connected to pin 1 of optocoupler U1. The N line is connected to the base of transistor Q2 through R3. C1 is connected to the base and emitter of transistor Q2. The emitter of transistor Q2 is connected to the N line through D2. The emitter of transistor Q2 is connected to pin 1 of U1 through D3. Pin 4 of optocoupler U1 KD1010D is pulled up to 3.3V. Pin 3 of optocoupler U1 KD1010D is pulled down to ground through R4. The pull-up and pull-down configuration circuit includes a pull-up resistor R9 and a pull-down resistor R10, respectively. One pin of the pull-up resistor R9 is connected to the signal line that needs to be pulled up, and one pin of the pull-down resistor R10 is connected to the signal line that needs to be pulled up.

4. The ultra-low power method of HPLC and RF dual-mode communication module according to claim 1, characterized in that: in, Supercapacitors are used for energy storage and supply, smoothing power peaks and meeting the surge power requirements of power switches.

Images