Mobile power source program control circuit and program control mobile source integrated machine

Abstract

The present disclosure provides a mobile power source programming circuit and a programming mobile source integrated machine. The circuit comprises a source load switching module and a power source programmer; the source load switching module comprises a source load switching circuit and a battery state detection circuit, the source load switching circuit comprises a source load switcher, a first electronic switch tube and a second electronic switch tube; the battery state detection circuit comprises a detection inductor, a first resistor, a first capacitor and a second capacitor, and the first end of the detection inductor is connected with the switching output end of the source load switcher. When the battery is switched between the load and the power source state, the induced voltage change on the detection inductor is detected, which facilitates the detection of the battery state, and then the power source programmer outputs a PWM control signal to the source load switcher through the PWM output end according to the switching condition of the battery state, so as to control the on-off state of the first electronic switch tube and the second electronic switch tube, thereby effectively and accurately switching the battery state.

Description

Technical Field

[0001] This disclosure relates to the field of mobile power technology, and in particular to a mobile power programmable circuit and a programmable mobile power carrier integrated machine. Background Technology

[0002] With the rapid development of science and technology, people's living standards have improved significantly. Portable electrical devices, ranging from small mobile phones to large new energy vehicles, have become an indispensable part of people's lives. To facilitate charging while on the go, engineers have developed a portable charging power supply containing a rechargeable battery. Generally, portable power supplies provide power to mobile communication tools or small portable smart processors. Existing portable power supplies use a single port for charging and discharging, integrating both ports onto a single device.

[0003] However, existing power banks typically identify charging / discharging transitions based on whether a charger is connected. They fail to identify transitions when the power bank is acting as a load, even though it doesn't need to be connected to a charger and still consumes external power. Utility Model Content

[0004] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a mobile power supply programmable circuit and a programmable mobile power source integrated machine that effectively improves the accuracy of switching between power supply state and load energy consumption state.

[0005] The purpose of this disclosure is achieved through the following technical solution: A mobile power bank programmable control circuit includes: a source-load switching module and a power programmable controller; the source-load switching module includes a source-load switching circuit and a battery status detection circuit, the source-load switching circuit includes a source-load switcher, a first electronic switch transistor, and a second electronic switch transistor, the switching output terminal of the source-load switcher is respectively connected to the second terminal of the first electronic switch transistor and the first terminal of the second electronic switch transistor, the first terminal of the first electronic switch transistor is used to connect to a reference power supply, the control terminal of the first electronic switch transistor is connected to the load control terminal of the source-load switcher, the control terminal of the second electronic switch transistor is connected to the power control terminal of the source-load switcher, and the second terminal of the second electronic switch transistor is connected to power ground; the battery status detection circuit includes a detection inductor, a first resistor, a first capacitor, and a second capacitor, and so on. The first end of the detection inductor is connected to the switching output terminal of the source-load switcher. The first end of the detection inductor is also connected to the first end of the first capacitor. The second end of the first capacitor is connected to the second end of the second capacitor. The second end of the detection inductor is connected to the first end of the first resistor and the first end of the second capacitor, respectively. The second end of the first resistor is connected to the second end of the second capacitor. The second end of the first resistor is used to connect to the positive terminal of the battery. The PWM output terminal of the power supply controller is connected to the PWM input terminal of the source-load switcher. The sampling common terminal of the power supply controller is connected to the second end of the first capacitor. The AC sampling terminal of the power supply controller is connected to the first end of the first capacitor. The DC sampling terminal of the power supply controller is connected to the first end of the second capacitor.

[0006] In one embodiment, the battery state detection circuit further includes a second resistor, the first end of which is connected to the first end of the detection inductor, and the second end of which is connected to the first end of the first capacitor.

[0007] In one embodiment, the battery state detection circuit further includes a third resistor, the first end of which is connected to the first end of the first capacitor, and the second end of which is connected to the second end of the first capacitor.

[0008] In one embodiment, the battery state detection circuit further includes a fourth resistor, the first end of which is connected to the second end of the detection inductor, and the second end of which is connected to the first end of the second capacitor.

[0009] In one embodiment, the battery state detection circuit further includes a fifth resistor, the first end of which is connected to the second end of the first resistor, and the second end of which is connected to the second end of the second capacitor.

[0010] In one embodiment, the battery state detection circuit further includes a third capacitor, and the second end of the first resistor is connected to the power supply ground through the third capacitor.

[0011] In one embodiment, the battery state detection circuit further includes an electrolytic capacitor, with the second end of the first resistor connected to the positive terminal of the electrolytic capacitor, and the negative terminal of the electrolytic capacitor connected to the power supply ground.

[0012] In one embodiment, the source-load switching circuit further includes a sixth resistor, and the load control terminal of the source-load switch is connected to the control terminal of the first electronic switch through the sixth resistor.

[0013] In one embodiment, the source-carrier switching circuit further includes a seventh resistor, and the power control terminal of the source-carrier switch is connected to the control terminal of the second electronic switch through the seventh resistor.

[0014] A programmable mobile power source carrier integrated machine includes the mobile power supply programmable circuit described in any of the above embodiments.

[0015] Compared with the prior art, this disclosure has at least the following advantages: When the battery switches between load and power supply states, the change in induced voltage on the inductor is detected, causing the voltage difference at the three sampling terminals of the power controller to change accordingly. This facilitates the detection of the battery state. Based on the battery state switching, the power controller outputs a PWM control signal to the source-load switch via the PWM output terminal to control the on / off state of the first and second electronic switches, thereby effectively and accurately switching the battery state. Specifically, when the battery is acting as a power source, the first electronic switch is turned on and the second electronic switch is turned off; when the battery is acting as a load, the first electronic switch is turned off and the second electronic switch is turned on. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a circuit diagram of a mobile power supply programmable circuit in one embodiment; Figure 2 This is a circuit diagram of a source-carrier switching module in one embodiment; Figure 3 This is a schematic diagram of a power supply programmable controller in one embodiment. Detailed Implementation

[0018] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0019] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] This disclosure relates to a mobile power bank programmable control circuit. In one embodiment, the mobile power bank programmable control circuit includes a source-load switching module and a power programmable controller; the source-load switching module includes a source-load switching circuit and a battery status detection circuit, the source-load switching circuit includes a source-load switcher, a first electronic switch transistor, and a second electronic switch transistor, the switching output terminal of the source-load switcher is connected to the second terminal of the first electronic switch transistor and the first terminal of the second electronic switch transistor respectively, the first terminal of the first electronic switch transistor is used to connect to a reference power supply, the control terminal of the first electronic switch transistor is connected to the load control terminal of the source-load switcher, the control terminal of the second electronic switch transistor is connected to the power control terminal of the source-load switcher, and the second terminal of the second electronic switch transistor is connected to power ground; the battery status detection circuit includes a detection inductor, a first resistor, a first capacitor, and a second... The system comprises a capacitor and a detection inductor. The first end of the detection inductor is connected to the switching output of the source-load switch. The first end of the detection inductor is also connected to the first end of the first capacitor. The second end of the first capacitor is connected to the second end of the second capacitor. The second end of the detection inductor is connected to the first end of both the first resistor and the first end of the second capacitor. The second end of the first resistor is connected to the second end of the second capacitor. The second end of the first resistor is used to connect to the positive terminal of the battery. The PWM output of the power supply controller is connected to the PWM input of the source-load switch. The common sampling terminal of the power supply controller is connected to the second end of the first capacitor. The AC sampling terminal of the power supply controller is connected to the first end of the first capacitor. The DC sampling terminal of the power supply controller is connected to the first end of the second capacitor. When the battery switches between load and power states, the induced voltage change on the detection inductor causes the voltage difference between the three sampling terminals of the power supply controller to change accordingly, facilitating battery state detection. Then, based on the battery state switching, the power supply controller outputs a PWM control signal to the source-load switch via the PWM output terminal to control the on / off state of the first and second electronic switches, thereby effectively and accurately switching the battery state. When the battery is used as a power source, the first electronic switch is turned on and the second electronic switch is turned off. When the battery is used as a load, the first electronic switch is turned off and the second electronic switch is turned on.

[0022] Please see Figure 1 This is a circuit diagram of a mobile power supply programmable circuit according to an embodiment of the present disclosure.

[0023] One embodiment of the mobile power bank programmable circuit 10 includes a source-load switching module 100 and a power programmable controller U16. Please refer to both. Figure 2The source-load switching module 100 includes a source-load switching circuit 110 and a battery status detection circuit 120. The source-load switching circuit 110 includes a source-load switcher U10, a first electronic switch Q28, and a second electronic switch Q32. The switching output terminal of the source-load switcher U10 is connected to the second terminal of the first electronic switch Q28 and the first terminal of the second electronic switch Q32, respectively. The first terminal of the first electronic switch Q28 is connected to a +12V reference power supply. The control terminal of the first electronic switch Q28 is connected to the load control terminal of the source-load switcher U10. The control terminal of the second electronic switch Q32 is connected to the power control terminal of the source-load switcher U10. The second terminal of the second electronic switch Q32 is connected to power ground. The battery state detection circuit 120 includes a detection inductor L4, a first resistor R166, a first capacitor C89, and a second capacitor C95. The first terminal of the detection inductor L4 is connected to the switching output terminal of the source-load switch U10. The first terminal of the detection inductor L4 is also connected to the first terminal of the first capacitor C89. The second terminal of the first capacitor C89 is connected to the second terminal of the second capacitor C95. The second terminal of the detection inductor L4 is connected to the first terminals of both the first resistor R166 and the second capacitor C95. The second terminal of the first resistor R166 is connected to the second terminal of the second capacitor C95. The second terminal of the first resistor R166 is used to connect to the positive terminal of the battery. Please refer to the following: Figure 3 The PWM output terminal of the power supply controller U16 is connected to the PWM input terminal of the source-load switch U10. The sampling common terminal of the power supply controller U16 is connected to the second terminal of the first capacitor C89. The AC sampling terminal of the power supply controller U16 is connected to the first terminal of the first capacitor C89. The DC sampling terminal of the power supply controller U16 is connected to the first terminal of the second capacitor C95.

[0024] In this embodiment, when the battery switches between load and power supply states, the change in induced voltage on inductor L4 is detected, causing the voltage difference at the three sampling terminals of the power controller U16 to change accordingly, facilitating battery state detection. Then, based on the battery state switching, the power controller U16 outputs a PWM control signal to the source-load switch U10 via its PWM output terminal to control the on / off states of the first electronic switch Q28 and the second electronic switch Q32, thereby effectively and accurately switching the battery state. Specifically, when the battery is used as a power source, the first electronic switch Q28 is turned on and the second electronic switch Q32 is turned off; when the battery is used as a load, the first electronic switch Q28 is turned off and the second electronic switch Q32 is turned on.

[0025] In another embodiment, there are multiple source-carrier switching modules 100. Specifically, there are 6 source-carrier switching modules 100, each with 6 sets of sampling ports, namely 6 common sampling terminals, 6 AC sampling terminals, and 6 DC sampling terminals.

[0026] In another embodiment, the source-load switch U10 is model LTC7060 and the power programmable controller U16 is model LTC7871ELWE#PBF.

[0027] In another embodiment, the first electronic switch Q28 is an NMOS transistor, with its first terminal being the drain of the NMOS transistor, its second terminal being the source of the NMOS transistor, and its control terminal being the gate of the NMOS transistor; the second electronic switch Q32 is an NMOS transistor, with its first terminal being the drain of the NMOS transistor, its second terminal being the source of the NMOS transistor, and its control terminal being the gate of the NMOS transistor.

[0028] In one embodiment, please refer to Figure 2 The battery state detection circuit 120 further includes a second resistor R154. The first end of the second resistor R154 is connected to the first end of the detection inductor L4, and the second end of the second resistor R154 is connected to the first end of the first capacitor C89. In this embodiment, the second resistor R154 is located between the detection inductor L4 and the first capacitor C89. Specifically, the second resistor R154 is connected in series with the first capacitor C89. The second resistor R154 pulls up the voltage at the first end of the detection inductor L4, making the voltage collected by the AC sampling terminal of the power controller U16 more accurate.

[0029] In one embodiment, please refer to Figure 2The battery state detection circuit 120 further includes a third resistor R133. The first end of the third resistor R133 is connected to the first end of the first capacitor C89, and the second end of the third resistor R133 is connected to the second end of the first capacitor C89. In this embodiment, the third resistor R133 is connected in parallel with the first capacitor C89, serving as a charge release circuit for the first capacitor C89. The first capacitor C89 acts as an energy storage capacitor between the AC sampling terminal and the DC sampling terminal of the power controller U16, allowing for differentiated voltage processing between the AC and DC sampling terminals of the power controller U16. This facilitates separate voltage acquisition between the AC and DC sampling terminals, reducing signal crosstalk during voltage acquisition. When the circuit stops working, the charge on the first capacitor C89 is dissipated through the third resistor R133, ensuring the accuracy of the next voltage acquisition.

[0030] In one embodiment, please refer to Figure 2 The battery state detection circuit 120 further includes a fourth resistor R155. The first end of the fourth resistor R155 is connected to the second end of the detection inductor L4, and the second end of the fourth resistor R155 is connected to the first end of the second capacitor C95. In this embodiment, the fourth resistor R155 is located between the detection inductor L4 and the second capacitor C95; specifically, the fourth resistor R155 is connected in series between the detection inductor L4 and the second capacitor C95. The fourth resistor R155 pulls up the voltage at the second end of the detection inductor L4, making the voltage collected by the common sampling terminal of the power controller U16 more accurate.

[0031] In one embodiment, please refer to Figure 2 The battery state detection circuit 120 further includes a fifth resistor R156. The first end of the fifth resistor R156 is connected to the second end of the first resistor R166, and the second end of the fifth resistor R156 is connected to the second end of the second capacitor C95. In this embodiment, the fifth resistor R156 is located between the first resistor R166 and the first capacitor C89. Specifically, the fifth resistor R156 is connected in series with the first capacitor C89. The fifth resistor R156 pulls up the voltage at the second end of the first resistor R166. Furthermore, the fifth resistor R156 and the second resistor R154 are respectively connected to the two ends of the first capacitor C89, increasing the voltage difference between the AC sampling terminal and the DC sampling terminal of the power controller U16. This facilitates amplification of the voltage change on the detection inductor L4, thereby further improving the accuracy of battery state change monitoring.

[0032] In one embodiment, please refer to Figure 2 The battery state detection circuit 120 further includes a third capacitor C97, and the second terminal of the first resistor R166 is connected to the power supply ground through the third capacitor C97. In this embodiment, the third capacitor C97 is located on the second terminal of the first resistor R166; specifically, the second terminal of the first resistor R166 is connected to the first terminal of the third capacitor C97, and the second terminal of the third capacitor C97 is grounded. The third capacitor C97 filters the output voltage to improve the stability of the power supply voltage output.

[0033] In one embodiment, please refer to Figure 2 The battery state detection circuit 120 further includes an electrolytic capacitor CE6. The second terminal of the first resistor R166 is connected to the positive terminal of the electrolytic capacitor CE6, and the negative terminal of the electrolytic capacitor CE6 is connected to the power supply ground. In this embodiment, the electrolytic capacitor CE6 is used in conjunction with the third capacitor C97. Specifically, the electrolytic capacitor CE6 and the third capacitor C97 are connected in parallel, and the capacitance value of the electrolytic capacitor CE6 is greater than the capacitance value of the third capacitor C97. The electrolytic capacitor CE6 and the third capacitor C97 perform two-stage filtering on the output voltage, further improving the stability of the power supply voltage output.

[0034] In one embodiment, please refer to Figure 2 The source-load switching circuit 110 further includes a sixth resistor R153. The load control terminal of the source-load switch U10 is connected to the control terminal of the first electronic switch Q28 through the sixth resistor R153. In this embodiment, the sixth resistor R153 is connected in series with the control terminal of the first electronic switch Q28. Specifically, the first end of the sixth resistor R153 is connected to the load control terminal of the source-load switch U10, and the first end of the sixth resistor R153 is connected to the control terminal of the first electronic switch Q28. The sixth resistor R153 limits the current on the control terminal of the first electronic switch Q28 to ensure the accurate conduction of the first electronic switch Q28.

[0035] In one embodiment, please refer to Figure 2The source-load switching circuit 110 further includes a seventh resistor R170. The power control terminal of the source-load switch U10 is connected to the control terminal of the second electronic switch Q32 through the seventh resistor R170. In this embodiment, the seventh resistor R170 is connected in series with the control terminal of the second electronic switch Q32. Specifically, the first end of the seventh resistor R170 is connected to the load control terminal of the source-load switch U10, and the first end of the seventh resistor R170 is connected to the control terminal of the second electronic switch Q32. The seventh resistor R170 limits the current on the control terminal of the second electronic switch Q32 to ensure the accurate conduction of the second electronic switch Q32.

[0036] In one embodiment, this disclosure also provides a programmable mobile power source / carrier integrated device, including the mobile power supply programmable circuit described in any of the above embodiments. In this embodiment, the mobile power supply programmable circuit includes a power source / carrier switching module and a power controller; the power source / carrier switching module includes a power source / carrier switching circuit and a battery status detection circuit. The power source / carrier switching circuit includes a power source / carrier switcher, a first electronic switch tube, and a second electronic switch tube. The switching output terminal of the power source / carrier switcher is connected to the second terminal of the first electronic switch tube and the first terminal of the second electronic switch tube, respectively. The first terminal of the first electronic switch tube is used to connect to a reference power supply. The control terminal of the first electronic switch tube is connected to the load control terminal of the power source / carrier switcher. The control terminal of the second electronic switch tube is connected to the power control terminal of the power source / carrier switcher. The second terminal of the second electronic switch tube is connected to power ground. The battery status detection circuit includes a detection inductor, a first resistor, a first capacitor, and a second... The detection inductor has its first end connected to the switching output of the source-load switcher. The first end of the detection inductor is also connected to the first end of the first capacitor. The second end of the first capacitor is connected to the second end of the second capacitor. The second end of the detection inductor is connected to the first end of both the first resistor and the first end of the second capacitor. The second end of the first resistor is connected to the second end of the second capacitor. The second end of the first resistor is used to connect to the positive terminal of the battery. The PWM output of the power controller is connected to the PWM input of the source-load switcher. The common sampling terminal of the power controller is connected to the second end of the first capacitor. The AC sampling terminal of the power controller is connected to the first end of the first capacitor. The DC sampling terminal of the power controller is connected to the first end of the second capacitor. When the battery switches between load and power states, the induced voltage change on the detection inductor causes the voltage difference between the three sampling terminals of the power controller to change accordingly, facilitating battery state detection. Then, based on the battery state switching, the power controller outputs a PWM control signal to the source-load switcher through the PWM output terminal to control the on / off state of the first and second electronic switches, thereby effectively and accurately switching the battery state. When the battery is used as a power source, the first electronic switch is turned on and the second electronic switch is turned off. When the battery is used as a load, the first electronic switch is turned off and the second electronic switch is turned on.

[0037] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent disclosure. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent disclosure should be determined by the appended claims.

Claims

1. A mobile power supply programmable circuit, characterized in that, include: A source-load switching module includes a source-load switching circuit and a battery state detection circuit. The source-load switching circuit includes a source-load switcher, a first electronic switch, and a second electronic switch. The switching output terminal of the source-load switcher is connected to the second terminal of the first electronic switch and the first terminal of the second electronic switch, respectively. The first terminal of the first electronic switch is connected to a reference power supply. The control terminal of the first electronic switch is connected to the load control terminal of the source-load switcher. The control terminal of the second electronic switch is connected to the power control terminal of the source-load switcher. The second terminal of the second electronic switch is connected to power ground. The battery state detection circuit includes a detection inductor, a first resistor, a first capacitor, and a second capacitor. The first terminal of the detection inductor is connected to the switching output terminal of the source-load switcher. The first terminal of the detection inductor is also connected to the first terminal of the first capacitor. The second terminal of the first capacitor is connected to the second terminal of the second capacitor. The second terminal of the detection inductor is connected to the first terminal of the first resistor and the first terminal of the second capacitor, respectively. The second terminal of the first resistor is connected to the second terminal of the second capacitor. The second terminal of the first resistor is connected to the positive terminal of the battery. A power supply programmable controller, wherein the PWM output terminal of the power supply programmable controller is connected to the PWM input terminal of the source-load switch, the sampling common terminal of the power supply programmable controller is connected to the second terminal of the first capacitor, the AC sampling terminal of the power supply programmable controller is connected to the first terminal of the first capacitor, and the DC sampling terminal of the power supply programmable controller is connected to the first terminal of the second capacitor.

2. The mobile power supply programmable circuit according to claim 1, characterized in that, The battery state detection circuit further includes a second resistor, the first end of which is connected to the first end of the detection inductor, and the second end of which is connected to the first end of the first capacitor.

3. The mobile power supply programmable circuit according to claim 1, characterized in that, The battery state detection circuit further includes a third resistor, the first end of which is connected to the first end of the first capacitor, and the second end of which is connected to the second end of the first capacitor.

4. The mobile power supply programmable circuit according to claim 1, characterized in that, The battery state detection circuit further includes a fourth resistor, the first end of which is connected to the second end of the detection inductor, and the second end of which is connected to the first end of the second capacitor.

5. The mobile power supply programmable circuit according to claim 1, characterized in that, The battery state detection circuit further includes a fifth resistor, the first end of which is connected to the second end of the first resistor, and the second end of which is connected to the second end of the second capacitor.

6. The mobile power supply programmable circuit according to claim 1, characterized in that, The battery status detection circuit also includes a third capacitor, and the second end of the first resistor is connected to the power supply ground through the third capacitor.

7. The mobile power supply programmable circuit according to claim 1, characterized in that, The battery status detection circuit also includes an electrolytic capacitor, with the second end of the first resistor connected to the positive terminal of the electrolytic capacitor and the negative terminal of the electrolytic capacitor connected to the power supply ground.

8. The mobile power supply programmable circuit according to claim 1, characterized in that, The source-load switching circuit also includes a sixth resistor, and the load control terminal of the source-load switch is connected to the control terminal of the first electronic switch tube through the sixth resistor.

9. The mobile power supply programmable circuit according to claim 1, characterized in that, The source-carrier switching circuit also includes a seventh resistor, and the power control terminal of the source-carrier switch is connected to the control terminal of the second electronic switch through the seventh resistor.

10. A programmable mobile source carrier integrated machine, characterized in that, Includes the mobile power supply programmable circuit as described in any one of claims 1 to 9.

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