Boost module with adjustable output voltage

Abstract

The utility model discloses a boost module with adjustable output voltage, which comprises a power supply circuit, an enabling switch circuit, a boost switching circuit, a boost output circuit, a pin header P5, a pin header P6, a first jumper cap and a second jumper cap, the boost switching circuit is electrically connected with the boost output circuit, and a pin 2 of the pin header P5 is electrically connected with the boost switching circuit through an interface STEPUPCHOOSE-IO1; a pin 2 of the pin header P6 is electrically connected with the boost switching circuit through an interface STEPUPCHOOSE-IO2; the first jumper cap selectively enables the first pin and the second pin of the pin header 5 to be short-circuited, and the second pin and the third pin of the pin header 5 to be short-circuited. The second jumper cap selectively enables the first pin and the second pin of the pin header 6 to be short-circuited, and the second pin and the third pin of the pin header 6 to be short-circuited. According to the utility model, the jumping type adjustment can be carried out on the output voltage of the boost module through the jumper cap, whether the output voltage can be output or not can be controlled, and the flexibility and controllability of the module are enhanced.

Description

Technical Field

[0001] The utility model relates to the field of power modules, in particular to a boost module with adjustable output voltage. Background Art

[0002] There are two types of boost modules in common circuits. One type has a fixed output voltage and cannot be adjusted according to demand. The other type uses a potentiometer to adjust the output voltage, but manual adjustment is required. Manual adjustment has large errors and the voltage changes continuously during adjustment, making it impossible to achieve voltage jumps. Therefore, this application proposes a boost module with adjustable output voltage to address the aforementioned problems of unadjustable output voltage and large manual adjustment errors. Utility Model Content

[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a boost module with adjustable output voltage, which can adjust the output voltage of the boost module in a jump-like manner through a jumper cap, and can also control whether the output voltage can be output, thereby enhancing the flexibility and controllability of the module.

[0004] The utility model provides a boost module with adjustable output voltage, including a power supply circuit, an enable switch circuit, a boost switching circuit, a boost output circuit, a pin header P5, a pin header P6, a first jumper cap, and a second jumper cap, wherein the power supply circuit and the boost output circuit are both electrically connected to the enable switch circuit, the boost switching circuit is electrically connected to the boost output circuit, pin 1 of the pin header P5 is connected to a high level, pin 3 is grounded, and pin 2 is electrically connected to the boost switching circuit via an interface STEPUPCHOOSE-IO1; pin 1 of the pin header P6 is connected to a high level, pin 3 is grounded, and pin 2 is electrically connected to the boost switching circuit via an interface STEPUPCHOOSE-IO2;

[0005] The first jumper cap selectively shorts pins 1 and 2, and pins 2 and 3 of the pin header 5, and the second jumper cap selectively shorts pins 1 and 2, and pins 2 and 3 of the pin header 6 to adjust the output voltage value of the boost output circuit.

[0006] Preferably, the model of the boost chip of the boost output circuit is JW5513, and the boost switching circuit is electrically connected to the FB pin of the boost chip via an interface STEPUP-FB.

[0007] Preferably, the enabling switch circuit is electrically connected to the power supply circuit via an interface KL30 - 1 .

[0008] Preferably, the enabling switch circuit is electrically connected to the boost output circuit via an interface BOOST-KL30.

[0009] Preferably, the device further comprises a pin header P1, a pin header P2, a third jumper cap and a fourth jumper cap, wherein pin 1 of the pin header P1 is connected to a high level, pin 3 is grounded, and pin 2 is electrically connected to the EN pin of the boost chip via the interface BOOST1-EN; pin 1 of the pin header P2 is connected to a high level, pin 3 is grounded, and pin 2 is electrically connected to the enable switch circuit via the interface BOOST-CUT-SW;

[0010] The third jumper cap selectively shorts pins 1 and 2, and pins 2 and 3 of the pin header 1, and the fourth jumper cap selectively shorts pins 1 and 2, and pins 2 and 3 of the pin header 2 to control whether the boost output circuit outputs voltage.

[0011] Preferably, the power circuit is electrically connected to an external power source through an interface KL30.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The boost module of the utility model includes a power supply circuit, an enable switch circuit, a boost switching circuit, a boost output circuit, a pin header P5, a pin header P6, a pin header P1 and a pin header P2. The power supply circuit supplies power to the boost chip so that the boost chip can work normally. When the first jumper cap, the second jumper cap, the third jumper cap and the fourth jumper cap short-circuit the 1st and 2nd pins of the corresponding pin header, the interface connected to the 2nd pin on the corresponding pin header is enabled. When the first jumper cap, the second jumper cap, the third jumper cap and the fourth jumper cap short-circuit the 2nd and 3rd pins of the corresponding pin header, the 2nd pin on the corresponding pin header is enabled. The interface connected to the pin is disabled, and the first and second jumper caps are used to control the interface STEPUPCHOOSE-IO1 and interface STEPUPCHOOSE-IO2 to enable or disable, so that the boost output circuit outputs 14V, 16V or 18V voltage, and the output voltage value can be adjusted in a jumpy manner; the third and fourth jumper caps are used to control the interface BOOST1-EN and interface BOOST-CUT-SW to enable or disable, thereby controlling whether the boost output circuit can output voltage, thereby improving the flexibility and controllability of the boost module adjustment.

[0014] It should be understood that the contents described in the summary of the utility model are not intended to limit the key or important features of the embodiments of the utility model, nor are they intended to limit the scope of the utility model. Other features of the utility model will become easier to understand through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments made with reference to the following drawings:

[0016] Figure 1 This is a structural block diagram of a boost module with adjustable output voltage according to an embodiment of the present utility model;

[0017] Figure 2 This is the power supply circuit schematic;

[0018] Figure 3 This is the schematic diagram of the enabling switch circuit;

[0019] Figure 4 This is the schematic diagram of the boost output circuit;

[0020] Figure 5 This is the schematic diagram of the boost switching circuit;

[0021] Figure 6 This is the schematic diagram of pin header P1, pin header P2, pin header P5 and pin header P6. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are intended only to illustrate the relevant utility model and are not intended to limit the scope of the utility model. It should also be noted that, for ease of description, only the portions relevant to the utility model are shown in the accompanying drawings.

[0023] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] Please refer to Figures 1 to 6 An embodiment of the present invention provides a boost module with adjustable output voltage, including a power supply circuit, an enable switch circuit, a boost switching circuit, a boost output circuit, a pin header P5, a pin header P6, a first jumper cap, and a second jumper cap. The power supply circuit and the boost output circuit are both electrically connected to the enable switch circuit, and the boost switching circuit is electrically connected to the boost output circuit. Pin 1 of pin header P5 is connected to a high level, pin 3 is grounded, and pin 2 is electrically connected to the boost switching circuit via interface STEPUPCHOOSE-IO1. Pin 1 of pin header P6 is connected to a high level, pin 3 is grounded, and pin 2 is electrically connected to the boost switching circuit via interface STEPUPCHOOSE-IO2.

[0025] The first jumper cap selectively shorts pins 1 and 2, and pins 2 and 3 of pin 5, and the second jumper cap selectively shorts pins 1 and 2, and pins 2 and 3 of pin 6 to adjust the output voltage value of the boost output circuit.

[0026] Specifically, when the first jumper cap shorts pins 1 and 2 of pin 5, interface STEPUPCHOOSE-IO1 is enabled; when the first jumper cap shorts pins 3 and 2 of pin 5, interface STEPUPCHOOSE-IO1 is disabled; when the second jumper cap shorts pins 1 and 2 of pin 6, interface STEPUPCHOOSE-IO2 is enabled; when the second jumper cap shorts pins 3 and 2 of pin 6, interface STEPUPCHOOSE-IO2 is disabled;

[0027] The boost switching circuit is divided into three circuits from the interface STEPUP-FB. The interface STEPUPCHOOSE-IO1 is provided on the first circuit, and the interface STEPUPCHOOSE-IO2 is provided on the second circuit. The first circuit includes the interface STEPUPCHOOSE-IO1, the power MOS transistor Q2, and a voltage divider resistor R17, a resistor R12, and a resistor R13 connected in series. Pin 1 of the power MOS transistor Q2 is connected in series with a resistor R20 and the interface STEPUPCHOOSE-IO1, and pin 2 is connected in series with resistors R17, R12, and R13. Pin 3 is grounded. The second circuit includes the interface STEPUPCHOOSE-IO2, the power MOS transistor Q3, and a voltage divider resistor R14 and a resistor R18 in series. Pin 1 of the power MOS transistor Q3 is connected in series with a resistor R21 and the interface STEPUPCHOOSE-IO2, and pin 2 is connected in series with resistors R14 and R18. Pin 3 is grounded. The third circuit includes a voltage divider resistor R19. The first end of resistor R19 is connected to the interface STEPUP-FB, and the second end is grounded.

[0028] When both STEPUPCHOOSE-IO1 and STEPUPCHOOSE-IO2 are disabled, the boost output circuit outputs 14V.

[0029] When the STEPUPCHOOSE-IO1 interface is disabled and the STEPUPCHOOSE-IO2 interface is enabled, the boost output circuit outputs 16V voltage;

[0030] When STEPUPCHOOSE-IO1 is enabled and STEPUPCHOOSE-IO2 is disabled, the boost output circuit outputs 18 V. The output voltage can be changed by changing the values ​​of the voltage divider resistors in the first, second, and third circuits of the boost switching circuit.

[0031] In a preferred embodiment, the boost chip of the boost output circuit is JW5513, and the boost switching circuit is electrically connected to the FB pin of the boost chip via the interface STEPUP-FB.

[0032] In a preferred embodiment, the enabling switch circuit is electrically connected to the power circuit via the interface KL30 - 1 .

[0033] In a preferred embodiment, the enable switch circuit is electrically connected with the boost output circuit through the interface BOOST-KL30. Specifically, the power supply circuit is externally connected with a 12V power supply, and the enable switch circuit provides 12V voltage for the boost output circuit through the interface KL30-1 and the interface BOOST-KL30.

[0034] In a preferred embodiment, the power supply circuit further comprises a pin P1, a pin P2, a third jumper cap and a fourth jumper cap. The pin P1 is connected with a high level at the 1st pin, connected with a ground at the 3rd pin, and the 2nd pin is electrically connected with the EN pin of the boost chip through the interface BOOST1-EN. The pin P2 is connected with a high level at the 1st pin, connected with a ground at the 3rd pin, and the 2nd pin is electrically connected with the enable switch circuit through the interface BOOST-CUT-SW.

[0035] The third jumper cap selectively shorts the 1st pin and the 2nd pin of the pin P1, and shorts the 2nd pin and the 3rd pin of the pin P1. The fourth jumper cap selectively shorts the 1st pin and the 2nd pin of the pin P2, and shorts the 2nd pin and the 3rd pin of the pin P2, so as to control whether the boost output circuit outputs voltage.

[0036] Specifically, when the third jumper cap shorts the 1st pin and the 2nd pin of the pin P1, the interface BOOST1-EN is enabled. When the third jumper cap shorts the 3rd pin and the 2nd pin of the pin P1, the interface BOOST1-EN is disabled. When the third jumper cap shorts the 1st pin and the 2nd pin of the pin P2, the interface BOOST-CUT-SW is enabled. When the third jumper cap shorts the 3rd pin and the 2nd pin of the pin P2, the interface BOOST-CUT-SW is disabled.

[0037] The interface BOOST1-EN enables the pin of the boost chip. When the interface BOOST1-EN is disabled, the boost chip has power, but the boost output circuit cannot output voltage. The interface BOOST-CUT-SW enables the power supply of the entire boost chip. When the interface BOOST-CUT-SW is disabled, the entire boost chip has no power, and the boost output circuit also cannot output voltage. When the voltage in the circuit is abnormal, the power supply of the boost chip can be directly cut off through the interface BOOST-CUT-SW.

[0038] When the interface BOOST1-EN and the interface BOOST-CUT-SW are both enabled, the boost chip controls the boost output circuit to output voltage.

[0039] When any one of the interface BOOST1-EN and the interface BOOST-CUT-SW is disabled, the boost output circuit cannot output voltage.

[0040] In a preferred embodiment, the power supply circuit is electrically connected with an external power supply through the interface KL30.

[0041] This application controls the interface STEPUPCHOOSE-IO1 and the interface STEPUPCHOOSE-IO2 to enable or disable through the first jumper cap and the second jumper cap, so that the boost output circuit outputs 14V, 16V or 18V voltage, so that the output voltage value of the boost module can be adjusted in a jumpy manner; controls the interface BOOST1-EN and the interface BOOST-CUT-SW to enable or disable through the third jumper cap and the fourth jumper cap, thereby controlling whether the boost output circuit can output voltage, thereby improving the flexibility and controllability of the boost module adjustment.

[0042] In this specification, the terms "connect," "install," and "fix" should be understood broadly. For example, "connect" can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0043] Throughout this specification, terms such as "one embodiment" or "some embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0044] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A boost module with adjustable output voltage, characterized in that: It includes a power supply circuit, an enable switch circuit, a boost switching circuit, a boost output circuit, a pin header P5, a pin header P6, a first jumper cap, and a second jumper cap, wherein the power supply circuit and the boost output circuit are both electrically connected to the enable switch circuit, the boost switching circuit is electrically connected to the boost output circuit, pin 1 of the pin header P5 is connected to a high level, pin 3 is grounded, and pin 2 is electrically connected to the boost switching circuit via the interface STEPUPCHOOSE-IO1; pin 1 of the pin header P6 is connected to a high level, pin 3 is grounded, and pin 2 is electrically connected to the boost switching circuit via the interface STEPUPCHOOSE-IO2; The first jumper cap selectively shorts pins 1 and 2, and pins 2 and 3 of the pin header 5, and the second jumper cap selectively shorts pins 1 and 2, and pins 2 and 3 of the pin header 6 to adjust the output voltage value of the boost output circuit.

2. The boost module with adjustable output voltage according to claim 1, characterized in that: The model of the boost chip of the boost output circuit is JW5513, and the boost switching circuit is electrically connected to the FB pin of the boost chip via the interface STEPUP-FB.

3. The boost module with adjustable output voltage according to claim 2, characterized in that: The enabling switch circuit is electrically connected to the power circuit via the interface KL30 - 1 .

4. The boost module with adjustable output voltage according to claim 3, characterized in that: The enabling switch circuit is electrically connected to the boost output circuit via the interface BOOST-KL30.

5. The boost module with adjustable output voltage according to claim 4, characterized in that: It also includes a pin header P1, a pin header P2, a third jumper cap, and a fourth jumper cap. Pin 1 of the pin header P1 is connected to a high level, pin 3 is grounded, and pin 2 is electrically connected to the EN pin of the boost chip through the interface BOOST1-EN. Pin 1 of the pin header P2 is connected to a high level, pin 3 is grounded, and pin 2 is electrically connected to the enable switch circuit through the interface BOOST-CUT-SW. The third jumper cap selectively shorts pins 1 and 2, and pins 2 and 3 of the pin header 1, and the fourth jumper cap selectively shorts pins 1 and 2, and pins 2 and 3 of the pin header 2 to control whether the boost output circuit outputs voltage.

6. The boost module with adjustable output voltage according to claim 1, characterized in that: The power circuit is electrically connected to an external power source via the interface KL30.

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