CN215528658U

CN215528658U - Battery booster circuit

Info

Publication number: CN215528658U
Application number: CN202121652964.6U
Authority: CN
Inventors: 金文翔
Original assignee: Nanjing Mingke Electronic Technology Co ltd
Current assignee: Nanjing Mingke Electronic Technology Co ltd
Priority date: 2021-07-20
Filing date: 2021-07-20
Publication date: 2022-01-14
Anticipated expiration: 2031-07-20

Abstract

The utility model discloses a battery booster circuit, and particularly relates to the technical field of electronic scale booster circuits, which comprises a USB voltage, a patch triode, a switch breaker, a mobile power supply, an inductor, a resistor R9, a resistor R8, a capacitor C47, a capacitor C48, a diode, a capacitor C25, a capacitor C46, a resistor R5, a resistor R10 and a grounding end, wherein the VDD end of the mobile power supply is connected with the connecting end of the switch breaker. The utility model stores energy in the circuit by utilizing the inductor, and boosts the voltage value of the current at the output end of the mobile power supply by utilizing the capacitor C48 and the capacitor C46 in the discharging process, so that the mobile power supply can meet the normal voltage value required by the electronic scale display without adding a battery.

Description

Battery booster circuit

Technical Field

The utility model relates to the technical field of electronic scale booster circuits, in particular to a battery booster circuit.

Background

The electronic scale is an integrated electronic weighing device integrating modern sensor technology, electronic technology and computer technology. The electronic scale is composed of a weighing sensor, an amplifying circuit, an AD conversion circuit, a single chip circuit, a display circuit, a keyboard circuit, a communication interface circuit, a voltage-stabilized power supply circuit and the like, has the requirement of quick, accurate, continuous and automatic weighing, and can effectively eliminate human errors so as to meet the application requirements of legal metering management and industrial production process control.

An electronic scale belongs to a weighing apparatus, which is a tool for measuring the mass of an object by utilizing Hooke's law or the lever balance principle of force. The electronic balance is mainly composed of a bearing system (such as a scale pan and a scale body), a force transmission conversion system (such as a lever force transmission system and a sensor) and a value indicating system (such as a dial and an electronic display instrument) 3. According to the structural principle, the mechanical scale can be divided into three categories, namely a mechanical scale, an electronic scale and an electromechanical combination scale. Basic working process of an electronic scale circuit: when an object is placed on the scale pan, pressure is generated and applied to the load cell. The weighing sensor deforms under pressure, the impedance changes accordingly, the excitation voltage changes, and then an analog signal with weak change is output. This weak analog signal must be amplified to be able to match the signal chain subsequent circuitry. The analog signal is amplified, and the signal is amplified and output to an A/D analog-to-digital converter (in some electronic scales, the capacitive sensor + V/F is used, and the A/D analog-to-digital converter is replaced by the V/F, as shown in the figure). The A/D is converted into digital signals which are convenient to process and output to a microprocessor for control. The microprocessor outputs the result to a display screen for display or prints the result through a printer according to keyboard commands and programs. The memory is used for matching with micro-storage related data and programs. The power supply circuit provides corresponding electric energy for the electronic scales, and some electronic scales are also provided with storage batteries so as to facilitate the use of the electronic scales.

Most of the electronic scales in the prior art provide voltage through a single battery, but the voltage of the single battery is not enough to provide the voltage value required by the display panel, but if the battery is added to increase the voltage, the cost is greatly increased.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides the battery booster circuit, and the voltage provided by a single battery is improved by designing a circuit capable of boosting in the electronic scale, so that the voltage provided by the single battery can meet the display requirement of the electronic scale, and the production cost is not increased, so that the problems that the voltage provided by the single battery is smaller and the cost of a plurality of batteries is higher in the prior art are solved.

In order to achieve the above object, the embodiments of the present invention provide the following technical solutions: the battery booster circuit comprises a USB voltage, a patch triode, a switch breaker, a mobile power supply, an inductor, a resistor R9, a resistor R8, a capacitor C47, a capacitor C48, a diode, a capacitor C25, a capacitor C46, a resistor R5, a resistor R10 and a grounding end;

the mobile power supply VDD end is connected with a switch breaker connecting end, the switch breaker connecting end is connected with a patch triode, the patch triode connecting end is connected with a USB voltage, the mobile power supply GND end is respectively connected with a capacitor C47, a capacitor C48 and a ground end, the ground end is grounded, the capacitor C48 is connected in parallel in a circuit where the capacitor C47 is located, the mobile power supply LX end is respectively connected with an inductor and a diode, the inductor is connected with a resistor R9 connecting end, the resistor R9 is connected with a resistor R8 connecting end, two junction points of a circuit where the capacitor C47 is located are respectively arranged between the patch triode and the switch breaker and between the inductor and the resistor R9, a junction point of a circuit where the mobile power supply CE end is located is arranged between the resistor R9 and the resistor R8, and the diode connecting end is respectively connected with the capacitor C25, the capacitor C46 and the resistor R5, the capacitor C25 is connected in parallel with the capacitor C46, the FB terminal of the mobile power supply is respectively connected with the resistor R5 and the resistor R10, and the resistor R10 is connected with the ground terminal.

Further, CJ2301 is selected for the patch triode.

Further, the ME2149FP5G is selected as the mobile power supply.

Further, the capacitance size of the capacitor C25 is 220uF, and the capacitance size of the capacitor C47 is 100 uF.

Further, the inductance of the inductor is 3.3 uH.

Further, the resistance value of the resistor R9 is 10K, the resistance value of the resistor R10 is 10K, and the resistance value of the resistor R5 is 30K.

The utility model has the following advantages:

the utility model stores energy in the circuit by utilizing the inductor, and boosts the voltage value of the current at the output end of the mobile power supply by utilizing the capacitor C48 and the capacitor C46 in the discharging process, so that the mobile power supply can meet the normal voltage value required by the electronic scale display without adding a battery.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

Fig. 1 is a schematic structural diagram of a boost circuit provided in the present invention.

In the figure: the USB voltage 1, the chip triode 2, the switch circuit breaker 3, the mobile power supply 4, the inductor 5, the resistor R96, the resistor R87, the capacitor C478, the capacitor C489, the diode 10, the capacitor C2511, the capacitor C4612, the resistor R513, the resistor R1014 and the ground terminal 15.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the utility model will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the utility model and that it is not intended to limit the utility model to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to the attached fig. 1 of the specification, the battery booster circuit of the embodiment includes a USB voltage 1, a chip triode 2, a switch breaker 3, a mobile power supply 4, an inductor 5, a resistor R96, a resistor R87, a capacitor C478, a capacitor C489, a diode 10, a capacitor C2511, a capacitor C4612, a resistor R513, a resistor R1014, and a ground terminal 15;

the mobile power supply 4VDD end is connected with the connecting end of the switch breaker 3, the connecting end of the switch breaker 3 is connected with the surface mounted transistor 2, the surface mounted transistor 2 adopts CJ2301, the mobile power supply 4 adopts ME2149FP5G, the surface mounted transistor 2 is used for amplifying current, and the mobile power supply 4 is used for storing power. The connection end of the patch triode 2 is connected with a USB voltage 1, and the USB voltage 1 is used for connecting an external power supply.

The mobile power supply 4GND terminal is connected with the capacitor C478, the capacitor C489 and the grounding terminal 15 respectively, the grounding terminal 15 is grounded, and the grounding terminal 15 is used for grounding, so as to ensure the safety of the whole circuit. The capacitor C489 is connected in parallel to the line of the capacitor C478. The capacitor C47 is used for the transmission and amplification process of low frequency signals to prevent the static operating points of the front and rear two-stage circuits from influencing each other, and plays a role in blocking direct current and alternating current. The capacitor C489 is used for storing energy to achieve the effect of boosting.

The portable power source 4LX end is connected with inductor 5 and diode 10 respectively, inductor 5 is connected with resistance R96 link, resistance R96 is connected with resistance R87 link, two junctures of the place circuit of electric capacity C478 are established respectively between paster triode 2 and switch breaker 3 and between inductor 5 and resistance R96, inductor 5 plays the energy storage effect in this circuit, has two processes of charging and discharging.

The junction point of the circuit where the mobile power supply 4CE end is located is arranged between a resistor R96 and a resistor R87, the connection end of the diode 10 is respectively connected with a capacitor C2511, a capacitor C4612 and a resistor R513, the capacitor C2511 is connected with the capacitor C4612 in parallel, the mobile power supply 4FB end is respectively connected with the resistor R513 and the resistor R1014, and the resistor R1014 is connected with a ground terminal 15. The capacitor C2511 is used to provide a path for the ac signal or the pulse signal, so as to avoid voltage drop attenuation of the ac signal component due to the resistance. The capacitor C4612 is used for storing energy so as to achieve the effect of boosting.

The capacitance of the capacitor C2511 is 220uF, and the capacitance of the capacitor C478 is 100 uF.

The size of the inductance of the inductor 5 is 3.3 uH.

The resistance value of the resistor R96 is 10K, the resistance value of the resistor R1014 is 10K, and the resistance value of the resistor R513 is 30K.

Although the utility model has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the utility model. Accordingly, such modifications and improvements are intended to be within the scope of the utility model as claimed.

Claims

1. Battery boost circuit, its characterized in that: the device comprises a USB voltage (1), a patch triode (2), a switch breaker (3), a mobile power supply (4), an inductor (5), a resistor R9(6), a resistor R8(7), a capacitor C47(8), a capacitor C48(9), a diode (10), a capacitor C25(11), a capacitor C46(12), a resistor R5(13), a resistor R10(14) and a grounding terminal (15);

the portable power source (4) VDD end is connected with the connecting end of the switch breaker (3), the connecting end of the switch breaker (3) is connected with the patch triode (2), the connecting end of the patch triode (2) is connected with the USB voltage (1), the GND end of the portable power source (4) is respectively connected with a capacitor C47(8), a capacitor C48(9) and a grounding end (15), the grounding end (15) is grounded, the capacitor C48(9) is connected in parallel in a line where the capacitor C47(8) is located, the LX end of the portable power source (4) is respectively connected with an inductor (5) and a diode (10), the inductor (5) is connected with the connecting end of a resistor R9(6), the resistor R9(6) is connected with the connecting end of a resistor R8(7), two junctions of the line where the capacitor C47(8) is located are respectively arranged between the patch triode (2) and the switch breaker (3) and between the inductor (5) and a resistor R9(6), the junction point of the line where the CE end of the mobile power supply (4) is located is arranged between a resistor R9(6) and a resistor R8(7), the connecting end of the diode (10) is respectively connected with a capacitor C25(11), a capacitor C46(12) and a resistor R5(13), the capacitor C25(11) is connected with a capacitor C46(12) in parallel, the FB end of the mobile power supply (4) is respectively connected with the resistor R5(13) and the resistor R10(14), and the resistor R10(14) is connected with a grounding end (15).

2. The battery booster circuit of claim 1, wherein: CJ2301 is selected as the patch triode (2).

3. The battery booster circuit of claim 1, wherein: the mobile power supply (4) selects ME2149FP 5G.

4. The battery booster circuit of claim 1, wherein: the capacitance size of the capacitor C25(11) is 220uF, and the capacitance size of the capacitor C47(8) is 100 uF.

5. The battery booster circuit of claim 1, wherein: the size of the inductance of the inductor (5) is 3.3 uH.

6. The battery booster circuit of claim 1, wherein: the resistance value of the resistor R9(6) is 10K, the resistance value of the resistor R10(14) is 10K, and the resistance value of the resistor R5(13) is 30K.