CN209821638U

CN209821638U - Hand-held type beauty instrument power management chip

Info

Publication number: CN209821638U
Application number: CN201920881934.9U
Authority: CN
Inventors: 肖音
Original assignee: Shenzhen Rice Millet Intelligent Co Ltd
Current assignee: Shenzhen Rice Millet Intelligent Co Ltd
Priority date: 2019-06-12
Filing date: 2019-06-12
Publication date: 2019-12-20
Anticipated expiration: 2029-06-12

Abstract

The utility model discloses a hand-held type beauty instrument power management chip, including the chip body, the chip body is electric connection power adapter and rechargeable battery respectively, and this internal module, the module is listened to battery voltage, the module of stepping up, voltage stabilizing module and frequency output module of charging that are equipped with of chip, and the module is listened to battery voltage respectively, the module of stepping up, voltage stabilizing module and frequency output module are listened to the module of charging, the utility model discloses can be applied to all hand-held type beauty instruments, all power demands are solved to this power integrated chip, can replace the logic circuit of 3 single function's power chip and 3-4 check blocks, effectively reduce product circuit board size, with low product cost, shorten software and hardware development time.

Description

Hand-held type beauty instrument power management chip

Technical Field

The utility model relates to a power management chip technical field specifically is a hand-held type beauty instrument power management chip.

Background

The power supply design of the traditional hand-held beauty instrument is formed by combining chips with single functions, and comprises a charging management chip of a 3.7 lithium battery, a power supply voltage stabilization chip for supplying 3.3V to a singlechip, and a power supply voltage boosting chip which needs 6-9V driving when high frequency shock occurs and is boosted to 9V by a 3.7V battery; therefore, the conventional power block occupies a large PCB space, and research and development personnel also need to design logic blocks for controlling motors, micro-currents and the like by using the pins of the single chip microcomputer and the second and third transistors, so that the research and development personnel need to be very familiar with the specification and wiring requirements of each chip, and the design schedule and difficulty cause product development troubles, so improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a hand-held type beauty instrument power management chip to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a hand-held type beauty instrument power management chip, includes the chip body, the chip body is electric connection power adapter and rechargeable battery respectively, this internal charging module, battery electricity battery voltage detection module, the module of stepping up, voltage stabilizing module and the frequency output module of being equipped with of chip, the module of charging is connected battery voltage detection module, the module of stepping up, voltage stabilizing module and frequency output module respectively.

Preferably, the charging module comprises an operational amplifier C and an operational amplifier D, the positive input end of the operational amplifier C is respectively connected with one end of a resistor I and the positive electrode of a diode A, the negative electrode of the diode A is grounded, the other end of the resistor I is connected with a power supply end, the input end of the negative pole of the operational amplifier C is respectively connected with one end of a resistor J, the source electrode of the field effect transistor and one end of a resistor M, the other end of the resistor M is grounded, the output end of the operational amplifier C is respectively connected with the cathode of the diode B and one end of the capacitor E, the other end of the capacitor E is connected with the other end of the resistor J, the positive input end of the operational amplifier D is respectively connected with the positive electrode of the diode B and one end of the resistor K, a capacitor B is connected between the negative input end and the output end, the output end of the operational amplifier D is connected with one end of a resistor L, the other end of the resistor L is connected with a grid electrode of a field effect transistor, and a drain electrode of the field effect transistor is respectively connected with the other end of a resistor K and the rechargeable battery.

Preferably, the battery electric battery voltage detection module comprises a diode C, a capacitor C and a capacitor D, wherein the anode of the diode C is connected with one end of a resistor P, the other end of the resistor P is respectively connected with one end of a resistor Q and one end of the capacitor D, the other end of the resistor Q is respectively connected with the other end of the capacitor D, one end of a resistor O and one end of the capacitor C, the other end of the capacitor C is respectively connected with the other end of the resistor O and one end of a resistor N, and the other end of the resistor N is respectively connected with the cathode.

Preferably, the frequency output module comprises a first schmitt trigger, a second schmitt trigger, an operational amplifier a and an operational amplifier B, wherein the input end of the first schmitt trigger inputs a PWM signal, the output end of the first schmitt trigger is connected with the input end of the second schmitt trigger, the output end of the second schmitt trigger is connected with one end of a resistor a, the other end of the resistor a is respectively connected with one end of a resistor B and one end of a capacitor F, the other end of the resistor B is respectively connected with one end of a capacitor G and the positive input end of the operational amplifier a, the other end of the capacitor F is connected with the other end of the capacitor G and grounded, the negative input end of the operational amplifier a is connected with the output end, the output end of the operational amplifier a is connected with one end of a resistor C, the other end of the resistor C is, the triode base is connected to the resistance F other end, operational amplifier B negative pole input is connecting resistance D one end and resistance E one end respectively, and the resistance D other end ground connection, triode projecting pole and resistance H one end are connected respectively to the resistance E other end, and diode D negative pole is connected to the resistance H other end, the anodal ground connection of diode D, insert diode E between triode collecting electrode and the resistance G other end.

Preferably, the model of the boosting module adopts MP 9185.

Preferably, the model of the voltage stabilizing module adopts AMS 1117.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses can be applied to all hand-held type beauty instruments, all power demands are solved to this power integrated chip, can replace the logic circuit of 3 single function's power chip and 3-4 check blocks, effectively reduce product circuit board size, will low product cost, shorten software and hardware development time.

(2) The utility model discloses a module of charging do not adopt the chip to do control, and circuit structure is simple, but reduce cost, and charging efficiency is high.

(3) The utility model discloses a battery electricity battery voltage detection module operational reliability is higher, can the holding voltage stability, can reduce the electric current in the circuit to the life of battery has been improved.

(4) The utility model discloses a frequency output module can realize the accurate output of 4-20MA electric current, owing to adopt Schmidt trigger and electric current negative feedback circuit, its interference killing feature and stability are higher, have further improved output signal's stability.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a circuit diagram of the charging module of the present invention;

fig. 3 is a circuit diagram of the battery voltage detecting module of the present invention;

fig. 4 is a circuit diagram of the frequency output module of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a handheld beauty instrument power management chip comprises a chip body 1, wherein the chip body 1 is respectively and electrically connected with a power adapter 2 and a rechargeable battery 3, a charging module 4, a battery voltage detection module 5, a boosting module 6, a voltage stabilizing module 7 and a frequency output module 8 are arranged in the chip body 1, and the charging module 4 is respectively connected with the battery voltage detection module 5, the boosting module 6, the voltage stabilizing module 7 and the frequency output module 8; the model of the boosting module adopts MP9185, and the model of the voltage stabilizing module adopts AMS 1117.

In the utility model, the charging module 4 comprises an operational amplifier C3D and an operational amplifier D4D, the positive pole input end of the operational amplifier C3d is respectively connected with one end of a resistor I9C and the positive pole of a diode A1a, the negative pole of the diode A1a is grounded, the other end of the resistor I9C is connected with a power supply end, the negative electrode input end of the operational amplifier C3d is respectively connected with one end of a resistor J10C, the source electrode of the field effect transistor 9 and one end of a resistor M13C, the other end of the resistor M13C is grounded, the output end of the operational amplifier C3d is respectively connected with the cathode of the diode B2a and one end of the capacitor E5B, the other end of the capacitor E5B is connected with the other end of the resistor J10C, the positive pole input end of the operational amplifier D4D is respectively connected with the positive pole of the diode B2a and one end of the resistor K11c, a capacitor B2B is connected between the negative pole input end and the output end, the output end of the operational amplifier D4D is connected with one end of a resistor L12c, the other end of the resistor L12c is connected with the grid of a field effect transistor 9, the drain of the field effect transistor 9 is respectively connected with the other end of the resistor K11c and the rechargeable battery 3. When the battery is charged, particularly at the moment of switching on and off, the surge is very easy to generate, the damage to the battery is very large, and the positive pole of the battery is connected with a surge bleeder circuit. Surge bleeder circuit can adopt the piezo-resistor of one end ground connection to realize, the utility model discloses a module of charging does not adopt the chip to do control, and circuit structure is simple, but reduce cost, and charge efficiency is high.

The utility model discloses in, battery electricity battery voltage detection module 5 includes diode C3a, electric capacity C3b and electric capacity D4b, diode C3a anodal connecting resistance P16C one end, the resistance P16C other end is connecting resistance Q17C one end and electric capacity D4b one end respectively, electric capacity D4b other end, resistance O15C one end and electric capacity C3b one end are connected respectively to the resistance Q17C other end, and the electric capacity C3b other end is connecting resistance O15C other end and resistance N14C one end respectively, and diode C3a negative pole and power input are connected respectively to the resistance N14C other end. The utility model discloses a battery electricity battery voltage detection module operational reliability is higher, can the holding voltage stability, can reduce the electric current in the circuit to the life of battery has been improved.

In addition, in the present invention, the frequency output module 8 includes a first schmitt trigger 10, a second schmitt trigger 11, an operational amplifier A1d and an operational amplifier B2d, the input end of the first schmitt trigger 10 inputs the PWM signal, the output end is connected to the input end of the second schmitt trigger 11, the output end of the second schmitt trigger 11 is connected to one end of a resistor A1C, the other end of the resistor A1C is connected to one end of a resistor B2C and one end of a capacitor F6B respectively, the other end of the resistor B2C is connected to one end of a capacitor G7B and the positive input end of an operational amplifier A1d respectively, the other end of the capacitor F6B is connected to the other end of a capacitor G7B and grounded, the negative input end of the operational amplifier A1d is connected to the output end, the output end of the operational amplifier A1d is connected to one end of a resistor C3C, the other end of the resistor C3C is connected to the positive input end of an operational amplifier B2 and one end of a resistor, triode 12 base is connected to the resistance F6c other end, operational amplifier B2D negative pole input is connected resistance D4c one end and resistance E5c one end respectively, resistance D4c other end ground connection, triode 12 projecting pole and resistance H8c one end are connected respectively to the resistance E5c other end, diode D4a negative pole is connected to the resistance H8c other end, the anodal ground connection of diode D4a, insert diode E5a between triode 12 collecting electrode and the resistance G7c other end. The utility model discloses a frequency output module can realize the accurate output of 4-20MA electric current, and resolution ratio is relevant with the figure of PWM signal, as long as PWM signal resolution ratio reaches certain figure, just can realize the current output of high accuracy, owing to adopt Schmidt trigger and electric current negative feedback circuit, its interference killing feature and stability are higher, have further improved output signal's stability.

To sum up, the utility model discloses can be applied to all hand-held type beauty instrument, all power demands are solved to this power integrated chip, can replace the logic circuit of 3 single function's power chip and 3-4 check blocks, effectively reduce product circuit board size, will low product cost, shorten software and hardware development time.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a hand-held type beauty instrument power management chip, includes chip body (1), its characterized in that: the chip body (1) is respectively electrically connected with the power adapter (2) and the rechargeable battery (3), a charging module (4), a battery electric battery voltage detecting module (5), a boosting module (6), a voltage stabilizing module (7) and a frequency output module (8) are arranged in the chip body (1), and the charging module (4) is respectively connected with the battery voltage detecting module (5), the boosting module (6), the voltage stabilizing module (7) and the frequency output module (8).

2. The power management chip of the hand-held beauty instrument of claim 1, wherein: the charging module (4) comprises an operational amplifier C (3D) and an operational amplifier D (4D), wherein the positive input end of the operational amplifier C (3D) is respectively connected with one end of a resistor I (9C) and the positive electrode of a diode A (1a), the negative electrode of the diode A (1a) is grounded, the other end of the resistor I (9C) is connected with a power supply end, the negative input end of the operational amplifier C (3D) is respectively connected with one end of a resistor J (10C), the source electrode of a field effect transistor (9) and one end of a resistor M (13C), the other end of the resistor M (13C) is grounded, the output end of the operational amplifier C (3D) is respectively connected with the negative electrode of a diode B (2a), one end of a capacitor E (5B), the other end of a capacitor E (5B) is connected with the other end of a resistor J (10C), the positive input end of the operational amplifier D (4D) is respectively connected with, and a capacitor B (2B) is connected between the negative electrode input end and the output end, the output end of the operational amplifier D (4D) is connected with one end of a resistor L (12c), the other end of the resistor L (12c) is connected with the grid electrode of a field effect transistor (9), and the drain electrode of the field effect transistor (9) is respectively connected with the other end of a resistor K (11c) and the rechargeable battery (3).

3. The power management chip of the hand-held beauty instrument of claim 1, wherein: the battery voltage detection module (5) comprises a diode C (3a), a capacitor C (3b) and a capacitor D (4b), one end of a positive connecting resistor P (16C) of the diode C (3a) is connected with the other end of the resistor P (16C) respectively, one end of a resistor Q (17C) is connected with one end of the capacitor D (4b) while the other end of the resistor Q (17C) is connected with the other end of the capacitor D (4b), one end of a resistor O (15C) and one end of the capacitor C (3b), the other end of the capacitor C (3b) is connected with the other end of the resistor O (15C) and one end of a resistor N (14C) respectively, and the other end of the resistor N (14C) is connected with the negative pole of the diode C (3a) and the.

4. The power management chip of the hand-held beauty instrument of claim 1, wherein: the frequency output module (8) comprises a first Schmitt trigger (10), a second Schmitt trigger (11), an operational amplifier A (1d) and an operational amplifier B (2d), wherein a PWM signal is input at the input end of the first Schmitt trigger (10), the output end of the first Schmitt trigger is connected with the input end of the second Schmitt trigger (11), the output end of the second Schmitt trigger (11) is connected with one end of a resistor A (1C), the other end of the resistor A (1C) is respectively connected with one end of a resistor B (2C) and one end of a capacitor F (6B), the other end of the resistor B (2C) is respectively connected with one end of a capacitor G (7B) and the positive input end of the operational amplifier A (1d), the other end of the capacitor F (6B) is connected with the other end of the capacitor G (7B) and is grounded, the negative input end of the operational amplifier A (1d) is connected with the output end, the output end of the operational amplifier A (1, the resistance C (3C) other end connects operational amplifier B (2D) positive pole input and resistance G (7C) one end respectively, operational amplifier B (2D) output connecting resistance F (6C) one end, triode (12) base is connected to the resistance F (6C) other end, operational amplifier B (2D) negative pole input is connecting resistance D (4C) one end and resistance E (5C) one end respectively, resistance D (4C) other end ground connection, triode (12) projecting pole and resistance H (8C) one end are connected respectively to the resistance E (5C) other end, diode D (4a) negative pole is connected to the resistance H (8C) other end, diode D (4a) anodal ground connection, insert diode E (5a) between triode (12) collecting electrode and the resistance G (7C) other end.

5. The power management chip of the hand-held beauty instrument of claim 1, wherein: the model of the boosting module adopts MP 9185.

6. The power management chip of the hand-held beauty instrument of claim 1, wherein: the model of the voltage stabilizing module adopts AMS 1117.