CN205583793U - Wireless microphone's wireless charging device - Google Patents
Wireless microphone's wireless charging device Download PDFInfo
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- CN205583793U CN205583793U CN201620006336.3U CN201620006336U CN205583793U CN 205583793 U CN205583793 U CN 205583793U CN 201620006336 U CN201620006336 U CN 201620006336U CN 205583793 U CN205583793 U CN 205583793U
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Abstract
The utility model provides a wireless microphone's wireless charging device, cover form is personally experienced sth. Part of the body and is contained round fin crowd, first round spout, the second round spout that has inside groove room, round fin crowd first head wall and second head wall separately via first pulley and second pulley with first round spout and second round spout combine together, let round fin crowd according to first round spout and the rotating of second round spout, first head wall and second head wall tie for mutually, the limit portion of first head wall the inside installing motor driving apparatuses, the limit portion of second round spout the inside is erectting power module and is propping up the frame, also erect the aluminum alloy strip in the limit portion of second round spout the inside exactly, has solved the problem that power module often can generating temperature risees at the during operation effectively and has not still had the problem of such refrigeration plant's problem now.
Description
Technical field
The invention belongs to, for wireless charging device technical field, be specifically related to the wireless charging device of a kind of wireless microphone.
Background technology
Along with the raising of people's living standard, people increasingly focus on entertainment life.KTV at whole-sale price becomes the consumption pattern of transparent, par and health.Use wireless microphone in KTV more.Wireless microphone, or claim wireless microphone, it is the sound appliances of transmission acoustical signal.Wireless microphone does not use transmission cable, thus facility becomes simple, convenient, is particularly well-suited to moving sound, such as occasions such as KTV, speech, stage performance, floor managers.
Wireless microphone needs battery to power, and under normal circumstances, general wireless microphone, common batteries can use 5-6 hour.If using common non-charging battery, battery use cost is higher.If use rechargeable battery, using wired charger charging, it is necessary to service personal, wireless microphone is charged, delays the use time by timing.
In order to solve this problem, now propose the wireless charging device of a kind of wireless microphone, it includes power module, single chip machine controlling circuit, high-frequency inverter circuit, transmitting terminal coil, receiving terminal coil, rectification change-over circuit and the rechargeable battery of wireless microphone, described power module is connected with high-frequency inverter circuit with single chip machine controlling circuit, additionally single chip machine controlling circuit is also connected with high-frequency inverter circuit, described high-frequency inverter circuit is connected with transmitting terminal coil, transmitting terminal coil can act on receiving terminal coil in the way of electromagnetic action, described receiving terminal coil is connected with rectification change-over circuit, described rectification change-over circuit is connected with the rechargeable battery of wireless microphone, the rechargeable battery of described wireless microphone is connected with wireless microphone.nullWherein said single chip machine controlling circuit includes AT89C51 system，The input of oscillating circuit in the sheet of 18 that is numbered of described AT89C51 system is connected with the two ends of crystal oscillator X1 respectively with the outfan of oscillating circuit in the sheet being numbered 19，The two ends of described crystal oscillator X1 are connected with one end of the second conventional capacitive C8 with one end of the first conventional capacitive C7 the most respectively，The other end of the first described conventional capacitive C7 and the equal ground connection of the other end of the second conventional capacitive C8，Described AT89C51 system be numbered 20 earth lead pin GND also ground connection，One end of the 3rd described conventional capacitive C6 is connected with described 5V unidirectional current VCC5，The other end of the 3rd described conventional capacitive C6 is connected with one end of the reset pin RST and the first resistance R3 that are numbered 9 of AT89C51 system，The other end ground connection of the first described resistance R3，Additionally described 5V unidirectional current VCC5 is connected with inside and outside strobe pin EN/VPP of the program storage being numbered 31 of AT89C51 system with power input pin VCC of 40 that is numbered of AT89C51 system，Described 5V unidirectional current VCC5 is also connected with one end of the second resistance R4，The other end of the second described resistance R4 is also with one end of the 4th conventional capacitive C9、One end of proximity switch SQ1 and the I/O mouth pin P2.7 being numbered 28 of AT89C51 system are connected，The other end of the 4th described conventional capacitive C9、The other end ground connection of proximity switch SQ1，Described high-frequency inverter circuit is connected with the I/O mouth pin P1.0 being numbered 1 of AT89C51 system，Described AT89C51 system be numbered the I/O mouth pin P1.0 of 1 for output duty cycle adjustable PWM ripple,Single chip machine controlling circuit passes through timer internal output duty cycle adjustable PWM ripple，It is connected with high-frequency inverter circuit by the I/O mouth pin P1.0 being numbered 1 of AT89C51 system，Control field effect transistor VMOS1 in high-frequency inverter circuit.When wireless microphone is near wireless charging device, proximity switch SQ1 closes, the I/O mouth pin P2.7 being numbered 28 of AT89C51 system obtains low level signal, the I/O mouth pin P1.0 being numbered 1 of Single-chip Controlling AT89C51 system exports PWM ripple, wireless charging device full-load operation, is charged wireless microphone by the way of electromagnetic induction.When wireless microphone is not near wireless charging device, proximity switch SQ1 disconnects, the I/O mouth pin P2.7 port being numbered 28 of AT89C51 system obtains high level signal, the I/O mouth pin P1.0 being numbered 1 of Single-chip Controlling Single-chip Controlling AT89C51 system does not export PWM ripple, wireless charging device in a dormant state, saves electric energy.Second resistance R4 and the 4th conventional capacitive C9 forms RC filter circuit, jitter phenomenon during for eliminating proximity switch SQ1 on-off.Alternating current 220V voltage is converted to direct current 5V and direct current 12V by last power module, and direct current 5V is for single chip machine controlling circuit, and direct current 12V is for high-frequency inverter circuit；Direct current 12V inversion is high-frequency exchange 12V electric current by high-frequency inverter circuit, for transmitting terminal coil；When high-frequency exchange 12V electric current flows through transmitting terminal coil, produce the magnetic field of change；Receiving terminal coil, by the magnetic field induction AC electromotive force of change, is converted to direct current 9V voltage through over commutation change-over circuit, and direct current 9V voltage charges to the rechargeable battery of wireless microphone.
But the problem that power module the most often occurrence temperature raises, and currently there are no such refrigeration plant.
Summary of the invention
nullIt is an object of the invention to provide the wireless charging device of a kind of wireless microphone，Including power module、Single chip machine controlling circuit、High-frequency inverter circuit、Transmitting terminal coil、Receiving terminal coil、Rectification change-over circuit and the rechargeable battery of wireless microphone，Described power module is connected with high-frequency inverter circuit with single chip machine controlling circuit，Additionally single chip machine controlling circuit is also connected with high-frequency inverter circuit，Described high-frequency inverter circuit is connected with transmitting terminal coil，Transmitting terminal coil can act on receiving terminal coil in the way of electromagnetic action，Described receiving terminal coil is connected with rectification change-over circuit，Described rectification change-over circuit is connected with the rechargeable battery of wireless microphone，The rechargeable battery of described wireless microphone is connected with wireless microphone，And combine its method，Efficiently solve problem and the problem that currently there are no such refrigeration plant that power module the most often occurrence temperature raises.
In order to overcome deficiency of the prior art, the invention provides the wireless charging device of a kind of wireless microphone and the solution of method thereof, specific as follows:
A kind of wireless charging device of wireless microphone, including power module, single chip machine controlling circuit, high-frequency inverter circuit, transmitting terminal coil, receiving terminal coil, rectification change-over circuit and the rechargeable battery of wireless microphone, described power module is connected with high-frequency inverter circuit with single chip machine controlling circuit, additionally single chip machine controlling circuit is also connected with high-frequency inverter circuit, described high-frequency inverter circuit is connected with transmitting terminal coil, transmitting terminal coil can act on receiving terminal coil in the way of electromagnetic action, described receiving terminal coil is connected with rectification change-over circuit, described rectification change-over circuit is connected with the rechargeable battery of wireless microphone, the rechargeable battery of described wireless microphone is connected with wireless microphone；Described power module is arranged on hood-like internal, described hood-like body contains the round fin group 101 with interior groove room, first round chute 102, second round chute 103, the first head wall 113 of described round fin group 101 and the second head wall 114 each combine with the first described round chute 102 and the second round chute 103 via the first pulley 121 and the second pulley 131, allow described round fin group 101 according to the first described round chute 102 and the second round chute 103 turn, the first described head wall 113 is mutually arranged side by side with the second head wall 114；Described round fin group 101 is made up of 16 fins 111 circumferentially keeping equidistant gap arrangement, two fins 111 namely adjoined remain the gap of fin 111 horizontal span, the framework of described fin 111 is the framework with arcuation part, two of described fin 111 has locating slot 1111, allow fin 111 can be positioned to fin group 101, the described edge inside the first head wall 113 is installed with motor driving apparatus 112, the described edge inside the second round chute 103 sets up power module and props up frame 132, the aluminum alloy bar being namely set up in the edge inside the second round chute 103.
The method of the wireless charging device of described wireless microphone is that alternating current 220V voltage is converted to direct current 5V and direct current 12V by power module, and direct current 5V is for single chip machine controlling circuit, and direct current 12V is for high-frequency inverter circuit.Direct current 12V inversion is high-frequency exchange 12V electric current by high-frequency inverter circuit, for transmitting terminal coil；When high-frequency exchange 12V electric current flows through transmitting terminal coil, produce the magnetic field of change.Receiving terminal coil is by the magnetic field induction AC electromotive force of change, direct current 9V voltage is converted to through over commutation change-over circuit, direct current 9V voltage charges to the rechargeable battery of wireless microphone, so alternating current 220V is after transformator T1 blood pressure lowering, it is transformed into unidirectional current via the rectification circuit of 4 diode compositions, filter through the first filter capacitor C1, export 5V unidirectional current VCC5 through stabilivolt 7805, export 12V unidirectional current VCC12 through stabilivolt 7812.
Accompanying drawing explanation
Fig. 1 is the structural representation of the wireless charging device of wireless microphone.
Fig. 2 is the circuit diagram of power module.
Fig. 3 is single chip machine controlling circuit schematic diagram.
Fig. 4 is high-frequency inverter circuit schematic diagram.
Fig. 5 is rectification change-over circuit schematic diagram.
Fig. 6 is the structural representation of hood-like body.
Fig. 7 is the partial schematic diagram of hood-like body.
Detailed description of the invention
At present, wireless power transmission has three kinds of modes: wave radiation mode, way of electromagnetic induction, magnetic coupling resonance mode.Combining wireless mike service condition, project team uses way of electromagnetic induction to design wireless charging device, and wireless microphone is charged by the way of electromagnetic induction by wireless charging device.
Below in conjunction with the accompanying drawings this patent is described in further detail
As shown in Fig. 1-Fig. 7, the wireless charging device of wireless microphone, including power module, single chip machine controlling circuit, high-frequency inverter circuit, transmitting terminal coil, receiving terminal coil, rectification change-over circuit and the rechargeable battery of wireless microphone, described power module is connected with high-frequency inverter circuit with single chip machine controlling circuit, additionally single chip machine controlling circuit is also connected with high-frequency inverter circuit, described high-frequency inverter circuit is connected with transmitting terminal coil, transmitting terminal coil can act on receiving terminal coil in the way of electromagnetic action, described receiving terminal coil is connected with rectification change-over circuit, described rectification change-over circuit is connected with the rechargeable battery of wireless microphone, the rechargeable battery of described wireless microphone is connected with wireless microphone.
The method of the wireless charging device of described wireless microphone is that alternating current 220V voltage is converted to direct current 5V and direct current 12V by power module, and direct current 5V is for single chip machine controlling circuit, and direct current 12V is for high-frequency inverter circuit.Direct current 12V inversion is high-frequency exchange 12V electric current by high-frequency inverter circuit, for transmitting terminal coil；When high-frequency exchange 12V electric current flows through transmitting terminal coil, produce the magnetic field of change.Receiving terminal coil is by the magnetic field induction AC electromotive force of change, direct current 9V voltage is converted to through over commutation change-over circuit, direct current 9V voltage charges to the rechargeable battery of wireless microphone, so alternating current 220V is after transformator T1 blood pressure lowering, it is transformed into unidirectional current via the rectification circuit of 4 diode compositions, filter through the first filter capacitor C1, export 5V unidirectional current VCC5 through stabilivolt 7805, export 12V unidirectional current VCC12 through stabilivolt 7812.
Described power module is that alternating current 220V voltage is converted to direct current 5V and the circuit of direct current 12V.nullDescribed power module includes transformator T1，The outfan of described transformator T1 is connected with the input of the first rectification circuit in current rectifying and wave filtering circuit，The outfan of the first described rectification circuit is in parallel with the filter circuit of current rectifying and wave filtering circuit，The first described rectification circuit includes the first diode D1、Second diode D2、3rd diode D3 and the 4th diode D4，The first described diode D1、Second diode D2、3rd diode D3 and the 4th diode D4 constitutes bridge-type the first rectification circuit，The negative pole of the first i.e. described diode D1 is connected with the negative pole of the second diode D2，The positive pole of the first described diode D1 is connected with of outfan of negative pole and the transformator T1 of the 4th diode D4，The positive pole of the 4th described diode D4 is with the equal ground connection of positive pole of the 3rd diode D3，The negative pole of the 3rd described diode D3 is connected with the other end of transformator T1 with the positive pole of the second diode，The filter circuit of described current rectifying and wave filtering circuit is the first filter capacitor C1，One of the first described filter capacitor C1 is with the negative pole of the first diode D1、The input IN end of 7805 manostat and the input IN end of 7812 manostat are connected，The other end of the first described filter capacitor C1 is with the positive pole of the 4th diode D4、The ground connection GND end of 7805 manostat and the ground connection GND end of 7812 manostat are connected，The output OUT terminal of 7805 described manostat and the output OUT terminal of 7812 manostat are connected with one end of the 3rd filter capacitor C3 with one end of the second filter capacitor C2 respectively，The ground connection GND end of 7805 described manostat and the ground connection GND end of 7812 manostat are connected with the other end of the second filter capacitor C2 and the other end of the 3rd filter capacitor C3 respectively.
Described power module is arranged on hood-like internal, described hood-like body contains the round fin group 101 with interior groove room, first round chute 102, second round chute 103, the first head wall 113 of described round fin group 101 and the second head wall 114 each combine with the first described round chute 102 and the second round chute 103 via the first pulley 121 and the second pulley 131, allow described round fin group 101 according to the first described round chute 102 and the second round chute 103 turn, described head wall 113 is mutually arranged side by side with the second head wall 114；When power module runs, the described gas in hood-like body is heated up by power module, gas after so heating up flows towards higher position, the bound gas intensification type of flow, when gas after intensification discharges towards the outside, via the first pulley 121 and movement of the second pulley 131, round fin group 101 can be drawn according to the first round chute 102 and the second round chute 103 turn, realize the effect of agitation gas, allow mutually the combining towards the flowing of higher position and agitation gas from the simple of gas after heating up, improve refrigerating efficiency.Described round fin group 101 is that 16 fins 111 circumferentially keeping equidistant gap arrangement are constituted, two fins 111 namely adjoined remain the gap of fin 111 horizontal span, thus can allow described hood-like body will not be a kind of Closed Architecture, is beneficial to the gas release heated up further；nullThe framework of described fin 111 is the framework with arcuation part，Two of described fin 111 has locating slot 1111，Allow fin 111 can be positioned to fin group 101，When location，In described fin group 101, each keeps setting inclination or the extension direction one-tenth spiral erection of the centrage towards described fin group 101 towards the extension direction of the centrage of described fin group 101，The described edge inside the first head wall 113 is installed with motor driving apparatus 112，If the operating current of power module is the least，Motor can be set up in the outer wall of hood-like body，Driving through motor driving apparatus 112，The turn efficiency of the hood-like body 101 described in increase，Refrigerating efficiency is strengthened with this，The described edge inside the second round chute 103 sets up power module and props up frame 132，The aluminum alloy bar being namely set up in the edge inside the second round chute 103，This framework is easy to set up power module，Efficiently the elevated temperature gas of power module release can be sent to the second round chute 103，Improve refrigerating efficiency.
nullDescribed single chip machine controlling circuit includes AT89C51 system，The input of oscillating circuit in the sheet of 18 that is numbered of described AT89C51 system is connected with the two ends of crystal oscillator X1 respectively with the outfan of oscillating circuit in the sheet being numbered 19，The two ends of described crystal oscillator X1 are connected with one end of the second conventional capacitive C8 with one end of the first conventional capacitive C7 the most respectively，The other end of the first described conventional capacitive C7 and the equal ground connection of the other end of the second conventional capacitive C8，Described AT89C51 system be numbered 20 earth lead pin GND also ground connection，The reset pin RST being numbered 9 of described AT89C51 system connects one end and the one end of the first resistance R3 having the 3rd conventional capacitive C6，The other end of the 3rd described conventional capacitive C6 connects 5V unidirectional current VCC5，The other end ground connection of the first described resistance R3，Additionally described 5V unidirectional current VCC5 is connected with inside and outside strobe pin EN/VPP of the program storage being numbered 31 of AT89C51 system with power input pin VCC of 40 that is numbered of AT89C51 system，Described 5V unidirectional current VCC5 is also connected with one end of the second resistance R4，The other end of the second described resistance R4 is also with one end of the 4th conventional capacitive C9、One end of proximity switch SQ1 and the I/O mouth pin P2.7 being numbered 28 of AT89C51 system are connected，The other end of the 4th described conventional capacitive C9、The other end ground connection of proximity switch SQ1，Described high-frequency inverter circuit is connected with the I/O mouth pin P1.0 being numbered 1 of AT89C51 system，Described AT89C51 system be numbered the I/O mouth pin P1.0 of 1 for output duty cycle adjustable PWM ripple,Single chip machine controlling circuit passes through timer internal output duty cycle adjustable PWM ripple，It is connected with high-frequency inverter circuit by the I/O mouth pin P1.0 being numbered 1 of AT89C51 system，Control field effect transistor VMOS1 in high-frequency inverter circuit.When wireless microphone is near wireless charging device, proximity switch SQ1 closes, the I/O mouth pin P2.7 being numbered 28 of AT89C51 system obtains low level signal, the I/O mouth pin P1.0 being numbered 1 of Single-chip Controlling AT89C51 system exports PWM ripple, wireless charging device full-load operation, is charged wireless microphone by the way of electromagnetic induction.When wireless microphone is not near wireless charging device, proximity switch SQ1 disconnects, the I/O mouth pin P2.7 port being numbered 28 of AT89C51 system obtains high level signal, the I/O mouth pin P1.0 being numbered 1 of Single-chip Controlling Single-chip Controlling AT89C51 system does not export PWM ripple, wireless charging device in a dormant state, saves electric energy.Second resistance R4 and the 4th conventional capacitive C9 forms RC filter circuit, jitter phenomenon during for eliminating proximity switch SQ1 on-off.
nullDescribed high-frequency inverter circuit includes field effect transistor VMOS1，The grid of described field effect transistor VMOS1 is with one end of the 5th conventional capacitive C5、One end of 3rd resistance R2、One end of 4th resistance R1 and the I/O mouth pin P1.0 being numbered 1 of described AT89C51 system are connected，The other end of the 5th described conventional capacitive C5、The other end of the 3rd resistance R2 and the source ground of field effect transistor VMOS1，The other end of the 4th described resistance R1 is with described 12V unidirectional current VCC12、One of adjustable condenser C4、One of transmitting terminal coil L1 is connected，The other end of described adjustable condenser C4 is connected with the drain electrode of field effect transistor VMOS1 with the other end of transmitting terminal coil L1，The PWM ripple of single chip machine controlling circuit output makes field effect transistor VMOS1 switch on and off，Control the lc circuit of transmitting terminal coil L1 and adjustable condenser C4 composition，Produce high-frequency alternating current.The size of regulation adjustable condenser C4 can finely tune the resonant frequency of lc circuit, improves efficiency of transmission.
nullDescribed rectification change-over circuit includes the second rectification circuit，The second described rectification circuit includes the 5th diode D5、6th diode D6、7th diode D7 and the 8th diode D8，The 5th described diode D5、6th diode D6、7th diode D7 and the 8th diode D8 constitutes bridge-type the second rectification circuit，The negative pole of the 5th i.e. described diode D5 is connected with the negative pole of the 6th diode D6，The positive pole of the 5th described diode D5 is connected with of one end of negative pole and the receiving terminal coil L2 of the 8th diode D8，The positive pole of the 8th described diode D8 is with the equal ground connection of positive pole of the 7th diode D7，The negative pole of the 7th described diode D7 is connected with the other end of receiving terminal coil L2 with the positive pole of the second diode，The negative pole of the 5th described diode D5 is with one of the 4th filter capacitor C10、The input IN end of 7809 manostat is connected，The other end of the 4th described filter capacitor C10 is with the positive pole of the 8th diode D8、The ground connection GND end of 7809 manostat is connected，The output OUT terminal of 7809 described manostat is connected with one end of the 5th filter capacitor C11，The ground connection GND end of 7809 described manostat is connected with the other end of the 5th filter capacitor C11，So filtered by the 4th filter capacitor C10，9V unidirectional current VCC9 is exported through stabilivolt 7809，Charge to the rechargeable battery of wireless microphone.
The above, it it is only presently preferred embodiments of the present invention, not the present invention is made any pro forma restriction, although the present invention is disclosed above with preferred embodiment, but it is not limited to the present invention, any those skilled in the art, in the range of without departing from technical solution of the present invention, when the technology contents of available the disclosure above makes a little change or is modified to the Equivalent embodiments of equivalent variations, in every case it is without departing from technical solution of the present invention content, technical spirit according to the present invention, within the spirit and principles in the present invention, the any simple amendment that above example is made, equivalent and improvement etc., within all still falling within the protection domain of technical solution of the present invention.
Claims (6)
1. the wireless charging device of a wireless microphone, it is characterized in that including power module, single chip machine controlling circuit, high-frequency inverter circuit, transmitting terminal coil, receiving terminal coil, rectification change-over circuit and the rechargeable battery of wireless microphone, described power module is connected with high-frequency inverter circuit with single chip machine controlling circuit, additionally single chip machine controlling circuit is also connected with high-frequency inverter circuit, described high-frequency inverter circuit is connected with transmitting terminal coil, transmitting terminal coil can act on receiving terminal coil in the way of electromagnetic action, described receiving terminal coil is connected with rectification change-over circuit, described rectification change-over circuit is connected with the rechargeable battery of wireless microphone, the rechargeable battery of described wireless microphone is connected with wireless microphone；Described power module is arranged on hood-like internal, described hood-like body contains the round fin group with interior groove room, the first round chute, the second round chute, the first head wall of described round fin group and the second head wall each combine with the first described round chute and the second round chute via the first pulley and the second pulley, allowing described round fin group according to the first described round chute and the second round chute turn, the first described head wall and the second head wall are mutually arranged side by side；Described round fin group is made up of 16 fins circumferentially keeping equidistant gap arrangement, two fins namely adjoined remain the gap of a fin horizontal span, the framework of described fin is the framework with arcuation part, two of described fin has locating slot, allow fin can be positioned to fin group, the described edge inside the first head wall is installed with motor driving apparatus, the described edge inside the second round chute sets up power module and props up frame, the aluminum alloy bar being namely set up in the edge inside the second round chute.
The wireless charging device of wireless microphone the most according to claim 1, it is characterised in that described power module is that alternating current 220V voltage is converted to direct current 5V and the circuit of direct current 12V.
nullThe wireless charging device of wireless microphone the most according to claim 2，It is characterized in that described power module includes transformator T1，The outfan of described transformator T1 is connected with the input of the first rectification circuit in current rectifying and wave filtering circuit，The outfan of the first described rectification circuit is in parallel with the filter circuit of current rectifying and wave filtering circuit，The first described rectification circuit includes the first diode D1、Second diode D2、3rd diode D3 and the 4th diode D4，The first described diode D1、Second diode D2、3rd diode D3 and the 4th diode D4 constitutes bridge-type the first rectification circuit，The negative pole of the first i.e. described diode D1 is connected with the negative pole of the second diode D2，The positive pole of the first described diode D1 is connected with of outfan of negative pole and the transformator T1 of the 4th diode D4，The positive pole of the 4th described diode D4 is with the equal ground connection of positive pole of the 3rd diode D3，The negative pole of the 3rd described diode D3 is connected with the other end of transformator T1 with the positive pole of the second diode，The filter circuit of described current rectifying and wave filtering circuit is the first filter capacitor C1，One of the first described filter capacitor C1 is with the negative pole of the first diode D1、The input IN end of 7805 manostat and the input IN end of 7812 manostat are connected，The other end of the first described filter capacitor C1 is with the positive pole of the 4th diode D4、The ground connection GND end of 7805 manostat and the ground connection GND end of 7812 manostat are connected，The output OUT terminal of 7805 described manostat and the output OUT terminal of 7812 manostat are connected with one end of the 3rd filter capacitor C3 with one end of the second filter capacitor C2 respectively，The ground connection GND end of 7805 described manostat and the ground connection GND end of 7812 manostat are connected with the other end of the second filter capacitor C2 and the other end of the 3rd filter capacitor C3 respectively.
nullThe wireless charging device of wireless microphone the most according to claim 3，It is characterized in that described single chip machine controlling circuit includes AT89C51 system，The input of oscillating circuit in the sheet of 18 that is numbered of described AT89C51 system is connected with the two ends of crystal oscillator X1 respectively with the outfan of oscillating circuit in the sheet being numbered 19，The two ends of described crystal oscillator X1 are connected with one end of the second conventional capacitive C8 with one end of the first conventional capacitive C7 the most respectively，The other end of the first described conventional capacitive C7 and the equal ground connection of the other end of the second conventional capacitive C8，Described AT89C51 system be numbered 20 earth lead pin GND also ground connection，The reset pin RST being numbered 9 of described AT89C51 system connects one end and the one end of the first resistance R3 having the 3rd conventional capacitive C6，The other end of the 3rd described conventional capacitive C6 connects 5V unidirectional current VCC5，The other end ground connection of the first described resistance R3，Additionally described 5V unidirectional current VCC5 is connected with inside and outside strobe pin EN/VPP of the program storage being numbered 31 of AT89C51 system with power input pin VCC of 40 that is numbered of AT89C51 system，Described 5V unidirectional current VCC5 is also connected with one end of the second resistance R4，The other end of the second described resistance R4 is also with one end of the 4th conventional capacitive C9、One end of proximity switch SQ1 and the I/O mouth pin P2.7 being numbered 28 of AT89C51 system are connected，The other end of the 4th described conventional capacitive C9、The other end ground connection of proximity switch SQ1，Described high-frequency inverter circuit is connected with the I/O mouth pin P1.0 being numbered 1 of AT89C51 system，Described AT89C51 system be numbered the I/O mouth pin P1.0 of 1 for output duty cycle adjustable PWM ripple.
nullThe wireless charging device of wireless microphone the most according to claim 4，It is characterized in that described high-frequency inverter circuit includes field effect transistor VMOS1，The grid of described field effect transistor VMOS1 is with one end of the 5th conventional capacitive C5、One end of 3rd resistance R2、One end of 4th resistance R1 and the I/O mouth pin P1.0 being numbered 1 of described AT89C51 system are connected，The other end of the 5th described conventional capacitive C5、The other end of the 3rd resistance R2 and the source ground of field effect transistor VMOS1，The other end of the 4th described resistance R1 is with described 12V unidirectional current VCC12、One of adjustable condenser C4、One of transmitting terminal coil L1 is connected，The other end of described adjustable condenser C4 is connected with the drain electrode of field effect transistor VMOS1 with the other end of transmitting terminal coil L1.
nullThe wireless charging device of wireless microphone the most according to claim 5，It is characterized in that described rectification change-over circuit includes the second rectification circuit，The second described rectification circuit includes the 5th diode D5、6th diode D6、7th diode D7 and the 8th diode D8，The 5th described diode D5、6th diode D6、7th diode D7 and the 8th diode D8 constitutes bridge-type the second rectification circuit，The negative pole of the 5th i.e. described diode D5 is connected with the negative pole of the 6th diode D6，The positive pole of the 5th described diode D5 is connected with of one end of negative pole and the receiving terminal coil L2 of the 8th diode D8，The positive pole of the 8th described diode D8 is with the equal ground connection of positive pole of the 7th diode D7，The negative pole of the 7th described diode D7 is connected with the other end of receiving terminal coil L2 with the positive pole of the second diode D2，The negative pole of the 5th described diode D5 is with one of the 4th filter capacitor C10、The input IN end of 7809 manostat is connected，The other end of the 4th described filter capacitor C10 is with the positive pole of the 8th diode D8、The ground connection GND end of 7809 manostat is connected，The output OUT terminal of 7809 described manostat is connected with one end of the 5th filter capacitor C11，The ground connection GND end of 7809 described manostat is connected with the other end of the 5th filter capacitor C11.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105471056A (en) * | 2016-01-04 | 2016-04-06 | 南京铁道职业技术学院 | Wireless charging apparatus and method for wireless microphone |
| CN107907242A (en) * | 2017-10-25 | 2018-04-13 | 河海大学 | A kind of high voltage bus tie point passive contact-free temperature measuring equipment |
-
2016
- 2016-01-04 CN CN201620006336.3U patent/CN205583793U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105471056A (en) * | 2016-01-04 | 2016-04-06 | 南京铁道职业技术学院 | Wireless charging apparatus and method for wireless microphone |
| CN107907242A (en) * | 2017-10-25 | 2018-04-13 | 河海大学 | A kind of high voltage bus tie point passive contact-free temperature measuring equipment |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160914 Termination date: 20170104 |