CN203251239U - A superminiature ultrasonic signal generating circuit - Google Patents
A superminiature ultrasonic signal generating circuit Download PDFInfo
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- CN203251239U CN203251239U CN 201320282445 CN201320282445U CN203251239U CN 203251239 U CN203251239 U CN 203251239U CN 201320282445 CN201320282445 CN 201320282445 CN 201320282445 U CN201320282445 U CN 201320282445U CN 203251239 U CN203251239 U CN 203251239U
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- pwm signal
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Abstract
The utility model provides a superminiature ultrasonic signal generating circuit comprising a DC boosting module, a PWM signal generating module, a PWM signal amplifying signal, and a frequency selecting and amplifying module. The DC boosting module is used for boosting the voltage of a DC power supply. The PWM signal generating module is used for setting the frequency of an ultrasonic signal. The PWM signal amplifying signal is connected with the DC boosting module and the PWM signal generating module. The frequency selecting and amplifying module is connected with the PWM signal amplifying signal. An ultrasonic signal generating circuit is optimized. The superminiature ultrasonic signal generating circuit achieves signal amplification with a two-stage amplifying mode including a MOS transistor and a triode. And a conventional transformer is not required. The size of the ultrasonic signal generating circuit is effectively decreased and thus the superminiature ultrasonic signal generating circuit is further achieved.
Description
Technical field
The utility model relates to a kind of signal generating circuit, relates in particular to a kind of subminiature ultrasonic signal and produces circuit.
Background technology
Present ultrasonic signal circuit for generating extensively exists, and extensive use in pottery atomizing field, but existing ultrasonic signal circuit for generating all needs to carry out signal by transformer to be amplified, therefore, existing ultrasonic signal circuit for generating volume is very large, can not satisfying the market on the demand of miniaturization.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of subminiature ultrasonic signal to produce circuit, to reach the purpose that reduces the ultrasonic signal circuit for generating.
To this, the utility model provides a kind of subminiature ultrasonic signal to produce circuit, comprising:
For the DC boosting module that DC power supply is boosted;
Be used for setting the pwm signal generation module of ultrasonic signal frequency;
Pwm signal amplification module, described pwm signal amplification module are connected with pwm signal generation module with the DC boosting module respectively; And,
The frequency-selecting amplification module, described frequency-selecting amplification module is connected with the pwm signal amplification module.
Operation principle of the present utility model is: at first, the DC power supply of 3.4 ~ 5V is inputed to described DC boosting module and pwm signal generation module; Then, the DC power supply of described DC boosting module output 20V is to the pwm signal amplification module, and the pwm signal of described pwm signal generation module output Vpp=2.8V is to the pwm signal amplification module; The pwm signal of described pwm signal amplification module output Vpp=20 ~ 80V is to the frequency-selecting amplification module; At last, the ultrasonic wave of the setpoint frequency of described frequency-selecting amplification module output Vpp=50 ~ 140V drives signal to ceramic atomizing piece.
Further improvement of the utility model is that described DC boosting module comprises metal-oxide-semiconductor Q902, triode Q901, inductance L 903, step-up DC/DC transducer U902 and diode D901; Described triode Q901, inductance L 903 and step-up DC/DC transducer U902 is connected with metal-oxide-semiconductor Q902 respectively; Described diode D901 is connected with inductance L 903.Preferably, DC power supply is connected to diode D901 by metal-oxide-semiconductor Q902, inductance L 903 and step-up DC/DC transducer U902.
Further improvement of the utility model is that described frequency-selecting amplification module comprises inductance L 901 and capacitor C 910, and described pwm signal amplification module is electrically connected to capacitor C 910 by inductance L 901.
Further improvement of the utility model is that described pwm signal generation module comprises voltage regulation unit and signal generating unit, DC power supply by voltage regulation unit and signal generating unit output pwm signal to the pwm signal amplification module.
Further improvement of the utility model is that described pwm signal amplification module comprises triode Q903 and metal-oxide-semiconductor Q904; Described triode Q903 is electrically connected to the frequency-selecting amplification module by metal-oxide-semiconductor Q904.Preferably, described pwm signal amplification module also comprises inductance L 902, resistance R 905 and capacitor C 902; Described triode Q903 is electrically connected successively with resistance R 905, inductance L 902 and capacitor C 902; Described metal-oxide-semiconductor Q904 is electrically connected to the frequency-selecting amplification module by capacitor C 902.
Compared with prior art, the beneficial effects of the utility model are, by being produced circuit, ultrasonic signal is optimized, use mode that metal-oxide-semiconductor and triode two-stage amplify instead and realize amplification to signal, need not traditional transformer, the utility model has carried out effective reduction to the volume that whole ultrasonic signal produces circuit, and then has realized that subminiature ultrasonic signal produces circuit.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model;
Fig. 2 is the circuit diagram of the DC boosting module of a kind of embodiment of the utility model;
Fig. 3 is the pwm signal amplification module of a kind of embodiment of the utility model and the circuit diagram of frequency-selecting amplification module;
Fig. 4 is the circuit diagram of the pwm signal generation module of a kind of embodiment of the utility model.
Embodiment
Below in conjunction with accompanying drawing, more excellent embodiment of the present utility model is described in further detail.
As shown in Figure 1, this example provides a kind of subminiature ultrasonic signal to produce circuit, comprising:
For the DC boosting module that DC power supply is boosted;
Be used for setting the pwm signal generation module of ultrasonic signal frequency;
Pwm signal amplification module, described pwm signal amplification module are connected with pwm signal generation module with the DC boosting module respectively; And,
The frequency-selecting amplification module, described frequency-selecting amplification module is connected with the pwm signal amplification module.
This routine operation principle is: at first, the DC power supply of 3.4 ~ 5V is inputed to described DC boosting module and pwm signal generation module; Then, the DC power supply of described DC boosting module output 20V is to the pwm signal amplification module, and the pwm signal of described pwm signal generation module output Vpp=2.8V is to the pwm signal amplification module; The pwm signal of described pwm signal amplification module output Vpp=20 ~ 80V is to the frequency-selecting amplification module; At last, the ultrasonic wave of the setpoint frequency of described frequency-selecting amplification module output Vpp=50 ~ 140V drives signal to ceramic atomizing piece.
As shown in Figure 2, described DC boosting module comprises metal-oxide-semiconductor Q902, triode Q901, inductance L 903, step-up DC/DC transducer U902 and diode D901; Described triode Q901, inductance L 903 and step-up DC/DC transducer U902 is connected with metal-oxide-semiconductor Q902 respectively; Described diode D901 is connected with inductance L 903.Preferably, DC power supply is connected to diode D901 by metal-oxide-semiconductor Q902, inductance L 903 and step-up DC/DC transducer U902.As shown in Figure 2, the DC power supply VBAT of 3.4 ~ 5V is from the 2nd pin input of metal-oxide-semiconductor Q902, and the 2nd pin from diode D901 after boosting is exported the 20V DC power supply.
As shown in Figure 3, described frequency-selecting amplification module comprises inductance L 901 and capacitor C 910, and described pwm signal amplification module is electrically connected to capacitor C 910 by inductance L 901.The 1st pin input from the pwm signal of the Vpp=20 ~ 80V of the 2nd pin of capacitor C 902 output from inductance L 901, the ultrasonic wave by the 2nd pin output Vpp=50 ~ 140V of inductance L 901 after frequency-selecting is amplified drives signal.
As shown in Figure 3, described pwm signal amplification module comprises triode Q903, metal-oxide-semiconductor Q904, inductance L 902, resistance R 905 and capacitor C 902; Described triode Q903 is electrically connected to the frequency-selecting amplification module by metal-oxide-semiconductor Q904; Described triode Q903 is electrically connected successively with resistance R 905, inductance L 902 and capacitor C 902; Described metal-oxide-semiconductor Q904 is electrically connected to the frequency-selecting amplification module by capacitor C 902.By the 1st pin input from inductance L 902 of the DC power supply of the 20V of DC boosting module output, the pwm signal of the 2.8V that produces from pwm signal generation module is by the 1st pin input of resistance R 906, through amplifying, export the pwm signal of Vpp=20 ~ 80V from the 2nd pin of capacitor C 902.
As shown in Figure 4, described pwm signal generation module comprises voltage regulation unit U903 and signal generating unit U901, DC power supply by voltage regulation unit U903 and signal generating unit U901 output pwm signal to the pwm signal amplification module.Among Fig. 4, preferably the DC power supply VBAT with 3.4 ~ 5V inputs from the 1st pin of voltage regulation unit U903, the direct voltage of the 2.8V of the 5th pin energy stable output of voltage regulation unit U903, after the 1st pin power supply of this direct voltage to signal generating unit U901, signal generating unit U901 can be by the pwm signal of the 6th pin output Vpp=2.8V.
Compared with prior art, this routine beneficial effect is, by being produced circuit, ultrasonic signal is optimized, use combination that metal-oxide-semiconductor and triode two-stage amplify instead and realize amplification to signal, need not traditional transformer, this example has been carried out effective reduction to the volume that whole ultrasonic signal produces circuit, and then has realized that subminiature ultrasonic signal produces circuit.
The embodiment of the above is preferred embodiments of the present utility model; be not to limit implementation scope of the present utility model with this; scope of the present utility model comprises and is not limited to this embodiment that the equivalence that all shapes according to the utility model, structure are done changes all in protection range of the present utility model.
Claims (7)
1. a subminiature ultrasonic signal produces circuit, it is characterized in that, comprising:
For the DC boosting module that DC power supply is boosted;
Be used for setting the pwm signal generation module of ultrasonic signal frequency;
Pwm signal amplification module, described pwm signal amplification module are connected with pwm signal generation module with the DC boosting module respectively; And,
The frequency-selecting amplification module, described frequency-selecting amplification module is connected with the pwm signal amplification module.
2. subminiature ultrasonic signal according to claim 1 produces circuit, it is characterized in that described DC boosting module comprises metal-oxide-semiconductor Q902, triode Q901, inductance L 903, step-up DC/DC transducer U902 and diode D901; Described triode Q901, inductance L 903 and step-up DC/DC transducer U902 is connected with metal-oxide-semiconductor Q902 respectively; Described diode D901 is connected with inductance L 903.
3. subminiature ultrasonic signal according to claim 2 produces circuit, it is characterized in that DC power supply is connected to diode D901 by metal-oxide-semiconductor Q902, inductance L 903 and step-up DC/DC transducer U902.
4. according to claim 1 to the described subminiature ultrasonic signal generation circuit of 3 any one, it is characterized in that described frequency-selecting amplification module comprises inductance L 901 and capacitor C 910, described pwm signal amplification module is electrically connected to capacitor C 910 by inductance L 901.
5. according to claim 1 to the described subminiature ultrasonic signal generation circuit of 3 any one, it is characterized in that, described pwm signal generation module comprises voltage regulation unit and signal generating unit, DC power supply by voltage regulation unit and signal generating unit output pwm signal to the pwm signal amplification module.
6. according to claim 1 to the described subminiature ultrasonic signal generation circuit of 3 any one, it is characterized in that described pwm signal amplification module comprises triode Q903 and metal-oxide-semiconductor Q904; Described triode Q903 is electrically connected to the frequency-selecting amplification module by metal-oxide-semiconductor Q904.
7. subminiature ultrasonic signal according to claim 6 produces circuit, it is characterized in that described pwm signal amplification module also comprises inductance L 902, resistance R 905 and capacitor C 902; Described triode Q903 is electrically connected successively with resistance R 905, inductance L 902 and capacitor C 902; Described metal-oxide-semiconductor Q904 is electrically connected to the frequency-selecting amplification module by capacitor C 902.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320282445 CN203251239U (en) | 2013-05-22 | 2013-05-22 | A superminiature ultrasonic signal generating circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320282445 CN203251239U (en) | 2013-05-22 | 2013-05-22 | A superminiature ultrasonic signal generating circuit |
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| CN203251239U true CN203251239U (en) | 2013-10-23 |
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| CN 201320282445 Expired - Fee Related CN203251239U (en) | 2013-05-22 | 2013-05-22 | A superminiature ultrasonic signal generating circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109632972A (en) * | 2018-12-21 | 2019-04-16 | 厦门忻德信息技术有限公司 | A kind of ultrasonic exciting circuit |
-
2013
- 2013-05-22 CN CN 201320282445 patent/CN203251239U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109632972A (en) * | 2018-12-21 | 2019-04-16 | 厦门忻德信息技术有限公司 | A kind of ultrasonic exciting circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161220 Address after: 518000 Guangdong province Shenzhen Guangming Street Gongming Jiuzhou Industrial Park 2 Building 6 floor of the North Patentee after: Shenzhen Security Information Technology Co., Ltd. Address before: 518000 Guangdong City, Shenzhen Province, Nanshan District, the construction of the coastal garden of the century 2F, 9 Patentee before: Yang Runping |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131023 Termination date: 20210522 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |