CN108736713B - Blood pressure correction pulse circuit - Google Patents
Blood pressure correction pulse circuit Download PDFInfo
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- CN108736713B CN108736713B CN201810533109.XA CN201810533109A CN108736713B CN 108736713 B CN108736713 B CN 108736713B CN 201810533109 A CN201810533109 A CN 201810533109A CN 108736713 B CN108736713 B CN 108736713B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Electrotherapy Devices (AREA)
Abstract
The invention discloses a blood pressure correction pulse circuit, comprising: a voltage conversion module for providing a stable voltage; the pulse control module comprises a microprocessor and a triode, wherein the microprocessor comprises a PWM pin which is electrically connected with the base electrode of the triode, and the microprocessor is used for generating low-level pulse; and a pulse waveform conditioning module comprising: the pulse anode is electrically connected with the anode of the voltage conversion module through a first diode; the pulse negative electrode is electrically connected with the collector electrode of the triode through a second diode; and two ends of the resonant circuit are respectively and electrically connected with the pulse anode and the pulse cathode, and the two ends of the resonant circuit are connected in parallel with the first capacitor, the first resistor, the first inductor, the second resistor and the third diode which are connected in series. The pulse circuit can correct hypertension and hypotension.
Description
Technical Field
The invention relates to the field of circuits, in particular to a blood pressure correction pulse circuit.
Background
The blood pressure correction means correcting hypertension or hypotension to a blood pressure value in a normal range by a drug or an instrument. The medicine is used for treating hypertension, and the long-term taking of the medicine can bring great side effects to the body, such as kidney damage and the like. Orthotics generally employ electrical impulse therapy, which is a method of treating diseases using different types of electric current, and is one of the most common methods among physical therapy methods.
However, the current electric pulse correction of blood pressure has several problems:
1) only one of hypertension or hypotension can be corrected;
2) the electric pulse is generally combined with the magnetic therapy technology, so that the number of correction electrodes is too large, the structure is complex and the cost is increased;
3) the parameters of the pulse (amplitude, frequency and modulation information) are too simple, resulting in insignificant efficacy.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide a blood pressure correction pulse circuit which can correct hypertension and hypotension, has a simple structure and has an obvious effect.
In order to achieve the above object, the present invention provides a blood pressure correction pulse circuit, including: a voltage conversion module for providing a stable voltage; the pulse control module comprises a microprocessor and a triode, wherein the microprocessor comprises a PWM pin which is electrically connected with the base electrode of the triode, and the microprocessor is used for generating low-level pulse with the pulse negative electrode relative to the ground; and a pulse waveform conditioning module comprising: the pulse anode is electrically connected with the anode of the voltage conversion module through a first diode; the pulse negative electrode is electrically connected with the collector electrode of the triode through a second diode; and two ends of the resonant circuit are respectively and electrically connected with the pulse anode and the pulse cathode, and the two ends of the resonant circuit are connected in parallel with the first capacitor, the first resistor, the first inductor, the second resistor and the third diode which are connected in series.
Preferably, the voltage conversion module comprises a DC-DC boost conversion circuit, the DC-DC boost conversion circuit comprises a DC-DC boost chip, the second inductor is connected to the input end of the DC-DC boost chip and the two ends of the switch output end of the DC-DC boost chip, the switch output end is connected to a fourth diode to form the positive pole of the voltage conversion module, the positive pole of the voltage conversion module is grounded through the second capacitor, and the positive pole of the voltage conversion module is grounded through the third resistor and the fourth resistor which are connected in series.
Preferably, the DC-DC boost converter circuit further includes a third capacitor, a fourth capacitor and a fifth resistor, the DC-DC boost chip includes an error amplifier, a PWM controller, a switching tube, an oscillator, a ramp generator and a current sense amplifier, the compensation pin of the error amplifier is grounded through a fifth resistor (R5) and a fourth capacitor, the non-inverting input end of the error amplifier is connected with a voltage reference, the first inverting input end of the error amplifier is electrically connected with the common end of the third resistor and the fourth resistor, the output end of the error amplifier, the output end of the oscillator, the output end of the ramp generator and the output end of the current detection amplifier are simultaneously and electrically connected with the input end of the PWM controller, the output end of the PWM controller is electrically connected with the grid electrode of the switching tube, and the source electrode of the switching tube and two ends of the ground resistor are used as the differential input end of the current detection amplifier.
Preferably, a sixth resistor is connected between the PWM pin and the base of the triode, the collector of the triode is grounded through a seventh resistor and an eighth resistor connected in series, and the base of the triode is electrically connected with the common terminal of the seventh resistor and the eighth resistor through a fifth diode.
Preferably, the base of the triode is grounded through a ninth resistor.
Preferably, the pulse cathode is electrically connected with the common end of the first capacitor, the first resistor, the first inductor and the third diode through a tenth resistor, the first diode is electrically connected with the pulse anode through an eleventh resistor and a twelfth resistor which are connected in series, and the common end of the first capacitor, the first resistor, the first inductor and the second resistor is electrically connected with the common end of the eleventh resistor and the twelfth resistor.
Compared with the prior art, the invention has the following beneficial effects: by designing the pulse waveform conditioning module, the voltage conversion module and the pulse control module circuit, the pulse waveform conditioning module uses the output voltage provided by the voltage conversion module as a positive pole, generates a negative pole after being adjusted by the circuit, and generates pulse shapes capable of correcting blood pressure on the positive pole and the negative pole by combining the pulse control module, and negative pulse voltage can be generated by positive pulse voltage. So far, same pulse circuit can produce positive and negative pulse to through can programme produce different frequency, the pulse of different modulation information, can correct hypertension and hypotension, whole pulse circuit simple structure can reduce cost, more is favorable to the practicality and the popularization of product, and through experimental and clinical verification, the effect that this pulse circuit corrected blood pressure is showing.
Drawings
FIG. 1 is a schematic diagram of the connection of a blood pressure correction pulse circuit according to the present invention;
fig. 2 is a block diagram of a DC-DC boost chip in a blood pressure correction pulse circuit according to the present invention.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
As shown in fig. 1, a blood pressure correction pulse circuit according to an embodiment of the present invention includes three parts, namely, a voltage transformation module 1, a pulse control module 2 and a pulse waveform conditioning module 3, wherein the voltage transformation module 1 is configured to provide a stable voltage to provide an output voltage for the whole blood pressure correction pulse circuit. The pulse control module 2 comprises a Microprocessor (MCU) and a triode Q1, wherein the Microprocessor (MCU) comprises a PWM pin, the PWM pin is electrically connected with the base electrode of the triode Q1, and the Microprocessor (MCU) is used for generating low-level pulse with the negative electrode of the pulse relative to the ground. The pulse waveform conditioning module 3 comprises a pulse positive electrode (OUTPUT +), a pulse negative electrode (OUTPUT-) and a resonant circuit, wherein the pulse positive electrode is electrically connected with the positive electrode of the voltage conversion module 1 through a first diode D1, the pulse negative electrode is electrically connected with the collector electrode of the triode Q1 through a second diode D2, two ends of the resonant circuit are respectively electrically connected with the pulse positive electrode and the pulse negative electrode, and two ends of the resonant circuit are connected in parallel with a first capacitor C1, a first resistor R1, a first inductor L1, and a second resistor R2 and a third diode D3 which are connected in series.
In the above scheme, the pulse waveform conditioning module 3 uses the output voltage provided by the voltage conversion module 1 as a positive pulse voltage, generates a negative pulse voltage after being adjusted by a circuit, generates pulse shapes capable of correcting blood pressure on a pulse positive pole and a pulse negative pole by combining the pulse control module 2, and controls pulse frequency and modulation information by the pulse control module 2. The first diode D1 is a unidirectional device to prevent current from flowing backward, and the first capacitor C1, the first resistor R1, the first inductor L1, the second resistor R2 and the third diode D3 connected in series form a resonant circuit, which can generate negative pulse voltage from positive pulse voltage. Thus, the same pulse circuit can generate positive and negative pulses, and pulses with different frequencies and different modulation information can be generated through programming, so that hypertension and hypotension can be corrected. The whole pulse circuit has simple structure, can reduce the cost and is more favorable for the practicability and popularization of products. Through test and clinical verification, the pulse circuit has obvious effect of correcting blood pressure.
In the above-mentioned embodiment, referring to fig. 2, the voltage conversion module 1 includes a DC-DC boost conversion circuit, the DC-DC boost conversion circuit includes a DC-DC boost chip 11, two ends of an input end of the DC-DC boost chip 11 and a switch output end of the DC-DC boost chip 11 are connected to a second inductor L2, the switch output end is connected to a fourth diode D4 to form a positive electrode of the voltage conversion module, the positive electrode of the voltage conversion module is grounded through a second capacitor C2, and the positive electrode of the voltage conversion module is grounded through a third resistor R3 and a fourth resistor R4 connected in series. Preferably, the DC-DC boost converter circuit further includes a third capacitor C3, a fourth capacitor C4, and a fifth resistor R5, and the DC-DC boost chip 11 includes an Error amplifier (Error amplifier), a PWM controller (PWM Control), a switching tube (SW), an Oscillator (Oscillator), a Ramp generator (Ramp concentrator), and a Current sense amplifier (Current Sensor), wherein a compensation pin of the Error amplifier is grounded through the fifth resistor R5 and the fourth capacitor C4, and a non-inverting input terminal of the Error amplifier is connected to a voltage reference, such as 1.229V. The first inverting input end of the error amplifier is electrically connected with the common end of the third resistor R3 and the fourth resistor R4, the output end of the error amplifier, the output end of the oscillator, the output end of the ramp generator and the output end of the current detection amplifier are simultaneously and electrically connected with the input end of the PWM controller, the output end of the PWM controller is electrically connected with the grid electrode of the switch tube, and the source electrode of the switch tube and two ends of the ground resistor are used as the differential input end of the current detection amplifier.
In the above scheme, the DC-DC boost chip is a DC-DC boost chip, the function of the chip is to boost a low-voltage DC power supply (e.g. 3.3V) to a high-voltage DC power supply (e.g. 24V), the boost process is to convert DC to ac and then to DC, the second inductor L2, the fourth diode D4, the second capacitor C2, the third resistor R3 and the fourth resistor R4 are auxiliary components, wherein the second inductor L2 is an inductor for storing energy (the left side of the inductor is an ac signal and the right side of the inductor is a quasi-DC signal), the fourth diode D4 is a freewheeling diode (the right side of the diode is the boosted high-voltage DC power supply and is called a boost point), the second capacitor C2 is a voltage-stabilizing filter capacitor, the third resistor R3 and the fourth resistor R4 are voltage dividing resistors (the chip adjusts an output voltage value according to feedback of the voltage dividing resistors), and a common point provides a feedback voltage for the boost chip. The DC-DC boost chip can also be used by TPS61170 of Texas instruments directly.
In a preferred embodiment, a sixth resistor R6 is connected between the PWM pin and the base of the transistor, the collector of the transistor Q1 is grounded through a seventh resistor R7 and an eighth resistor R8 connected in series, and the base of the transistor Q1 is electrically connected to the common terminal of the seventh resistor R7 and the eighth resistor R8 through a fifth diode D5. Preferably, the base of the transistor Q1 is connected to ground through a ninth resistor R9. In the scheme, when the base (pin 1 of Q1) of the triode is controlled to be at a high level (such as 3.3V) by the MCU through the PWM pin, the collector of Q1 is at a low level (such as 0V), when the base (pin 1 of Q1) of Q1 is controlled to be at a low level (such as 0V) by the MCU through the PWM pin, the collector of Q1 is at a high level (such as 24V). That is, when the PWM pin of the MCU is a pulse, the collector of the transistor is also a pulse, but the amplitude and shape are different.
In a preferred embodiment, the negative pole of the pulse is electrically connected to the common terminal of the first capacitor C1, the first resistor R1, the first inductor L1 and the third diode D3 through a tenth resistor R10, the first diode D1 is electrically connected to the positive pole of the pulse through an eleventh resistor R11 and a twelfth resistor R12 connected in series, and the common terminal of the first capacitor C1, the first resistor R1, the first inductor L1 and the second resistor R2 is electrically connected to the common terminal of the eleventh resistor R11 and the twelfth resistor R12. In the scheme, the first diode D1 is electrically connected with the pulse positive electrode through the eleventh resistor R11 and the twelfth resistor R12 which are connected in series, and a boost point output by the DC-DC boost chip, for example, 24V, is used as the positive electrode of the pulse output after passing through the first diode D1, the eleventh resistor R11 and the twelfth resistor R12.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (3)
1. A blood pressure correction pulse circuit, comprising:
a voltage conversion module for providing a stable voltage;
the pulse control module comprises a microprocessor and a triode, wherein the microprocessor comprises a PWM pin which is electrically connected with a base electrode of the triode, and the microprocessor is used for generating low-level pulse with a pulse cathode relative to the ground; and
a pulse waveform conditioning module, comprising:
the pulse anode is electrically connected with the anode of the voltage conversion module through a first diode;
the pulse negative electrode is electrically connected with the collector electrode of the triode through a second diode; and
the two ends of the resonant circuit are respectively and electrically connected with the pulse anode and the pulse cathode, the resonant circuit comprises a first capacitor, a first resistor, a first inductor, a second resistor and a third diode, and the second resistor and the third diode are connected in series and then are connected in parallel with the first capacitor, the first resistor and the first inductor to form the resonant circuit;
a sixth resistor is connected between the PWM pin and the base electrode of the triode, the collector electrode of the triode is grounded through a seventh resistor and an eighth resistor which are connected in series, and the base electrode of the triode is electrically connected with the common end of the seventh resistor and the eighth resistor through a fifth diode;
the base electrode of the triode is grounded through a ninth resistor;
the pulse negative pole through tenth resistance with first electric capacity, first resistance, first inductance with the public end electric connection of third diode, first diode through the eleventh resistance and the twelfth resistance that concatenate with the positive electric connection of pulse, the first electric capacity, first resistance, first inductance with the public end electric connection of second resistance with the public end of eleventh resistance with the twelfth resistance.
2. The blood pressure correction pulse circuit according to claim 1, wherein the voltage conversion module comprises a DC-DC boost conversion circuit, the DC-DC boost conversion circuit comprises a DC-DC boost chip, a second inductor is connected to an input terminal of the DC-DC boost chip and two ends of a switch output terminal of the DC-DC boost chip, a fourth diode is connected to the switch output terminal to form an anode of the voltage conversion module, the anode of the voltage conversion module is grounded through the second capacitor, and the anode of the voltage conversion module is grounded through a third resistor and a fourth resistor connected in series.
3. The blood pressure correction pulse circuit according to claim 2, wherein the DC-DC boost converter circuit further comprises a third capacitor, a fourth capacitor and a fifth resistor, the DC-DC boost chip comprises an error amplifier, a PWM controller, a switch tube, an oscillator, a ramp generator and a current detection amplifier, wherein a compensation pin of the error amplifier is grounded via the fifth resistor and the fourth capacitor, a non-inverting input terminal of the error amplifier is connected to a voltage reference, a first inverting input terminal of the error amplifier is electrically connected to a common terminal of the third resistor and the fourth resistor, and an output terminal of the error amplifier, an output terminal of the oscillator, an output terminal of the ramp generator and an output terminal of the current detection amplifier are simultaneously electrically connected to an input terminal of the PWM controller, the output end of the PWM controller is electrically connected with the grid electrode of the switch tube, and the source electrode of the switch tube and two ends of the ground resistor are used as differential input ends of the current detection amplifier.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810533109.XA CN108736713B (en) | 2018-05-29 | 2018-05-29 | Blood pressure correction pulse circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810533109.XA CN108736713B (en) | 2018-05-29 | 2018-05-29 | Blood pressure correction pulse circuit |
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| CN108736713A CN108736713A (en) | 2018-11-02 |
| CN108736713B true CN108736713B (en) | 2021-04-09 |
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| CN203180799U (en) * | 2013-04-10 | 2013-09-04 | 浙江大学 | High-voltage pulse power supply based on control of 555 timer |
| CN103760408B (en) * | 2014-01-26 | 2017-02-15 | 矽力杰半导体技术(杭州)有限公司 | Zero cross detection circuit |
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