CN208522657U - A kind of charging voltage control circuit - Google Patents
A kind of charging voltage control circuit Download PDFInfo
- Publication number
- CN208522657U CN208522657U CN201821272100.XU CN201821272100U CN208522657U CN 208522657 U CN208522657 U CN 208522657U CN 201821272100 U CN201821272100 U CN 201821272100U CN 208522657 U CN208522657 U CN 208522657U
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- Prior art keywords
- circuit
- charging
- turn
- feedback
- afterflow
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Abstract
The utility model discloses a kind of charging voltage control circuits, including transformer, feed circuit, sample circuit, driving circuit and afterflow accumulator；Feed circuit acquires transformer-secondary voltage, and sample circuit acquires the electric current in charging path, feedback result and sampled result co- controlling driving circuit, driving circuit driving transformer turn-on and turn-off, and transformer secondary output implements afterflow energy storage by afterflow accumulator.The charging voltage control circuit of the utility model is convenient for accurately controlling defibrillation voltage charging voltage.
Description
Technical field
The utility model belongs to the field of medical instrument technology, more particularly to external defibrillator technical field, more particularly to
A kind of charging voltage control circuit.
Background technique
American Heart Association (AHA) specifies that external defibrillator is to obtain fast electric after sudden cardiac death occurs to remove already
It quivers the most efficient method for the treatment of.The key technology of external defibrillator is accurately and fast to charge, and then implements electric defibrillation.
During defibrillation rescue, the patient for different through thorax impedance is needed to implement different-energy electric shock, and then need
The defibrillation voltage of different amplitudes.Too high voltages will affect defibrillation safety, and crossing low-voltage will affect defibrillation validity.So removing
Quiver voltage accuracy it is extremely important, be evaluate external defibrillator performance important indicator.
Utility model content
Goal of the invention: in view of the above problems, the utility model proposes a kind of charging voltage control circuit, defibrillation voltage is filled
Piezoelectric voltage is accurately controlled.
Technical solution: to realize above-mentioned purpose of design, the technical scheme adopted by the utility model is a kind of charging voltage
Control circuit, including transformer, feed circuit, sample circuit, driving circuit and afterflow accumulator；
The transformer includes primary coil, secondary coil and feedback coil；The feed circuit acquisition feedback coil
Feedback voltage exports feedback signal, and is transmitted to driving circuit；Filling in the sample circuit acquisition primary charging coil access
Electric current exports feedback signal, and is transmitted to driving circuit；The driving circuit is electric by the feedback signal of feed circuit and sampling
The feedback signal co- controlling on road, output control signal control the turn-on and turn-off of metal-oxide-semiconductor in charging path, realize primary coil
Turn-on and turn-off；The afterflow accumulator provides afterflow by secondary coil, is transmitted to energy-storage travelling wave tube.
Further, the feed circuit includes first resistor and first comparator, and the feed circuit acquires feedback line
Electric current in circle, generates feedback voltage in first resistor, compared with the reference voltage of comparator, exports feedback signal.
Further, the sample circuit includes second resistance, 3rd resistor and the second comparator, and the sample circuit is adopted
Collect the electric current in charging path, sampled voltage is generated on sampling resistor, compared with the reference voltage of the second comparator, output
Sampled signal.
Further, the driving circuit includes logic gate and push-pull driver circuit, the feedback signal of feed circuit and
The feedback signal of sample circuit exports control signal through logical gate operations, and control signal controls push-pull driver circuit, and control is filled
The turn-on and turn-off of metal-oxide-semiconductor in electric pathway.The push-pull driver circuit includes being made of NPN and PNP.
Further, the afterflow accumulator is by the one-way conduction characteristic afterflow of diode, after be transmitted to energy storage member
Part.
The utility model has the advantages that the charging voltage control circuit of the utility model, feed circuit acquires transformer-secondary voltage, sampling
Circuit acquires the electric current in charging path, feedback result and sampled result co- controlling driving circuit, and driving circuit drives transformation
Device turn-on and turn-off are easy to implement and are accurately controlled defibrillation voltage charging voltage.
Detailed description of the invention
Fig. 1 is Tthe utility model system block diagram.
Fig. 2 is transformer topology figure.
Fig. 3 is feed circuit topological diagram.
Fig. 4 is sample circuit topological diagram.
Fig. 5 is driving circuit topological diagram.
Fig. 6 is afterflow accumulator topological diagram.
Fig. 7 is the utility model overall circuit topological diagram.
Specific embodiment
The technical solution of the utility model is further described with reference to the accompanying drawings and examples.
As shown in Figure 1, charging voltage control circuit described in the utility model, including transformer 2, feed circuit 1, sampling
Circuit 5, driving circuit 4 and afterflow accumulator 3.As shown in Fig. 2, transformer topology figure, transformer contains primary coil, secondary
Coil and feedback coil.
Feed circuit 1 acquires the feedback voltage of feedback coil, exports feedback signal, and be transmitted to driving circuit；Sampling electricity
Road 5 acquires the charging current in primary charging coil access, exports feedback signal, and be transmitted to driving circuit；Driving circuit 4 by
The feedback signal of feed circuit and the feedback signal co- controlling of sample circuit, output control signal control MOS in charging path
The turn-on and turn-off of pipe realize the turn-on and turn-off of primary coil.Afterflow accumulator 3 provides afterflow by secondary coil, transmission
To energy-storage travelling wave tube.
It is the topological diagram of feed circuit as shown in Figure 3, feed circuit 1 includes first resistor R1 and first comparator A1, institute
The electric current in feed circuit acquisition feedback coil is stated, feedback voltage is generated in first resistor, the reference voltage phase with comparator
Compare, exports feedback signal.
It is sample circuit topological diagram as shown in Figure 4, sample circuit 5 includes second resistance R2,3rd resistor R3 and the second ratio
Compared with device A2, the sample circuit acquires the electric current in charging path, sampled voltage is generated on sampling resistor, with the second comparator
Reference voltage compare, export sampled signal.
The topological diagram of driving circuit as shown in Figure 5, driving circuit 4 by feed circuit feedback result and sample circuit
Sampled result co- controlling, according to the logical gate operations such as internal and-or inverter, output control signal, control signal controls NPN and PNP
The push-pull driver circuit of composition controls the metal-oxide-semiconductor in charging path, realizes the turn-on and turn-off of transformer.
It is the topological diagram of afterflow accumulator as shown in Figure 6, afterflow accumulator 3 provides afterflow by transformer secondary output, leads to
The one-way conduction characteristic afterflow for crossing diode D is then transmit to energy-storage travelling wave tube C, realizes charging energy-storing.
It is overall circuit topological diagram as shown in Figure 7, which merges each circuit module above-mentioned, reads convenient for whole
With understand circuit structure.The merging mode is a kind of embodiment of the utility model.
Claims (6)
1. a kind of charging voltage control circuit, which is characterized in that including transformer (2), feed circuit (1), sample circuit (5),
Driving circuit (4) and afterflow accumulator (3)；
The transformer (2) includes primary coil, secondary coil and feedback coil；
The feedback voltage of feed circuit (1) the acquisition feedback coil, exports feedback signal, and be transmitted to driving circuit；
Charging current in sample circuit (5) the acquisition primary charging coil access, exports feedback signal, and be transmitted to driving
Circuit；
The driving circuit (4) is by the feedback signal of feed circuit and the feedback signal co- controlling of sample circuit, output control
Signal controls the turn-on and turn-off of metal-oxide-semiconductor in charging path, realizes the turn-on and turn-off of primary coil；
The afterflow accumulator (3) provides afterflow by secondary coil, is transmitted to energy-storage travelling wave tube.
2. charging voltage control circuit according to claim 1, which is characterized in that the feed circuit (1) includes first
Resistance and first comparator, the feed circuit acquire the electric current in feedback coil, feedback voltage are generated in first resistor, with
The reference voltage of comparator compares, and exports feedback signal.
3. charging voltage control circuit according to claim 1, which is characterized in that the sample circuit (5) includes second
Resistance, 3rd resistor and the second comparator, the sample circuit acquire the electric current in charging path, generate and adopt on sampling resistor
Sample voltage exports sampled signal compared with the reference voltage of the second comparator.
4. charging voltage control circuit according to claim 1, which is characterized in that the driving circuit (4) includes logic
Door and push-pull driver circuit, the feedback signal of feed circuit and the feedback signal of sample circuit are exported through logical gate operations and are controlled
Signal, control signal control push-pull driver circuit, control the turn-on and turn-off of metal-oxide-semiconductor in charging path.
5. charging voltage control circuit according to claim 4, which is characterized in that the push-pull driver circuit include by
NPN and PNP composition.
6. charging voltage control circuit according to claim 1, which is characterized in that the afterflow accumulator (3) passes through
The one-way conduction characteristic afterflow of diode, after be transmitted to energy-storage travelling wave tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821272100.XU CN208522657U (en) | 2018-08-08 | 2018-08-08 | A kind of charging voltage control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821272100.XU CN208522657U (en) | 2018-08-08 | 2018-08-08 | A kind of charging voltage control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208522657U true CN208522657U (en) | 2019-02-19 |
Family
ID=65332946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821272100.XU Active CN208522657U (en) | 2018-08-08 | 2018-08-08 | A kind of charging voltage control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208522657U (en) |
-
2018
- 2018-08-08 CN CN201821272100.XU patent/CN208522657U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Suzhou ronghua Leasing Co., Ltd Assignor: JIUXIN MEDICAL SCIENCE & TECHNOLOGY (SUZHOU) Co.,Ltd. Contract record no.: X2020320010028 Denomination of utility model: A charging voltage control circuit Granted publication date: 20190219 License type: Exclusive License Record date: 20201204 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A charging voltage control circuit Effective date of registration: 20201207 Granted publication date: 20190219 Pledgee: Suzhou ronghua Leasing Co., Ltd Pledgor: JIUXIN MEDICAL SCIENCE & TECHNOLOGY (SUZHOU) Co.,Ltd. Registration number: Y2020320010224 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Suzhou ronghua Leasing Co.,Ltd. Assignor: JIUXIN MEDICAL SCIENCE & TECHNOLOGY (SUZHOU) CO.,LTD. Contract record no.: X2020320010028 Date of cancellation: 20220301 |
|
| EC01 | Cancellation of recordation of patent licensing contract | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220301 Granted publication date: 20190219 Pledgee: Suzhou ronghua Leasing Co.,Ltd. Pledgor: JIUXIN MEDICAL SCIENCE & TECHNOLOGY (SUZHOU) CO.,LTD. Registration number: Y2020320010224 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |