CN113452253A - Miniature low-power hybrid integrated circuit and converter thereof - Google Patents
Miniature low-power hybrid integrated circuit and converter thereof Download PDFInfo
- Publication number
- CN113452253A CN113452253A CN202110761239.0A CN202110761239A CN113452253A CN 113452253 A CN113452253 A CN 113452253A CN 202110761239 A CN202110761239 A CN 202110761239A CN 113452253 A CN113452253 A CN 113452253A
- Authority
- CN
- China
- Prior art keywords
- circuit
- unit
- feedback
- output
- input
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
-
- 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
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33507—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
-
- 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
-
- 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/145—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
- H02M7/155—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
- H02M7/1555—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with control circuit
- H02M7/1557—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with control circuit with automatic control of the output voltage or current
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention provides a miniature low-power hybrid integrated circuit and a converter thereof. The hybrid integrated circuit includes a first transforming component and a second transforming component; the first conversion component comprises an input circuit, a conversion circuit, an output circuit and a feedback circuit; the conversion circuit comprises a transformer and a plurality of switching devices; the output circuit comprises a rectifying circuit and a filter circuit; the second transformation component comprises an input unit, an inversion unit, a resonance unit, a transformer combination unit, a rectification unit, an output unit and a feedback unit. The hybrid converter comprises an AC/DC converter and a DC-DC converter; the AC/DC converter and the DC-DC converter are connected through a preposed control circuit. The prepositive control circuit is connected to the first feedback branch and the second feedback branch through the reference source circuit; the input end of the first feedback branch is connected with the output end of the second feedback branch through the bias circuit. The invention realizes hybrid AC/DC and DC-DC conversion.
Description
Technical Field
The invention belongs to the technical field of converters and switching power supplies, and particularly relates to a miniature low-power hybrid integrated circuit and a converter thereof.
Background
The electric energy used in daily life is ac power from the power grid, but in practice most electronic devices, such as computers and their peripherals, calculators, televisions, LED lighting devices and Hi-Fi devices, and various electronic instruments, are powered by dc power. The dc power source may be a battery or an active power source. Most of these devices require not only an effectively filtered and regulated voltage, but also a conversion to a certain voltage value during operation of the device.
The switching power supply is a power electronic device which is widely applied in the fields of small consumer electronics such as mobile phones and MP3, large aerospace and the like. This is because the electronic system requires a power supply system to supply energy. Most of the electric energy in daily life comes from the mains (high-voltage alternating current). However, the electronic systems have different requirements on power supplies, such as the current small electronic systems often require a low-voltage dc power supply of 1V to 5V. Therefore, the utility power is generally converted to be suitable for use in an electronic system, such as by an AC/DC converter.
Meanwhile, various devices powered by batteries, such as mobile phones, digital players, portable game machines and the like, have increasingly powerful functions and consume more and more electric energy, and at least one set of DC/DC power converter for mutually converting the batteries and the working voltage is required for the devices; in addition, in a direct-current power grid, a large-capacity DC/DC converter is an indispensable key device for interconnection of different voltage classes, large-scale renewable energy collection and realization of development of a medium-voltage direct-current power distribution network to a low-voltage direct-current micro-grid.
The inventor finds that the existing AC/DC converter still has great defects in the aspects of safety protection and feedback control, and particularly in the application of a low-power microcircuit, the existing AC/DC converter cannot adapt to the power change requirement and cannot output stable direct current low voltage; meanwhile, the existing DC/DC converter has great defects in the aspects of safety protection and feedback control, and particularly in the application of a low-power microcircuit, the existing DC/DC converter cannot adapt to the requirement of power change and cannot output stable low voltage; in addition, the AC-DC and DC-DC conversion from the AC end to the electric equipment end usually involves a plurality of modules, and the prior art does not relate to a unified integrated architecture of hybrid conversion.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides a micro low-power hybrid integrated circuit and a converter thereof. The hybrid integrated circuit includes a first transforming component and a second transforming component; the first conversion component comprises an input circuit, a conversion circuit, an output circuit and a feedback circuit; the conversion circuit comprises a transformer and a plurality of switching devices; the output circuit comprises a rectifying circuit and a filter circuit; the second transformation component comprises an input unit, an inversion unit, a resonance unit, a transformer combination unit, a rectification unit, an output unit and a feedback unit. The hybrid converter comprises an AC/DC converter and a DC-DC converter; the AC/DC converter and the DC-DC converter are connected through a preposed control circuit. The prepositive control circuit is connected to the first feedback branch and the second feedback branch through the reference source circuit; the input end of the first feedback branch is connected with the output end of the second feedback branch through the bias circuit. The invention realizes hybrid AC/DC and DC-DC conversion.
In the present invention, the first conversion component performs AC-DC conversion, and the second conversion component performs DC-DC conversion. The first conversion assembly and the second conversion assembly have similarities in partial structure, and for the sake of convenience of distinction, in the first conversion assembly, each functional module is described using "circuit", and in the second conversion assembly, each functional module is described using "unit"; in some cases, the two conversion components are mixed, but for a specific conversion component, because the structures of the two conversion components are relatively independent, the mixing in some cases does not affect the correct understanding of the respective implementation schemes by those skilled in the art.
Specifically, the first conversion component comprises an input circuit, a conversion circuit, an output circuit and a feedback circuit; the conversion circuit comprises a transformer and a plurality of switching devices; the output circuit comprises a rectifying circuit and a filter circuit;
the second transformation component comprises an input unit, an inversion unit, a resonance unit, a transformer combination unit, a rectification unit, an output unit and a feedback unit;
the first conversion assembly is connected with the second conversion assembly through a front control circuit;
the prepositive control circuit is connected with the input circuit and the conversion circuit;
the second conversion component further comprises an input protection circuit and an output protection circuit;
the conversion circuit further comprises a first protection circuit and a second protection circuit;
the first protection circuit is connected with the input circuit, and the second protection circuit is connected with the output circuit and the feedback circuit;
the feedback unit comprises a first feedback unit and a second feedback unit;
the input protection circuit is connected with the output end of the first feedback unit and the input unit;
the output protection circuit is connected with the input end of the second feedback unit and the output unit.
Next, the first transformation component and the second transformation component are described, respectively. As previously mentioned, in the first conversion assembly, the respective functional modules are described using "circuits".
The first conversion component comprises an input circuit, a conversion circuit, an output circuit, a sampling circuit power factor correction circuit, a feedback circuit, a pre-control circuit, a first protection circuit and a second protection circuit; the first protection circuit is connected with the input circuit, and the second protection circuit is connected with the output circuit and the feedback circuit; the feedback circuit comprises a first feedback branch and a second feedback branch; the first feedback branch is connected with the first protection circuit, and the second feedback branch is connected with the second protection circuit; the front control circuit is connected with the input circuit and the conversion circuit. The power factor correction circuit is connected with the output circuit and is used for detecting the power of the load equipment connected with the output circuit so as to correct the output voltage detected by the second protection circuit.
More specifically, the first protection circuit is an over-temperature protection circuit; the over-temperature protection circuit comprises a temperature detection circuit; the temperature detection circuit detects the temperature of the circuit board at the input end of the AC/DC converter, and when the temperature exceeds a preset value, the input circuit is closed.
The second protection circuit is an overvoltage protection circuit, and the overvoltage protection circuit comprises a voltage detection circuit;
the voltage detection circuit detects the output voltage of the AC/DC converter, and when the variation value of the output voltage is higher than a preset range, an early warning signal is sent to the second feedback branch circuit, so that the second control feedback branch circuit adjusts the state of a switching device in the conversion circuit through the front control circuit.
Further, the feedback circuit further comprises a reference source circuit, a bias circuit, a first error amplifier and a second error comparator;
the non-inverting input end of the first error amplifier is connected with the reference source circuit; and the inverting input end of the first error amplifier is connected with the output end of the second feedback branch.
And the positive input end of the second error comparator is connected with the reference source circuit, and the negative input end of the second error comparator is connected with the second protection circuit.
The second conversion component comprises an input protection circuit (unit), an output protection circuit (unit), an input unit, an inversion unit, a resonance unit, a transformer combination unit, a rectification unit, an output unit, a first feedback branch (unit) and a second feedback branch (unit); the input end of the first feedback branch (unit) is connected with the output end of the second feedback branch (unit) through a bias branch; the input protection circuit is connected with the output end of the first feedback branch and the input unit; the output protection circuit is connected with the input end of the second feedback branch and the output unit; a pre-control unit is connected between the inverter unit and the resonance unit and is connected to a reference source circuit through a starting circuit; the reference source circuit is connected with the first feedback branch (unit) and the second feedback branch (unit) at the same time.
On the AC-DC conversion side, the invention improves the prior art at least in the aspects of safety protection, feedback control and the like, and effectively embodies that DC low voltage suitable for various low-power consumption electronic equipment can be stably output, and simultaneously, the circuit safety is ensured;
on the DC-DC conversion side, the matching of the multiple protection circuits, various feedback circuits and the input unit is adopted, so that the output voltage can be stabilized, and the working safety of the converter can be ensured; in particular, the related art is improved in terms of safety protection, feedback control, and the like, and is effectively embodied such that a DC low voltage suitable for various low-power-consumption electronic devices can be stably output while circuit safety is ensured.
Further advantages of the invention will be apparent in the detailed description section in conjunction with the drawings attached hereto.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic diagram of a main structure of a micro small-power hybrid integrated circuit according to an embodiment of the present invention
FIG. 2 is a schematic diagram of a first conversion module in the small-power hybrid integrated circuit shown in FIG. 1
FIG. 3 is a schematic diagram of a specific internal circuit structure of the second conversion module shown in FIG. 2
FIG. 4 is a schematic diagram of a second conversion module in the small-power hybrid integrated circuit shown in FIG. 1
FIG. 5 is a schematic diagram of a part of the internal structure of the second conversion assembly shown in FIG. 4
FIG. 6 is a schematic diagram of a feedback circuit of the first conversion module in FIG. 1
FIG. 7 is a schematic diagram of the main structure of a micro low-power hybrid converter according to an embodiment of the present invention
Detailed Description
The invention is further described with reference to the following drawings and detailed description.
It should be noted that the description of the drawings given in the various embodiments of the present invention is merely schematic and does not represent all of the specific circuit configurations;
the present invention is not limited to the specific module structure described in the prior art. The prior art mentioned in the background section can be used as part of the invention to understand the meaning of some technical features or parameters. The scope of the present invention is defined by the claims.
Fig. 1 is a schematic diagram of a main structure of a micro low-power hybrid integrated circuit according to an embodiment of the present invention.
In fig. 1, it is shown in summary that the hybrid integrated circuit includes a first transforming component and a second transforming component, which are connected by a front-end control circuit.
The figures and embodiments that follow are specific descriptions of the first conversion assembly and the second conversion assembly, respectively.
Referring first to fig. 2, fig. 2 shows that the first conversion assembly includes an input circuit, a conversion circuit, an output circuit, and a feedback circuit; the conversion circuit comprises a transformer and a plurality of switching devices; the output circuit comprises a rectifying circuit and a filtering circuit.
FIG. 2 also includes a first protection circuit and a second protection circuit;
the first protection circuit is connected with the input circuit, and the second protection circuit is connected with the output circuit and the feedback circuit.
As a further improved part, on the basis of fig. 2, further reference is made to fig. 3.
As a further improvement, fig. 3 further includes a front control circuit; the feedback circuit comprises a first feedback branch and a second feedback branch; the first feedback branch is connected with the first protection circuit, and the second feedback branch is connected with the second protection circuit; the prepositive control circuit is connected with the input circuit and the conversion circuit.
More specifically, as a more improved specific embodiment, the feedback circuit further includes a reference source circuit and a bias circuit;
the prepositive control circuit is connected to the first feedback branch and the second feedback branch through the reference source circuit;
the input end of the first feedback branch is connected with the output end of the second feedback branch through the bias circuit.
In fig. 3, the bias circuit provides bias feedback signals to the first feedback branch and the second feedback branch.
The reference source circuit comprises a starting circuit and a sub-threshold current generating circuit;
the starting circuit is connected with the front-end control circuit, the sub-threshold current generating circuit obtains the bias feedback signal generated by the bias branch circuit from the feedback branch circuit, and the output sub-threshold current is used as the input signal of the front-end control circuit.
Although not shown, as a further supplementary improvement, the feedback circuit further includes a sampling circuit; the sampling circuit is connected with the second protection circuit and the feedback branch circuit.
Although not shown, as a further supplementary improvement, the feedback circuit further includes a sampling circuit power factor correction circuit;
the power factor correction circuit is connected with the output circuit and is used for detecting the power of load equipment connected with the output circuit and correcting the output voltage detected by the second protection circuit based on the detected power.
Obviously, the further improvement scheme can adapt to different output equipment loads, thereby enabling the output voltage to be adaptively adjusted.
Referring next to fig. 4, the second transformation assembly illustrated in fig. 4 includes an input unit, an inversion unit, a resonance unit, a transformer combination unit, a rectification unit, an output unit, and a feedback unit;
specifically, the converter further comprises an input protection circuit and an output protection circuit; the inversion unit is connected with the transformer combination unit through the resonance unit; the transformer combination unit is connected to the output unit through the rectifying unit.
The starting circuit is connected with the front control unit;
the front control unit acquires a bias feedback signal generated by the bias branch circuit to generate a sub-threshold current as a front control signal of the reference source circuit.
On the basis of fig. 4, further reference is made to fig. 5. The circuit also comprises an input protection circuit and an output protection circuit; the input protection circuit is connected with the output end of the first feedback branch and the input unit; the output protection circuit is connected with the input end of the second feedback branch and the output unit;
a pre-control unit is connected between the inverter unit and the resonance unit and is connected to a reference source circuit through a starting circuit;
the reference source circuit is connected with the first feedback branch and the second feedback branch at the same time.
In fig. 5, the reference source circuit is connected to the non-inverting input terminals of the first feedback branch and the second feedback branch;
preferably, the first feedback branch is an error comparator; the second feedback branch is an error amplifier.
The starting circuit is connected with the front control unit;
the front control unit acquires a bias feedback signal generated by the bias branch circuit to generate a sub-threshold current as a front control signal of the reference source circuit.
As a further preference, the feedback unit further comprises a power factor correction circuit; the power factor correction circuit is connected with the output unit and used for detecting the power of load equipment connected with the output unit and correcting the output voltage detected by the output protection circuit based on the detected power.
Obviously, further preferred solutions are able to adapt to different output device loads, thereby enabling the output voltage to be adaptively adjusted.
Because the bias and the prepositive control exist between the two feedback branches, the starting circuit is connected with the prepositive control circuit, obtains the bias feedback signal generated by the bias branch from the feedback branch, and obtains the prepositive control signal by taking the output subthreshold current as the input signal of the prepositive control circuit of the reference source circuit.
In the above embodiment, preferably, the inverter unit includes a multi-stage inverter, and a last stage of the multi-stage inverter is a full-bridge inverter circuit.
Correspondingly, the resonance unit is an LLC resonance circuit; LLC resonant circuit with full-bridge inverter circuit connects in parallel, and full-bridge contravariant and LLC cooperation are parallelly connected to be realized, can reduce harmonic interference.
In addition, the inverter unit is connected with the transformer combination unit through the resonance unit; the transformer combination unit is connected to the output unit through the rectifying unit; the second feedback branch generates a second feedback output signal based on the output signal fed back by the output unit, and the second feedback output signal is used as the input of the first feedback branch.
As mentioned above, the first transforming component and the second transforming component have similarities in part of the structure, particularly, in the feedback circuit (unit). Therefore, fig. 6 is further illustrated by taking only the feedback circuit used by the first conversion component as an example.
In fig. 6, the feedback circuit includes an error amplifier; the first feedback branch comprises a first error amplifier, and the non-inverting input end of the first error amplifier is connected with the reference source circuit; and the inverting input end of the first error amplifier is connected with the output end of the second feedback branch.
The feedback circuit comprises an error comparator; the second feedback branch comprises a second error comparator; and the positive input end of the second error comparator is connected with the reference source circuit, and the negative input end of the second error comparator is connected with the second protection circuit.
The reference source circuit provides a reference signal for the feedback branch. The starting circuit is connected with the preposed control circuit due to the existence of bias and preposed control between two feedback branches, the subthreshold current generating circuit obtains a bias feedback signal generated by the bias branch from the feedback branch and takes the output subthreshold current as an input signal of the preposed control circuit.
In an embodiment of the last aspect, fig. 7 shows a miniature low-power hybrid converter comprising an AC/DC converter and a DC-DC converter.
As another protection form, the AC/DC converter is the first conversion component in the foregoing embodiment, and the DC-DC converter is the second conversion component in the foregoing embodiment.
In fig. 7, it is shown that the AC/DC converter and the DC-DC converter are connected by the pre-control circuit, corresponding to fig. 1.
Thus, the AC/DC converter includes an input circuit, a conversion circuit, an output circuit, and a feedback circuit; the conversion circuit comprises a transformer and a plurality of switching devices; the output circuit comprises a rectifying circuit and a filter circuit;
the AC/DC converter further comprises a pre-control circuit, a first protection circuit and a second protection circuit;
the first protection circuit is connected with the input circuit, and the second protection circuit is connected with the output circuit and the feedback circuit;
the feedback circuit comprises a first feedback branch and a second feedback branch;
the first feedback branch is connected with the first protection circuit, and the second feedback branch is connected with the second protection circuit;
the prepositive control circuit is connected with the input circuit and the conversion circuit;
the DC-DC converter comprises an input unit, an inversion unit, a resonance unit, a transformer combination unit, a rectification unit, an output unit and a feedback unit;
the feedback unit comprises a first feedback unit and a second feedback unit;
the input end of the first feedback unit is connected with the output end of the second feedback unit through a bias branch;
the DC-DC also comprises an input protection circuit and an output protection circuit;
the input protection circuit is connected with the output end of the first feedback unit and the input unit;
the output protection circuit is connected with the input end of the second feedback unit and the output unit;
a pre-control unit is connected between the inverter unit and the resonance unit and is connected to a reference source circuit through a starting circuit;
the reference source circuit is connected with the first feedback unit and the second feedback unit at the same time.
Other structures are not described in detail.
The present invention improves the prior art at least in terms of safety protection and feedback control, etc., as compared to the common principle AC-DC framework of the prior art, and is effectively embodied in that a DC low voltage suitable for various low power consumption electronic devices can be stably outputted while ensuring circuit safety.
The present invention improves the prior art in combination with an input unit at least in terms of safety protection and feedback control, etc., as compared with the general principle DC-DC framework of the prior art, and is embodied in effect such that a DC low voltage suitable for various low power consumption electronic devices can be stably output while ensuring circuit safety.
Therefore, the invention realizes a miniature low-power hybrid integrated circuit and a converter thereof, and realizes hybrid AC/DC and DC-DC conversion in a unified architecture.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A miniature low-power hybrid integrated circuit, the hybrid integrated circuit comprising a first transforming component and a second transforming component;
the method is characterized in that:
the first conversion component comprises an input circuit, a conversion circuit, an output circuit and a feedback circuit; the conversion circuit comprises a transformer and a plurality of switching devices; the output circuit comprises a rectifying circuit and a filter circuit;
the second transformation component comprises an input unit, an inversion unit, a resonance unit, a transformer combination unit, a rectification unit, an output unit and a feedback unit;
the first conversion assembly is connected with the second conversion assembly through a front control circuit;
the prepositive control circuit is connected with the input circuit and the conversion circuit;
the second conversion component further comprises an input protection circuit and an output protection circuit;
the conversion circuit further comprises a first protection circuit and a second protection circuit;
the first protection circuit is connected with the input circuit, and the second protection circuit is connected with the output circuit and the feedback circuit;
the feedback unit comprises a first feedback unit and a second feedback unit;
the input protection circuit is connected with the output end of the first feedback unit and the input unit;
the output protection circuit is connected with the input end of the second feedback unit and the output unit.
2. A miniature low power hybrid integrated circuit as claimed in claim 1, wherein:
the feedback circuit comprises a first feedback branch and a second feedback branch;
the first feedback branch is connected with the first protection circuit, and the second feedback branch is connected with the second protection circuit.
3. A miniature low-power hybrid integrated circuit as claimed in claim 1 or 2, wherein:
the feedback circuit further comprises a first reference source circuit and a first bias circuit;
the front control circuit is connected to the first feedback branch and the second feedback branch through the first reference source circuit;
the input end of the first feedback branch is connected with the output end of the second feedback branch through a first bias circuit.
4. A miniature low power hybrid integrated circuit as claimed in claim 1, wherein:
a front control unit is connected between the inverter unit and the resonance unit and is connected to a second reference source circuit through a starting circuit;
the second reference source circuit is connected with the first feedback branch and the second feedback branch at the same time.
5. A miniature low-power hybrid integrated circuit as claimed in claim 1 or 4, wherein:
the inversion unit comprises a multi-stage inverter, and the last stage of the multi-stage inverter is a full-bridge inverter circuit.
6. A miniature low power hybrid integrated circuit as claimed in claim 4, wherein:
the second reference source circuit is connected to the non-inverting input ends of the first feedback unit and the second feedback unit;
the first feedback unit is an error comparator; the second feedback unit is an error amplifier.
7. A miniature low power hybrid integrated circuit as claimed in claim 3, wherein:
the first feedback branch comprises a first error amplifier, and the non-inverting input end of the first error amplifier is connected with the first reference source circuit; and the inverting input end of the first error amplifier is connected with the output end of the second feedback branch.
8. A miniature low power hybrid converter, the hybrid converter comprising an AC/DC converter and a DC-DC converter;
the method is characterized in that:
the AC/DC converter comprises an input circuit, a conversion circuit, an output circuit and a feedback circuit; the conversion circuit comprises a transformer and a plurality of switching devices; the output circuit comprises a rectifying circuit and a filter circuit;
the AC/DC converter further comprises a pre-control circuit, a first protection circuit and a second protection circuit;
the first protection circuit is connected with the input circuit, and the second protection circuit is connected with the output circuit and the feedback circuit;
the feedback circuit comprises a first feedback branch and a second feedback branch;
the first feedback branch is connected with the first protection circuit, and the second feedback branch is connected with the second protection circuit;
the prepositive control circuit is connected with the input circuit and the conversion circuit;
the DC-DC converter comprises an input unit, an inversion unit, a resonance unit, a transformer combination unit, a rectification unit, an output unit and a feedback unit;
the feedback unit comprises a first feedback unit and a second feedback unit;
the input end of the first feedback unit is connected with the output end of the second feedback unit through a bias branch;
the DC-DC also comprises an input protection circuit and an output protection circuit;
the input protection circuit is connected with the output end of the first feedback unit and the input unit;
the output protection circuit is connected with the input end of the second feedback unit and the output unit;
a pre-control unit is connected between the inverter unit and the resonance unit and is connected to a reference source circuit through a starting circuit;
the reference source circuit is connected with the first feedback unit and the second feedback unit at the same time.
9. A miniature low power hybrid converter as defined in claim 8, wherein:
the AC/DC converter and the DC-DC converter are connected through the preposed control circuit.
10. A miniature low power hybrid converter as defined in claim 8, wherein:
the prepositive control circuit is connected to the first feedback branch and the second feedback branch through the reference source circuit;
and the input end of the first feedback branch is connected with the output end of the second feedback branch through a biasing circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110761239.0A CN113452253B (en) | 2021-07-06 | 2021-07-06 | Miniature low-power hybrid integrated circuit and converter thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110761239.0A CN113452253B (en) | 2021-07-06 | 2021-07-06 | Miniature low-power hybrid integrated circuit and converter thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113452253A true CN113452253A (en) | 2021-09-28 |
| CN113452253B CN113452253B (en) | 2022-05-06 |
Family
ID=77815313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110761239.0A Active CN113452253B (en) | 2021-07-06 | 2021-07-06 | Miniature low-power hybrid integrated circuit and converter thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113452253B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060077700A1 (en) * | 2002-04-24 | 2006-04-13 | O2 International Limited | High-efficiency adaptive DC/AC converter |
| JP2012156700A (en) * | 2011-01-25 | 2012-08-16 | Ricoh Co Ltd | Error amplification circuit and switching regulator |
| CN203788154U (en) * | 2014-04-23 | 2014-08-20 | 深圳市时代创新科技有限公司 | Multipath output DC/DC secondary power supply system |
| WO2015096223A1 (en) * | 2013-12-27 | 2015-07-02 | 深圳市航嘉驰源电气股份有限公司 | Power conversion circuit |
| CN104967323A (en) * | 2015-06-12 | 2015-10-07 | 南京理工大学 | Low-output-voltage-ripple discontinuous-mode flyback power factor correction converter |
| CN105183063A (en) * | 2015-09-23 | 2015-12-23 | 成都华微电子科技有限公司 | Low-dropout regulator with broadband high power supply rejection ratio |
| CN112947666A (en) * | 2021-03-02 | 2021-06-11 | 江苏润石科技有限公司 | Linear voltage stabilizer with high power supply rejection ratio and large-current low-noise amplifier |
| CN112994625A (en) * | 2021-03-02 | 2021-06-18 | 江苏润石科技有限公司 | Zero-temperature-drift variable-swing operational amplifier |
-
2021
- 2021-07-06 CN CN202110761239.0A patent/CN113452253B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060077700A1 (en) * | 2002-04-24 | 2006-04-13 | O2 International Limited | High-efficiency adaptive DC/AC converter |
| JP2012156700A (en) * | 2011-01-25 | 2012-08-16 | Ricoh Co Ltd | Error amplification circuit and switching regulator |
| WO2015096223A1 (en) * | 2013-12-27 | 2015-07-02 | 深圳市航嘉驰源电气股份有限公司 | Power conversion circuit |
| CN203788154U (en) * | 2014-04-23 | 2014-08-20 | 深圳市时代创新科技有限公司 | Multipath output DC/DC secondary power supply system |
| CN104967323A (en) * | 2015-06-12 | 2015-10-07 | 南京理工大学 | Low-output-voltage-ripple discontinuous-mode flyback power factor correction converter |
| CN105183063A (en) * | 2015-09-23 | 2015-12-23 | 成都华微电子科技有限公司 | Low-dropout regulator with broadband high power supply rejection ratio |
| CN112947666A (en) * | 2021-03-02 | 2021-06-11 | 江苏润石科技有限公司 | Linear voltage stabilizer with high power supply rejection ratio and large-current low-noise amplifier |
| CN112994625A (en) * | 2021-03-02 | 2021-06-18 | 江苏润石科技有限公司 | Zero-temperature-drift variable-swing operational amplifier |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113452253B (en) | 2022-05-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Cai et al. | Design of double-line-frequency ripple controller for quasi-single-stage AC–DC converter with audio susceptibility model | |
| CN203278632U (en) | Uninterrupted power supply (UPS) | |
| CN113271019B (en) | Microcircuit DC-DC converter and conversion method thereof | |
| KR20100136086A (en) | Uninterruptible dc power supply system | |
| CN113452253B (en) | Miniature low-power hybrid integrated circuit and converter thereof | |
| CN116582005B (en) | Electric energy conversion circuit, electric energy conversion method and electric energy conversion equipment | |
| US20150171663A1 (en) | Uninterruptible power systems using current source rectifiers and methods of operating the same | |
| CN101359248A (en) | Power supplier with frequency conversion function and computer system thereof | |
| CN207304013U (en) | The power factor correction circuit compared based on stagnant ring | |
| US10992152B2 (en) | Uninterruptible power supply and method of operating the same | |
| CN207559875U (en) | Power inverter power module and Modularized power inverter | |
| Guo et al. | Comparison between boost and buckboost implemented PFC inverter with build-in soft switching and a unified controller | |
| CN209283120U (en) | Intelligent high frequency switch power | |
| CN202004667U (en) | Direct current regulated power supply | |
| CN217010403U (en) | Charger circuit capable of adapting to multi-voltage output | |
| CN216413981U (en) | Portable power supply device | |
| CN100438300C (en) | Power supply detecting cirucit with power-saving under ready condition | |
| CN219960411U (en) | Synchronous rectification control circuit and constant voltage power supply | |
| CN211670671U (en) | UPS control system | |
| CN219893178U (en) | Power supply circuit and electric equipment | |
| CN220325511U (en) | Switch power supply, circuit board and washing machine | |
| CN218771769U (en) | Bridgeless PFC converter system without current sampling | |
| CN218549778U (en) | Integrated driving plate and air conditioner | |
| CN113488461B (en) | Thick film hybrid integrated circuit applied to micro-circuit system | |
| CN100511933C (en) | Double-output power supplier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |