CN104467401A - Voltage conversion integrated circuit - Google Patents
Voltage conversion integrated circuit Download PDFInfo
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- CN104467401A CN104467401A CN201310418158.6A CN201310418158A CN104467401A CN 104467401 A CN104467401 A CN 104467401A CN 201310418158 A CN201310418158 A CN 201310418158A CN 104467401 A CN104467401 A CN 104467401A
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- voltage
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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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention provides a voltage conversion integrated circuit, comprising a first switch, a second switch, a third switch, a fourth switch and a control circuit. The first switch is coupled between a first voltage pin and a first switch pin. The second switch is coupled between a second switch pin and a second voltage pin. The third switch is coupled between the first switch pin and a third voltage pin. The fourth switch is coupled between the second switch pin and a reference grounding terminal. The first to fourth switches are controlled by control signals to connect and disconnect. The control circuit is coupled to the first to fourth switches and receives mode setting signals in order to generate the control signals.
Description
Technical field
The present invention relates to a kind of voltage transitions integrated circuit, particularly relate to a kind of voltage transitions integrated circuit of convertible pattern.
Background technology
In the technical field of existing boosted voltage change-over circuit, common boosted voltage change-over circuit comprises inductance type and capacitive voltage conversion circuit.
Capacitive voltage conversion circuit has an electric capacity and multiple switch, capacitive voltage conversion circuit can by the switching action repeatedly of switch, change the voltage level that electric capacity two ends receive, and pass through the discharge and recharge action of electric capacity, carrying out booster tension change-over circuit makes the voltage level of produced boost output voltage be the several times of input voltage, has carried out the action of boosting.
Induction type voltage change-over circuit then has an inductance and multiple switch, by the switching action of switch periods, makes the discharge and recharge action that inductance can carry out repeatedly according to input voltage, and produces the boost output voltage being several times as much as input voltage by this.
Because capacitive voltage conversion circuit and induction type voltage change-over circuit need different circuit elements to carry out fit applications, in the voltage conversion circuit of integrated circuit, capacitive voltage conversion circuit and induction type voltage change-over circuit two kinds of options to be provided simultaneously to select for user, a lot of pins certainly will be needed to carry out fit applications.Thus, the layout area of integrated circuit will certainly increase, and causes the rising of cost.
Summary of the invention
The invention provides a kind of voltage transitions integrated circuit, the pattern of its operation convertible.
Voltage transitions integrated circuit of the present invention comprises the first switch, second switch, the 3rd switch, the 4th switch and control circuit.First switch is coupled between the first voltage pin and the first switch pin, and the first switch is controlled by control signal to be turned on or off.Second switch is coupled between second switch pin and the second voltage pin, and second switch is controlled by control signal to be turned on or off.3rd switch is coupled between the first switch pin and tertiary voltage pin, and the 3rd switch is controlled by control signal to be turned on or off.4th switch is coupled in second switch pin and with reference between earth terminal, the 4th switch is controlled by control signal to be turned on or off.Control circuit couples first, second, third and the 4th switch, and receiving mode setting signal is to produce control signal.
In one embodiment of this invention, above-mentioned pattern setting signal is inductance type booster circuit in order to setting voltage converter ic or is capacitance type voltage-boosting circuit.
In one embodiment of this invention, the first above-mentioned voltage pin is in order to receive input voltage, second and third voltage pin produces boost output voltage, first and second switch pin is coupled to the first end of inductance, and the second termination of inductance receives input voltage, pattern setting signal setting voltage converter ic is inductance type booster circuit.
In one embodiment of this invention, first and second above-mentioned voltage pin is in order to receive input voltage, tertiary voltage pin produces boost output voltage, first and second switch pin is coupled to the first end of inductance, and the second termination of inductance receives input voltage, pattern setting signal setting voltage converter ic is inductance type booster circuit.
In one embodiment of this invention, the second above-mentioned voltage pin produces boost output voltage, second switch pin is coupled to the first end of inductance, and the second termination of inductance receives input voltage, first and this tertiary voltage pin and the first switch pin suspension joint, pattern setting signal setting voltage converter ic is inductance type booster circuit.
In one embodiment of this invention, first and second above-mentioned voltage pin is in order to receive input voltage, tertiary voltage pin produces boost output voltage, first switch pin is coupled to the first end of electric capacity, and second switch pin is coupled to the second end of electric capacity, pattern setting signal setting voltage converter ic is capacitance type voltage-boosting circuit.
In one embodiment of this invention, voltage transitions integrated circuit also comprises pattern setting pin, and pattern setting pin is coupled to control circuit setting signal in a receiving mode.
In one embodiment of this invention, voltage transitions integrated circuit also comprises pattern setting signal generator, and pattern setting signal generator is coupled to control circuit setting signal to generate the model.
Based on above-mentioned, the present invention fixes in pin and configures multiple switch in voltage transitions integrated circuit, by the annexation different from voltage pin and switch pin and electric capacity or inductance, and is produced the control signal of control switch by pattern setting signal.Thus, single voltage transitions integrated circuit in the quantity not needing the pin increasing integrated circuit, can play the part of the booster circuit of condenser type or inductance type, the utilization benefit of booster tension converter ic.
For above-mentioned feature and advantage of the present invention can be become apparent, special embodiment below, and coordinate accompanying drawing to be described in detail below.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the voltage transitions integrated circuit 100 of one embodiment of the invention;
Fig. 2 A is the schematic diagram of the voltage transitions integrated circuit 200 of another embodiment of the present invention;
Fig. 2 B is the schematic diagram of another execution mode of the voltage transitions integrated circuit 200 of another embodiment of the present invention;
Fig. 3 A ~ Fig. 3 D is respectively the schematic diagram of the different execution mode of voltage transitions integrated circuit.
Description of reference numerals:
100,200: voltage transitions integrated circuit;
110,210: control circuit;
SW1 ~ SW4: switch;
VP1 ~ VP3: voltage pin;
SWP1, SWP2: switch pin;
MSP: pattern setting pin;
GND: with reference to earth terminal;
CTRL [1] ~ CTRL [4]: control signal;
MS: pattern setting signal;
220: pattern setting signal generator;
C1: electric capacity;
L1: inductance;
VIN: input voltage;
VOUT: boost output voltage.
Embodiment
With reference to the schematic diagram that Fig. 1, Fig. 1 are the voltage transitions integrated circuit 100 of one embodiment of the invention.Voltage transitions integrated circuit 100 comprises interrupteur SW 1 ~ SW4, control circuit 110, voltage pin VP1 ~ VP3 and switches pin SWP1 and SWP2.Wherein, interrupteur SW 1 is coupled between voltage pin VP1 and switch pin SWP1, interrupteur SW 2 is coupled between voltage pin VP2 and switch pin SWP2, interrupteur SW 3 is coupled between voltage pin VP3 and switch pin SWP1, and interrupteur SW 4 is coupled in reference between earth terminal GND and switch pin SWP2.In addition, interrupteur SW 1 ~ SW4 is all coupled to control circuit 110, and control circuit 110 produces control signal CTRL, and wherein, control signal CTRL comprises control signal CTRL [1] ~ CTRL [4].
Interrupteur SW 1 ~ SW4 is controlled by control signal CTRL [1] ~ CTRL [4] respectively to be turned on or off, wherein, interrupteur SW 1 ~ SW4 can respectively according to control signal CTRL [1] ~ CTRL [4] to be repeatedly turned on or off, and conducting when interrupteur SW 2, SW4 are different.
In addition, receiving mode setting signal MS gone back by control circuit 110, and produces control signal CTRL [1] ~ CTRL [4] according to pattern setting signal MS.Wherein, pattern setting signal MS is capacitance type voltage-boosting circuit or voltage-type booster circuit in order to setting voltage converter ic 100.Wherein, when pattern setting signal MS setting voltage converter ic 100 is capacitance type voltage-boosting circuit, the control signal CTRL [1] that control circuit 110 produces ~ CTRL [4] can carry out the corresponding switching action of capacitance type voltage-boosting circuit by control switch SW1 ~ SW4.Otherwise, when pattern setting signal MS setting voltage converter ic 100 is inductance type booster circuit, the control signal CTRL [1] that control circuit 110 produces ~ CTRL [4] can carry out the corresponding switching action of inductance type booster circuit by control switch SW1 ~ SW4.
About the technology of switching over action known by the tool those of ordinary skill of this area of capacitance type voltage-boosting circuit and inductance type booster circuit, seldom repeat for this reason at this.
With reference to Fig. 2 A, Fig. 2 A is the schematic diagram of the voltage transitions integrated circuit 200 of another embodiment of the present invention.Voltage transitions integrated circuit 200 comprises interrupteur SW 1 ~ SW4, control circuit 110, voltage pin VP1 ~ VP3 and switches pin SWP1 and SWP2.Further, voltage transitions integrated circuit 200 also comprises pattern setting pin MSP.Pattern setting pin MSP is coupled to control circuit 210, and control circuit 210 carrys out receiving mode setting signal MS by pattern setting pin MSP by voltage transitions integrated circuit 200 outside.That is, voltage transitions integrated circuit 200 can select the mode of (pin option) by pin, carry out the set action of pattern setting signal MS, or also can be carried out transfer mode setting signal MS by another integrated circuit outside voltage transitions integrated circuit 200 with the pattern of setting voltage converter ic 200.
With reference to Fig. 2 B, Fig. 2 B is the schematic diagram of another execution mode of the voltage transitions integrated circuit 200 of another embodiment of the present invention.In fig. 2b, voltage transitions integrated circuit 200 does not arrange pattern setting pin MSP, and separately comprises pattern setting signal generator 220.Pattern setting signal generator 220 is coupled to control circuit 210, pattern setting signal generator 220 setting signal MS to generate the model, and transfer mode setting signal MS is to control circuit 210.At this, pattern setting signal generator 220 can be a read-only memory, and produces pattern setting signal MS according to the data stored by it.User by entering data to the programming of pattern setting signal generator 220, can carry out set model setting signal MS.Or, pattern setting signal generator 220 also can be a command decoder, order data can be sent to pattern setting signal generator 220 by user, and pattern setting signal generator 220 is decoded order data that user reaches is to produce pattern setting signal MS.
In application circuit, voltage transitions integrated circuit according to the difference of the operator scheme that will carry out, can connect different passive devices by voltage pin and switch pin.Referring to Fig. 3 A ~ Fig. 3 D, wherein, Fig. 3 A ~ Fig. 3 D is respectively the schematic diagram of the different execution mode of voltage transitions integrated circuit.
In figure 3 a, be connected with electric capacity C1 and input voltage VIN by voltage transitions integrated circuit 100, to make voltage transitions integrated circuit 100 for capacitance type voltage-boosting circuit.Wherein, voltage pin VP1 and VP2 receives input voltage VIN jointly, and switch pin SWP1 is coupled to the first end of electric capacity C1, and switch pin SWP2 is then coupled to second end of electric capacity C1.Thus, make interrupteur SW 1 ~ SW4 carry out the switching action of capacitance type voltage-boosting circuit by pattern setting signal MS setup control circuit 110, the voltage pin VP3 of voltage transitions integrated circuit 100 can produce boost output voltage VOUT.
In figure 3b, voltage pin VP1 and VP2 receives input voltage VIN jointly, and switch pin SWP1 and SWP2 is coupled to the first end of inductance L 1 jointly, and the second end of inductance L 1 is then coupled to input voltage VIN.Further, make interrupteur SW 1 ~ SW4 carry out the switching action of inductance type booster circuit by pattern setting signal MS setup control circuit 110, the voltage pin VP3 of voltage transitions integrated circuit 100 can produce boost output voltage VOUT.
In fig. 3 c, voltage pin VP1 receives input voltage VIN, and switch pin SWP1 and SWP2 is coupled to the first end of inductance L 1 jointly, and the second end of inductance L 1 is then coupled to input voltage VIN, and in addition, voltage pin VP2 is coupled to voltage pin VP3.Further, make interrupteur SW 1 ~ SW4 carry out the switching action of inductance type booster circuit by pattern setting signal MS setup control circuit 110, the voltage pin VP3 of voltage transitions integrated circuit 100 can produce boost output voltage VOUT.
In fig. 3d, switch pin SWP2 is coupled to the first end of inductance L 1, and the second end of inductance L 1 is then coupled to input voltage VIN, in addition, and the equal suspension joint of voltage pin VP1, VP3 and switch pin SWP1 (floating).Further, make interrupteur SW 2 and SW4 carry out the switching action of inductance type booster circuit by pattern setting signal MS setup control circuit 110, the voltage pin VP2 of voltage transitions integrated circuit 100 can produce boost output voltage VOUT.Subsidiary one carries, and the interrupteur SW 1 in present embodiment and SW3 permanent can remain on the state of disconnection.
In sum, voltage transitions integrated circuit of the present invention can connect different passive devices, the setting of matching model setting signal MS by fixing pin position, selects to carry out inductance type or capacitive boost action, and produces boost output voltage by this.Thus, do not need many pin positions to coordinate the selection action of boost mode, effectively save circuit cost.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (8)
1. a voltage transitions integrated circuit, is characterized in that, comprising:
One first switch, be coupled between one first voltage pin and one first switch pin, this first switch is controlled by a control signal to be turned on or off;
One second switch, be coupled between a second switch pin and one second voltage pin, this second switch is controlled by this control signal to be turned on or off;
One the 3rd switch, be coupled between this first switch pin and a tertiary voltage pin, the 3rd switch is controlled by this control signal to be turned on or off;
One the 4th switch, be coupled in this second switch pin and with reference between earth terminal, the 4th switch is controlled by this control signal to be turned on or off; And
One control circuit, couple this first, second, third and the 4th switch, receive a pattern setting signal to produce this control signal.
2. voltage transitions integrated circuit according to claim 1, is characterized in that, this pattern setting signal is inductance type booster circuit or for capacitance type voltage-boosting circuit in order to set this voltage transitions integrated circuit.
3. voltage transitions integrated circuit according to claim 2, it is characterized in that, this first voltage pin is in order to receive an input voltage, this second and third voltage pin produces a boost output voltage, this first and this second switch pin be coupled to the first end of an inductance, and the second termination of this inductance receives this input voltage, it is inductance type booster circuit that this pattern setting signal sets this voltage transitions integrated circuit.
4. voltage transitions integrated circuit according to claim 2, it is characterized in that, this first and this second voltage pin in order to receive an input voltage, this tertiary voltage pin produces a boost output voltage, this first and this second switch pin be coupled to the first end of an inductance, and the second termination of this inductance receives this input voltage, it is inductance type booster circuit that this pattern setting signal sets this voltage transitions integrated circuit.
5. voltage transitions integrated circuit according to claim 2, it is characterized in that, this second voltage pin produces a boost output voltage, this second switch pin is coupled to the first end of an inductance, and the second termination of this inductance receives this input voltage, this first and this tertiary voltage pin and this first switch pin suspension joint, it is inductance type booster circuit that this pattern setting signal sets this voltage transitions integrated circuit.
6. voltage transitions integrated circuit according to claim 2, it is characterized in that, this first and this second voltage pin in order to receive an input voltage, this tertiary voltage pin produces a boost output voltage, this the first switch pin is coupled to the first end of an electric capacity, and this second switch pin is coupled to the second end of this electric capacity, it is capacitance type voltage-boosting circuit that this pattern setting signal sets this voltage transitions integrated circuit.
7. voltage transitions integrated circuit according to claim 1, is characterized in that, also comprise a pattern setting pin, this pattern setting pin is coupled to this control circuit to receive this pattern setting signal.
8. voltage transitions integrated circuit according to claim 1, is characterized in that, also comprises a pattern setting signal generator, and this pattern setting signal generator is coupled to this control circuit to produce this pattern setting signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310418158.6A CN104467401A (en) | 2013-09-13 | 2013-09-13 | Voltage conversion integrated circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310418158.6A CN104467401A (en) | 2013-09-13 | 2013-09-13 | Voltage conversion integrated circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104467401A true CN104467401A (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310418158.6A Pending CN104467401A (en) | 2013-09-13 | 2013-09-13 | Voltage conversion integrated circuit |
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| Country | Link |
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| CN (1) | CN104467401A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110651380A (en) * | 2017-05-18 | 2020-01-03 | 日本光电工业株式会社 | Battery holder and electronic device |
-
2013
- 2013-09-13 CN CN201310418158.6A patent/CN104467401A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| LUIGI PISTONI: "创新体系结构-单片稳压器-提高电源能效和电池利用率", 《电源技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110651380A (en) * | 2017-05-18 | 2020-01-03 | 日本光电工业株式会社 | Battery holder and electronic device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |