CN205068210U - Signal generation device - Google Patents
Signal generation device Download PDFInfo
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- CN205068210U CN205068210U CN201520821995.8U CN201520821995U CN205068210U CN 205068210 U CN205068210 U CN 205068210U CN 201520821995 U CN201520821995 U CN 201520821995U CN 205068210 U CN205068210 U CN 205068210U
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Abstract
The utility model provides a signal generation device, includes two signal generator and two switches that have electric coupling respectively with this signal generator. Two signal generator work in same voltage range, and establish ties each other. Two switches are established ties with two signal generator respectively for select output voltage's signal generator. The third, fourth and the 5th switch that have electrical connection between these two switches in addition to it works in same voltage range with signal generator to go up the switch.
Description
[technical field]
The present invention relates to a kind of signal generation apparatus, particularly a kind of signal generation device that can export the voltage of twice operating voltage range.
[background technology]
General signal generator all can have maximum withstand voltage restriction, such as, signal generator manufactured by+5V voltage process processing procedure, and maximum of its operating voltage that can bear (referring to the cross-pressure between the power input of signal generator and earth terminal) is to 5V.Therefore, the voltage signal amplitude exported to allow signal generator is more than 5V, such as export the voltage signal of peak swing 10V, the element having higher voltage endurance capability can only be used, in signal generator, such as use the element of withstand voltage 32V to realize the output of 10V voltage signal, or directly change the manufacturing process of signal generator, but these ways not only increase the circuit area of signal generator, also increase manufacturing cost.
[summary of the invention]
Therefore, the object of the invention is to provide one to operate in one times of operating voltage range, but the voltage signal produced can reach the signal generation apparatus of twice operating voltage range.
The invention provides a kind of signal generation apparatus, comprising: the first signal generator, there is a power end, earth terminal and output terminal, and the cross-pressure in operating voltage range can be born between this power end and this earth terminal; Secondary signal generator, has a power end, earth terminal and output terminal, can bear the cross-pressure in this operating voltage range between this power end and this earth terminal, and the earth terminal electric coupling of this power end and the first signal generator; Two the first switches, the mutual electric coupling of its first end, and the output terminal electric coupling of the second end of one of them the first switch and the first signal generator; Two second switches, the mutual electric coupling of its first end, and the output terminal electric coupling of the second end of one of them second switch and secondary signal generator, and the second end electric coupling of wherein the second end of another second switch and two the first switches wherein another the first switch; 3rd switch, the earth terminal electric coupling of its first end and the first signal generator, the second end electric coupling of the second end and two the first switches wherein another the first switch; 4th switch, the first end electric coupling of its first end and two the first switches, and the first end electric coupling of the second end and the 3rd switch; And the 5th switch, the first end electric coupling of its first end and two second switches, and the first end electric coupling of the second end and the 3rd switch; Wherein the first switch, second switch, the 3rd switch, the 4th switch and the 5th switch can bear the cross-pressure in this operating voltage range.
In one embodiment of this invention, when the power end of the first signal generator is transfused to the positive operating voltage of twice, and its earth terminal is transfused to one times of positive operating voltage, and during the earth terminal ground connection of secondary signal generator, make two the first switches and the 5th switch conduction, then the output terminal of the first signal generator can by the voltage signal of two the first switched voltage output scopes between positive this operating voltage to one times this positive operating voltage of twice, and make the cross-pressure of second switch, the 3rd switch and the 4th switch maintain in this operating voltage range; And make two second switches and the 4th switch conduction, then secondary signal generator output terminal can by two second switch output voltage ranges between positive operating voltage to the voltage signal of ground connection, and the cross-pressure of the first switch, the 3rd switch and the 5th switch is maintained in this operating voltage range.
In one embodiment of this invention, when the power end of the first signal generator is transfused to positive operating voltage, and its earth terminal ground connection, and the earth terminal of secondary signal generator is when being transfused to negative operating voltage, make two the first switches and the 5th switch conduction, then the first signal generator output terminal can by two the first switched voltage output scopes between positive operating voltage to a voltage signal of ground connection, and make the cross-pressure of second switch, the 3rd switch and the 4th switch maintain in this operating voltage range; And make two second switches and the 4th switch conduction, then the output terminal of secondary signal generator can by two second switch output voltage ranges between the voltage signal being grounded to this negative operating voltage, and make the cross-pressure of the first switch, the 3rd switch and the 5th switch maintain in this operating voltage range.
In one embodiment of this invention, when the power end of the first signal generator is transfused to the positive operating voltage of twice, and its earth terminal is transfused to one times of positive operating voltage, and during the earth terminal ground connection of secondary signal generator, make the 3rd switch conduction, then can export the voltage signal with positive operating voltage by the 3rd switch.
In one embodiment of this invention, when the power end of the first signal generator is transfused to positive operating voltage, and its earth terminal ground connection, and when the earth terminal of secondary signal generator is transfused to negative operating voltage, make the 3rd switch conduction, then can be exported the voltage signal of ground connection by the 3rd switch.
In addition, in one embodiment of this invention, this signal generation apparatus also comprises a controller, itself and the first switch, second switch, the 3rd switch, the 4th switch and the 5th switch electric coupling, whether to control the first switch, second switch, the 3rd switch, the 4th switch and the 5th switch conduction.
The present invention arranges in pairs or groups by the first signal generator be operated in one times of operating voltage range and secondary signal generator the action of the first switch, second switch, the 3rd switch, the 4th switch and the 5th switch, achieving signal generation apparatus only need be operated in one times of operating voltage range, the voltage signal of output can be made to reach twice operating voltage range, really reach effect of the present invention and object.
[accompanying drawing explanation]
The present invention other feature and effect, the embodiment with reference to legend clearly presents, wherein:
Fig. 1 shows the circuit structure of an embodiment of signal generation apparatus of the present invention;
When Fig. 2 illustrates two the first switches and the 5th switch conduction of the present embodiment, the voltage range of the voltage signal of output;
When Fig. 3 illustrates two second switches and the 4th switch conduction of the present embodiment, the voltage range of the voltage signal of output;
When Fig. 4 illustrates the 3rd switch conduction of the present embodiment, the voltage range of the voltage signal of output.
[symbol description]
1 first signal generator
2 secondary signal generators
3 controllers
11,21 power ends
12,22 earth terminals
13,23 output terminals
SW1 first switch
SW2 second switch
SW3 the 3rd switch
SW4 the 4th switch
SW5 the 5th switch
P1 first end
P2 second end
[embodiment]
Shown in Figure 1, one embodiment of signal generation apparatus of the present invention mainly comprises the first signal generator 1, secondary signal generator 2, two the first interrupteur SW 1, two second switch SW2, the 3rd interrupteur SW 3, the 4th interrupteur SW 4, the 5th interrupteur SW 5, and one controls the first interrupteur SW 1, second switch SW2, the 3rd interrupteur SW 3, the 4th interrupteur SW 4 and the 5th interrupteur SW 5 conducting whether controller 3.Wherein the first signal generator 1 has power end 11, earth terminal 12 and output terminal 13, and can bear between power end 11 and earth terminal 12 at an operating voltage VDDA, such as, cross-pressure within the scope of 5V, that is first the maximum withstand voltage of signal generator 1 be plus or minus operating voltage VDDA, such as+5V or-5V.
Secondary signal generator 2 is identical with the first signal generator 1, also there is power end 21, earth terminal 22 and output terminal 23, wherein can bear the cross-pressure within the scope of operating voltage VDDA between power end 21 and earth terminal 22, that is the maximum withstand voltage of secondary signal generator 2 is operating voltage VDDA, and earth terminal 12 electric coupling of power end 21 and the first signal generator 1.
First interrupteur SW 1, second switch SW2, the 3rd interrupteur SW 3, the 4th interrupteur SW 4 and the 5th interrupteur SW 5 all have first end P1 and the second end P2, the wherein mutual electric coupling of first end P1 of two the first interrupteur SW 1, the second end P2 of one of them the first interrupteur SW 1 and output terminal 13 electric coupling of the first signal generator 1; The mutual electric coupling of first end P1 of two second switch SW2, the second end P2 of one of them second switch SW2 and output terminal 23 electric coupling of secondary signal generator 2, and the second end P2 electric coupling of the wherein second end P2 of another second switch SW2 and these two the first interrupteur SW 1 wherein another the first interrupteur SW 1; The first end P1 of the 3rd interrupteur SW 3 and earth terminal 12 electric coupling of the first signal generator 1, the second end P2 electric coupling of its second end P2 and two the first interrupteur SW 1 wherein another the first interrupteur SW 1; The first end P1 of the 4th interrupteur SW 4 and the first end P1 electric coupling of these two the first interrupteur SW 1, and the first end P1 electric coupling of its second end P2 and the 3rd interrupteur SW 3; The first end P1 of the 5th interrupteur SW 5 and the first end P1 electric coupling of these two second switch SW2, and the first end P1 electric coupling of its second end P2 and the 3rd interrupteur SW 3; And the first interrupteur SW 1, second switch SW2, the 3rd interrupteur SW 3, the 4th interrupteur SW 4 and the 5th interrupteur SW 5 can bear the cross-pressure within the scope of operating voltage VDDA, that is its maximum withstand voltage be operating voltage VDDA.
Therefore, as shown in Figure 2, when the power end 11 of the first signal generator 1 inputs the positive operating voltage 2xVDDA of twice, and its earth terminal 12 inputs the positive operating voltage VDDA of a times, and during earth terminal 22 ground connection of secondary signal generator 2, first signal generator 1 can produce the voltage signal of voltage range between the positive operating voltage VDDA of positive operating voltage 2xVDDA to a times of twice, now, if controller 3 controls these two the first interrupteur SW 1 conductings, the voltage signal (voltage range is between 2xVDDA to VDDA) that then the first signal generator 1 produces can be exported by two the first interrupteur SW 1, simultaneously, controller 3 controls the 5th interrupteur SW 5 conducting, to guarantee second switch SW2, the cross-pressure at the 3rd interrupteur SW 3 and the 4th interrupteur SW 4 two ends all maintains within the scope of operating voltage VDDA, and unlikelyly exceed its maximum withstand voltage upper limit.
In addition, as shown in Figure 3, if when controller 3 controls these two second switch SW2 and the 4th interrupteur SW 4 conducting, output terminal 23 energy of secondary signal generator 2 by the voltage signal of two second switch SW2 output voltage ranges between positive operating voltage VDDA to ground connection GND, and make the cross-pressure of these first interrupteur SW 1, the 3rd interrupteur SW 3 and the 5th interrupteur SW 5 all maintain in operating voltage VDDA (namely maximum withstand voltage) scope.
And when signal generation apparatus only needs output one times of operating voltage VDDA, then as shown in Figure 4, controller 3 need control the 3rd interrupteur SW 3 conducting, and the power end 21 of secondary signal generator 2 can export the voltage signal with one times of operating voltage VDDA via the 3rd interrupteur SW 3.
It is worth mentioning that, the voltage signal that the present embodiment exports can be square wave, sine or the random waveform such as cosine wave (CW), triangular wave, concrete relevant with first and second signal generator output waveform.
Certainly, the present embodiment also can change the voltage range of its output voltage signal by the different operating voltage VDDA of input.As shown in Figure 2, if the power end 11 of the first signal generator 1 is transfused to positive operating voltage VDDA, its earth terminal 12 ground connection GND, and the earth terminal 22 of secondary signal generator 2 is transfused to negative operating voltage-VDDA, then when controller 3 controls these two the first interrupteur SW 1 and the 5th interrupteur SW 5 conducting, the voltage range of the voltage signal then exported by these two the first interrupteur SW 1 is by between positive operating voltage VDDA to ground connection GND, and the cross-pressure of second switch SW2, the 3rd interrupteur SW 3 and the 4th interrupteur SW 4 also can maintain within the scope of operating voltage VDDA simultaneously.
Or, as shown in Figure 3, when controller 3 controls two second switch SW2 and the 4th interrupteur SW 4 conducting, then by the voltage range of two second switch SW2 output voltage signals by between ground connection GND to negative operating voltage-VDDA, the cross-pressure of the first interrupteur SW 1, the 3rd interrupteur SW 3 and the 5th interrupteur SW 5 all can maintain within the scope of operating voltage VDDA simultaneously.
And when signal generation apparatus only needs the signal exporting ground connection GND, then as shown in Figure 4, controller 3 controls the 3rd interrupteur SW 3 conducting, and the earth terminal 12 of the first signal generator 1 can export the voltage signal of ground connection GND via the 3rd interrupteur SW 3.
In sum, above-described embodiment is by the first signal generator 1 be operated within the scope of one times of operating voltage VDDA and secondary signal generator 2, and the action of the first interrupteur SW 1 of arranging in pairs or groups, second switch SW2, the 3rd interrupteur SW 3, the 4th interrupteur SW 4 and the 5th interrupteur SW 5, achieving signal generation apparatus only need be operated within the scope of one times of operating voltage VDDA, output voltage signal just can be made to reach twice operating voltage 2xVDDA scope (namely the scope of voltage signal can from 2xVDDA ~ GND or VDDA ~-VDDA), really reach effect of the present invention and object.
The above, be only present pre-ferred embodiments, can not limit the scope of the present invention with this, namely generally does simple equivalence change and amendment according to the present patent application the scope of the claims and patent specification content, still belong in patent covering scope of the present invention.
Claims (6)
1. a signal generation apparatus, comprising:
First signal generator, has power end, earth terminal and output terminal, and can bear the cross-pressure in operating voltage range between power end and earth terminal;
Secondary signal generator, has power end, earth terminal and output terminal, can bear the cross-pressure in this operating voltage range between power end and earth terminal, and the earth terminal electric coupling of power end and the first signal generator;
Two the first switches, the mutual electric coupling of its first end, and the output terminal electric coupling of the second end of one of them the first switch and the first signal generator;
Two second switches, the mutual electric coupling of its first end, and the output terminal electric coupling of the second end of one of them second switch and secondary signal generator, and the second end electric coupling of wherein the second end of another second switch and two the first switches wherein another the first switch;
3rd switch, the earth terminal electric coupling of its first end and the first signal generator, the second end electric coupling of its second end and two the first switches wherein another the first switch;
4th switch, the first end electric coupling of its first end and two the first switches, and the first end electric coupling of its second end and the 3rd switch;
5th switch, the first end electric coupling of its first end and two second switches, and the first end electric coupling of its second end and the 3rd switch; Wherein the first switch, second switch, the 3rd switch, the 4th switch and the 5th switch can bear the cross-pressure in this operating voltage range.
2. signal generation apparatus as claimed in claim 1, wherein when the power end of the first signal generator is transfused to the positive operating voltage of twice, and its earth terminal is transfused to one times of positive operating voltage, and during the earth terminal ground connection of secondary signal generator, make two the first switches and the 5th switch conduction, then the output terminal of the first signal generator can by the voltage signal of two the first switched voltage output scopes between positive this operating voltage to one times this positive operating voltage of twice, and make the cross-pressure of second switch, the 3rd switch and the 4th switch maintain in this operating voltage range; And make two second switches and the 4th switch conduction, then this secondary signal generator output terminal can by two second switch output voltage ranges between this positive operating voltage to this voltage signal of ground connection, and the cross-pressure of the first switch, the 3rd switch and the 5th switch is maintained in this operating voltage range.
3. signal generation apparatus as claimed in claim 1, wherein when the power end of the first signal generator is transfused to positive operating voltage, and its earth terminal ground connection, and the earth terminal of this secondary signal generator is when being transfused to negative operating voltage, make two the first switches and the 5th switch conduction, then the first signal generator output terminal can by two the first switched voltage output scopes between this positive operating voltage to the voltage signal of ground connection, and make the cross-pressure of second switch, the 3rd switch and the 4th switch maintain in this operating voltage range; And make two second switches and the 4th switch conduction, then the output terminal of secondary signal generator can by two second switch output voltage ranges between the voltage signal being grounded to this negative operating voltage, and make the cross-pressure of the first switch, the 3rd switch and the 5th switch maintain in this operating voltage range.
4. signal generation apparatus as claimed in claim 1, wherein when the power end of the first signal generator is transfused to the positive operating voltage of twice, and its earth terminal is transfused to one times of positive operating voltage, and during the earth terminal ground connection of secondary signal generator, make the 3rd switch conduction, then can export the voltage signal with this positive operating voltage by the 3rd switch.
5. signal generation apparatus as claimed in claim 1, wherein when the power end of the first signal generator is transfused to positive operating voltage, and its earth terminal ground connection, and the earth terminal of secondary signal generator is when being transfused to negative operating voltage, make the 3rd switch conduction, then can be exported the voltage signal of ground connection by the 3rd switch.
6. as the signal generation apparatus of claim 1 to 5 according to any one of it, also comprise a controller, whether itself and the first switch, second switch, the 3rd switch, the 4th switch and the 5th switch electric coupling, control the first switch, second switch, the 3rd switch, the 4th switch and the 5th switch conduction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520821995.8U CN205068210U (en) | 2015-10-23 | 2015-10-23 | Signal generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520821995.8U CN205068210U (en) | 2015-10-23 | 2015-10-23 | Signal generation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205068210U true CN205068210U (en) | 2016-03-02 |
Family
ID=55394742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520821995.8U Active CN205068210U (en) | 2015-10-23 | 2015-10-23 | Signal generation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205068210U (en) |
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2015
- 2015-10-23 CN CN201520821995.8U patent/CN205068210U/en active Active
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 100088 Beijing city Haidian District North Third Ring Road No. 31, No. 4 Building 13 layer (Taisite building) Patentee after: BEIJING CHIPONE NORTH TECHNOLOGY CO., LTD. Address before: 100088 Beijing city Haidian District North Third Ring Road No. 31, No. 4 Building 13 layer (Taisite building) Patentee before: Beijing Jichuang Northern Technology Co.,Ltd. |