Signal processing circuit
a signal processing and circuit technology, applied in the field of signal processing circuits, can solve the problems of large scale of ad (or da) conversion circuits and the delay of ratiometric output response, and achieve the effect of high responsiveness and high precision
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
Problems solved by technology
Method used
Image
Examples
embodiment 2
[0050] Although in the above-mentioned first embodiment, the pulse signal Vp is generated by using the pulse output circuit 21 alone, it may be generated by using a V / F conversion circuit 101A which comprises a pulse output circuit 21A, an integration circuit 20A and a hysteresis voltage output circuit 24A, as shown in FIG. 8.
[0051] Hereinafter, a second embodiment of the present invention will be described in detail while referring to the accompanying drawings.
[0052]FIG. 8 is a block diagram that illustrate a signal processing circuit according to the second embodiment of the present invention, wherein the parts or components same as those described above (see FIG. 1) are identified by the same symbols or by the same symbols with “A” affixed to their ends, while omitting a detailed explanation thereof. In FIG. 8, the V / F conversion circuit 101A that generates the pulse signal Vp includes the integration circuit 20A (first integrating part), the pulse output circuit 21A and the hy...
embodiment 3
[0103] Though in the above-mentioned second embodiment, no mention is made to the concrete examples of the respective voltages V1 through V3, the first voltage V1 may be set as a fixed voltage Vcom, the second voltage V2 may be set as the sensor reference voltage Vref, and the third voltage V3 may be set as the flow rate signal Vm, as shown in FIG. 11.
[0104] Hereinafter, a third embodiment of the present invention will be described in detail while referring to FIG. 11. FIG. 11 is a block diagram that shows a signal processing circuit according to the third embodiment of the present invention, wherein the parts or components same as those described above (see FIG. 8) are identified by the same symbols or by the same symbols with “B” affixed to their ends, while omitting a detailed explanation thereof.
[0105] In FIG. 11, a fixed voltage Vcom is input to an integration circuit 20B in a V / F conversion circuit 101B, and the integration circuit 20B integrates the fixed voltage Vcom to ge...
embodiment 4
[0111] Although in the above-mentioned third embodiment, the second and third voltages V2 and V3 are made to correspond to the sensor reference voltage Vref and the flow rate signal Vm, respectively, the respective input signals may be exchanged with one another, as shown in FIG. 12, so that the second voltage V2 is set as the flow rate signal Vm, and the third voltage V3 is set as the sensor reference voltage Vref.
[0112] Hereinafter, a fourth embodiment of the present invention will be described in detail while referring to FIG. 12. FIG. 12 is a block diagram that shows a signal processing circuit according to the fourth embodiment of the present invention, wherein the parts or components same as those described above (see FIG. 11) are identified by the same symbols or by the same symbols with “C” affixed to their ends, while omitting a detailed explanation thereof.
[0113] In FIG. 12, a flow rate signal Vm is input to a hysteresis voltage output circuit 24C in a V / F conversion cir...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More