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CA3060 bảng dữ liệu(PDF) 9 Page - Intersil Corporation |
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CA3060 bảng dữ liệu(HTML) 9 Page - Intersil Corporation |
9 / 12 page 3-9 Typical Applications Having determined the operating points of the CA3060 amplifiers, they can now function in the same manner as conventional op amps, and thus, are well suited for most op amp applications, including inverting and non-inverting amplifiers, integrators, differentiators, summing amplifiers etc. Tri-Level Comparator Tri-level comparator circuits are an ideal application for the CA3060 since it contains the requisite three amplifiers. A tri- level comparator has three adjustable limits. If either the upper lower limit is exceeded, the appropriate output is activated until the input signal returns to a selected intermediate limit. Tri-level comparators are particularly suited to many industrial control applications. Circuit Description Figure 23 shows the block diagram of a tri-level comparator using the CA3060. Two of the three amplifiers are used to compare the input signal with the upper limit and lower limit reference voltages. The third amplifier is used to compare the input signal with a selected value of intermediate limit reference voltage. By appropriate selection of resistance ratios this intermediate limit may be set to any voltage between the upper limit and lower limit values. The output of the upper limit and lower limit comparator sets the corre- sponding upper or lower limit flip-flop. The activated flip-flop retains its state until the third comparator (intermediate limit) in the CA3060 initiates a reset function, thereby indicating that the signal voltage has returned to the intermediate limit selected. The flip-flops employ two CA3086 transistor array ICs, with circuitry to provide separate “SET” and “POSITIVE OUTPUT” terminals. V+ = 6V LOAD 10K 4.7K 8 Q1 100 6 7 5.1K 5 1 3 2 4 150K 9 11 10 12 13 14 V+ = 6V LOAD 4.7K 10K 8 Q2 100 6 7 150K 5 1 3 2 4 5.1K 9 11 10 14 12 13 SATURATES WHEN LOWER LIMIT IS EXCEEDED LOWER LIMIT FLIP-FLOP UPPER LIMIT FLIP-FLOP CA3086 CA3086 SATURATES WHEN UPPER LIMIT IS EXCEEDED 9 SET WHEN LOWER LIMIT IS EXCEEDED 4 5 - + 1/3 CA3060 5.1K 5.1K - + 1/3 CA3060 RESET 7 WHEN INTERMEDIATE REFERENCE LIMIT IS EXCEEDED WHEN UPPER LIMIT IS EXCEEDED SET LOWER LIMIT REFERENCE EL R3 10K 11 12 INTERMEDIATE LIMIT REFERENCE VOLTAGE 5.1K R4 10K - + 1/3 CA3060 13 14 16 UPPER LIMIT REFERENCE VOLTAGE EU 5.1K 5.1K 13K V+ = 6V INPUT SIGNAL (ES) R2 1K 6 10 IABC IABC 15 IABC REGULATOR IN CA3060 2 8 25K 1 20K V- = -6V 3 V+ = 6V NOTES: 9. Items in dashed boxes are external to the CA3086. All resistance values are in ohms. VOLTAGE R1 1K EU - EL 2 10. E S E U E L – 2 -------------------- < Q 1(OFF), Q2(OFF) = E S E U Q 1(ON), Q2(OFF) = > E L E U Q 2(ON), Q1(OFF) = < FIGURE 22. TRI-LEVEL COMPARATOR CIRCUIT CA3060 |
Số phần tương tự - CA3060 |
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Mô tả tương tự - CA3060 |
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