DE3210364A1 - Electronic counter in 1-of-10 code - Google Patents

Abstract

Published without abstract

Description

Electronic counter in 1-out-of-1 0 code

The subject of the invention is the formation of the electronic counter according to the main patent application as a flip-flop-mono-flop counter of the simplest design. This simplification is made possible by special input postures via which the relevant flip-flop input not only with 3 potential, but also with L potential can be controlled.

The electronic up counter or a decade of this counter is shown in FIG. The electronic backwards counter or a decade this counter is shown in FIG. The electronic up / down counter Type A, or a decade of this counter, is shown in FIG. The electronic Up / down counter type B, or a decade of this counter, is shown in FIG shown.

The detail F from FIG. 1 is shown in component symbols in FIG and the detail F from FIG. 2 in FIG. 6. The detail F from FIG. 3 is in FIG and the detail F of Figure 4 in Figure 8. In Figure 9 is for comparison a normally formed decade of a similar modulo 10 up counter with normal flip-flop control shown.

There is a decade of the electronic up counter (Figure 1) of 5 flip-flopps 1 to 5 and 5 special mono-flopps 11 to 15 and 5 special flip-flop input circuits 21 to 25, which not only act as an AND circuit, but also with L-potential pre-control cause an L-potential control. These special flip-flop input circuits 21 to 25 cause an H-potential control with H-potential pre-control of the relevant flip-flop input and, with L-potential pre-control, an L-potential control of the relevant flip-flop input. On other parts be; stands this decade from 10 display and circuits 41 to 50 and the decade carry and circuit 51. The display outputs B and C are with the associated numerical values (0 to 9) marked. The counting pulse input has the designation Z and the decade carry output the designation U. The total reset Leiturlg has the designation S and their The decade branch is called t.

There is a decade of the electronic down counter (Figure 2) also from 5 flip-flopps 1 to 5 and 5 special mono-flopps 11 to 15 and 5 special flip-flop input circuits 21 to 25 for H-potential control and L-potential control. On other parts this decade consists of 10 display and circuits 41 to 50 and the decade 2 carry AND circuit 51 and the setting circuit 53, which is shown in component symbols. The display outputs B and C are also marked with the associated numerical values (digits 0 to 9), likewise the control inputs A (with the numbers 1 to 9). The counting pulse input has also the drawing Z and the decade carry output the designation U. The total reset line also has the designation S and its decade branch the term t.

One decade of the electronic up / down counter Type A (Fig 3) also consists of 5 flip-flopps 1 to 5 and 5 special mono-flopps 11 to 15 and 5 double special flip-flop input circuits 21-26 to 25-30. These too Special input circuits 21 to 30 cause pre-activation with H potential an H-potential control of the relevant flip-flop input and an L-potential pre-control an L-potential control of the relevant flip-flopp input. On more This decade also consists of 10 display and control keys 41 to 50 and the Decade carry circuit 60, consisting of AND circuits 61 and 62 and the OR circuit 63 and AND circuit 64.

In the up-counting direction, the counting pulses are sent from the upper input the AND circuit 65 pre-controlled and in the downward counting direction from the upper input the AND circuit 66.

The display outputs B and C are also with the associated numerical values (Digits 0 to 9). The number impulse - Has entrance too the designation Z and the decade carry output the designation U. The overall reset line also has the designation S and its decade branch the designation t. The setting Up counting is done by applying an H potential to the control line V, the control line R having L potential via a negating circuit. The setting downward counting is done by applying B potential to the control line V, the control line R being H potential via the already mentioned negating circuit Has.

One decade of the electronic forward-backward counter type B (fig 4) consists of the same parts as a decade of the electronic up / down counter Type A (Figure 3). The decade shown in Figure 4 shows in comparison with the Decade shown in Figure 3 has the difference that the line x on the left-sided Output of the mono-flop 15 is connected and that of the special input circuits 26 to 30 the right-hand inputs of flip-flopps 1 to 5 can be controlled.

In comparison with the double flip-flop counters, the same circuit principle (P ..................) the difference is that the counting pulses are not random may be long, as with double flip-flop counters, but even shorter than that relatively short delay time of the special mono-flopps.

In Figures 5 to d, the details F of Figures 1 to 4 are in component symbols shown. FIG. 5 shows detail F from FIG. 1 and FIG. 6 that Detail F of Figure 2. Figure 7 shows the detail F of Figure 3 and the figure 8 shows the detail F from FIG. 4. In these FIGS. 5 to 8, those lines which are connected to the operating current supply line (operating voltage supply line) are, the designation m and those lines which are connected to the neutral line are, the designation n. The special input circuits of the flip-flopps are formed by transistors or field effect transistors or channel transistors, which are marked with the same number as the circuit symbols in the drawings 1 to 4.

The normal up-counting decade shown in Figure 9 has only normal ones And circuits.

The normal forward counting decade shown in FIG. 10 has in comparison with the normal forward counting decade shown in FIG. 9, only one pulse line.

The total reset of the flip-flopps and thus also the associated ones Special mono-flopps can also be done by making the bases of the left-sided Flip-flop transistors are H-potential-controlled. When counting backwards takes place in this case, the decade is set to the relevant minute digit by means of H-potential pulses at the base of the right-hand flip-flop transistors.

L e r s e i t e

Claims (5)

Claims 1) Electronic modulo 10 up counters, which consist of consist of one or two or more decades and their decades each consist of 5 simple ones Flip-flopps consist of an additional delay circuit or a special mono-flop are combined and in their other switching position twice in succession per desade cycle tilt, characterized in that the flip-lops via special input circuits are controlled, the H-potential control with H-potential pre-control of the relevant flip-flop input when the counting pulse at the other input arrives and the L-potential control of the L-potential pre-control cause the relevant flip-ilop input if the counting pulse at the other input arrives. 2) Electronic modulo 10 reverse counters, consisting of one or two or several decades and their decades consist of 5 simple flip-flops each exist with an additional delay circuit or a special mono-flopp are combined and in their other switch position twice in succession per decade cycle tilt, characterized in that the flip-flopps have special input circuits are controlled, the H-potential control with H-potential pre-control of the relevant flip-flop input when the counting pulse at the other input arrives and the L-potential control of the L-potential pre-control cause the relevant flip-flop input if the counting pulse at the other input arrives. 3) Electronic £ odulo-10 forward / backward counters consisting of a or consist of two or more decades and their decades each consist of 5 simple flip-flopps exist with an additional delay circuit or a special mono-flopp are combined and in their other switching position twice in succession per decade cycle flip, characterized in that the Flipp ~ Blopps via special Singangs circuits are controlled, the H-potential-on control with H-potential pre-control of the relevant flip-flop input when the counting pulse at the other input arrives and the L-potential control of the L-potential pre-control cause the relevant flip-flop input if the counting pulse at the other input arrives. 4) Electronic counter according to claim 1 to 3, characterized in that that in the versions D the flip-flopps with an additional delay circuit are combined consisting of a negate delay circuit and a negate circuit consists. 5) Electronic counter according to claim 1 to 3, characterized in that that in the versions E, the flip-flopps are combined with 2 delay circuits are.