SU1223353A1 - Multichannel transducer of single pulses - Google Patents

Abstract

The invention relates to a pulse technique and can be used in automation and computing devices, which include signal contacts. The purpose of the invention is to extend the functionality by generating an output signal that coincides in phase with the input signal. The device / contains RS-trigger 1, logical element (LE) OR-NOT 2, opening contacts 3, LE AND-NO 4, time specifying an RC circuit 5 consisting of a resistor 6 and a capacitor 7, synchronous triggers 8. In order to achieve the set goal, LE AND-NI 4 are entered into the device, the time specifies the circuit 5 and synchronous triggers 8. At the same time, the RC circuit 5 is designed so that the bounce pulses of the contacts 3 stop before the capacitor 7 is discharged through a resistor 6 to the logic level zero, 1 il. (L from go INP SO co 00 00

Description

The invention relates to a pulse technique and can be used in automation and computing devices, which include signal contacts.

The purpose of the invention is to enhance the functionality by generating an output signal coincident in phase with the input signal.

The drawing shows a schematic diagram of a multichannel sensor of single pulses.

The sensor contains an RS-flip-flop T, an element OR-NOT 2, the breaker contacts 3, the element IS-HE 4, the time specifying the RS-circuit 5, consisting of a resistor 6 and a capacitor 7, synchronous triggers 8.

The sensor works as follows.,

After turning on the power and with all the closed break contacts 3. the circuit is self-resetting. At the same time, at the direct outputs of synchronous triggers 8 and RS-flip-flop 1 there is a low potential, which every second sets the RS-circuit 5 to the R inputs of the synchronous triggers 8, allowing them to work.

When one of the contacts 3 opens, the first bounce pulse of the contacts switches the corresponding synchronous trigger 8 to a single state, at the output of which the leading edge of the output pulse is formed. Subsequent bounce pulses do not change the state of the trigger 8. A low voltage level from the inverted output of the synchronous trigger 8 arrives at the IS-NOT element 4 inverts its high voltage level to the S-input of the RS flip-flop 1, switching it to one state, and keeps in this state despite the fact that its R-input is affected by bounce pulses coming from an OR-NOT 2 element. The parameters of the time of the driving RC circuit 5 are selected so that by the time it reaches R- inputs of synchronous triggers level 8 logical units Inits bounce once normally closed contacts 3 terminatedIpI- Order 1723/58 Circulation 816 Subscription Branch P1P Patent, Uzhgorod, ul. Project, 4

tils. When RVBXO reaches the corresponding synchronous trigger 8 of the voltage level of the logical unit, it returns to the zero state, thus forming a falling edge at the forward output, the duration of which is determined by the constant time of the RG circuit 5.

When a certain contact 3 returns to the initial state, the first bounce pulse passes through the OR-NOT 2 element (since the remaining inputs of this element contain a low level of voltage), switches the RS-flip-flop 1 to the zero state. These impulses do not act on the corresponding synchronous trigger 8. This is prevented by the level of the logical unit at the R input of synchronous triggers 8. The time of the RC circuit 5 is calculated so that the bounce pulses of the closing contacts 3 stop

earlier than the capacitor 7 through the resistor 6 is discharged to the level of logical zero.

Claims (1)

Invention Formula Multichannel sensor single pulse containing RS-trigger, the element OR NOT, the inputs of which are connected through the break contacts to a source of logical zero, characterized in that, in order to expand the functional capabilities by generating an output signal of the same phase input-input, a multi-input element AND-NOT, time setting RC circuit and synchronous triggers, the C-inputs of which are connected to the corresponding break contacts, and the R-inputs are combined and connected to: the output time of the RC circuit, the input which is connected to the non-inverting output of the RC-flip-flop, the R-input of which is connected to the output element SH-NOT, and 5-input - with the output of the multi-input element AND-NOT, whose inputs are connected to the inverse outputs of synchronous triggers.