Collector single-ended or differential pulse signal receiving circuit compatible with 3.3-24V
A signal receiving and differential pulse technology, applied in the field of pulse signal receiving, can solve the problem of low pulse width and frequency of the receiving circuit, and achieve the effect of easy to understand and simple circuit principle.
Inactive Publication Date: 2022-08-09
深圳伺峰科技有限公司
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Problems solved by technology
[0003] As attached to the manual figure 2 , 3 As shown, in the current existing technology, most of the drivers in the current market still need to separate different receiving circuits and terminal heads to meet different voltage implementation standards and different types of input types and the pulse width of the receiving circuit. not high frequency
Method used
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Embodiment 1
[0035] figure 1 It is a schematic diagram of the circuit structure of the present invention, such as figure 1 The one shown is compatible with 3.3V~24V collector single-ended or differential pulse signal receiving circuit, including optocoupler circuit and pulse processing circuit, optocoupler circuit includes optocoupler U2, optocoupler U2 adopts high-speed optocoupler, and the specific model is FODM453R2V, the pulse processing circuit is connected to the input side of the optocoupler U2, and the pulse processing circuit is connected to the pulse positive terminal 3.3V~24V-PUL+ and the pulse negative terminal 3.3V~24V-PUL;
[0036] The pulse processing circuit includes a current-limiting circuit A2, a current-limiting circuit B4 and an access signal voltage switching circuit 3. The current-limiting circuit A2 and the current-limiting circuit B4 are electrically connected to each other, and the current-limiting circuit A2 and the current-limiting circuit B4 are electrically ...
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The invention relates to the technical field of pulse signal receiving, in particular to a 3.3 V-24V compatible collector single-end or differential pulse signal receiving circuit, which comprises an optocoupler circuit and a pulse processing circuit, the optocoupler circuit comprises an optocoupler, the pulse processing circuit is connected to the input side of the optocoupler, the pulse processing circuit is connected to a pulse positive end and a pulse negative end, and the optocoupler is connected to the input side of the optocoupler. The pulse processing circuit comprises a current limiting circuit A, a current limiting circuit B and an access signal voltage switching circuit, the current limiting circuit A and the current limiting circuit B are electrically connected with each other, and the current limiting circuit A and the current limiting circuit B are connected in series between the input side of the optocoupler and the pulse positive end. According to the invention, access can be realized by converting the compatible circuit, external port replacement is not needed, the circuit structure is simple, the circuit can be compatible with 3.3-24V collector single-end or differential signals, normal conduction of the optocoupler can be ensured no matter whether an external pulse is higher than 3.3 V or not, an external current-limiting resistor is not needed, and extra ports are not needed.
Description
technical field [0001] The invention relates to the technical field of pulse signal receiving, in particular to a single-ended or differential pulse signal receiving circuit compatible with 3.3V-24V collectors. Background technique [0002] At present, with the increasing demand for automation control, the requirements for corresponding automation control equipment are also getting higher and higher, with more and more functions, and at the same time, the requirements for compatibility are also higher and higher. The upper-layer control boards are also becoming more and more diversified, and different manufacturers implement different control signal voltage standards. Accordingly, it is proposed that the pulse + direction signal receiving end of the servo motor driver should not only solve the integrity of the signal reception, enhance the anti-interference ability, but also be compatible with the signal input types and voltage implementation standards of different manufactu...
Claims
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Login to View More IPC IPC(8): H03K17/10H03K17/081H03K17/78
CPCH03K17/10H03K17/081H03K17/78Y02T10/7072
Inventor 黄华林王远伦
Owner 深圳伺峰科技有限公司