Pulse generation device with variable frequencies and duty ratio
A technology of pulse generation and duty cycle, applied in the direction of pulse generation, pulse technology, electric pulse generation, etc., can solve the problems of complex system structure, limited output pulse precision, long software development cycle, etc., and achieve simple parameter configuration and high precision , Conducive to the effect of system and program design
Active Publication Date: 2009-07-08
SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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Problems solved by technology
This traditional implementation method has complex system structure, long software development cycle and limited output pulse accuracy.
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[0021] The present invention will be further described in detail below in conjunction with the drawings.
[0022] Such as figure 1 As shown, the pulse generating device with variable frequency and duty cycle of the present invention is composed of two parts: pulse generation and duty cycle modulation.
[0023] Such as picture 2-1 , 2-2 As shown, the pulse generation part includes a first data storage unit REG1, a first pulse realization unit REG2, a low-level addition unit ADD1, a high-level addition unit ADD2, a first output level judgment unit, and a first calculation result selection unit; Its input ports include system clock signal SCLK (System Clock, SCLK for short), reset signal RST (Reset, RST for short), output enable signal OE (Output Enable, OE for short), frequency parameter FP (FrequencyParameter, FP for short), multiplier Parameter MP (Multiple Parameter, referred to as MP); the output port has a short pulse signal SP (Short Pulse, referred to as SP); the first data...
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A pulse generation device with variable frequency and duty ratio, including first to second data storage units, first to second pulse realization units, low level addition unit, high level addition unit, first to second output level The judging unit, the first to second calculation result selection unit and the high-level holding addition unit, the system clock and the reset signal are respectively connected to the first data storage unit, the second data storage unit, the first pulse realization unit and the second pulse realization unit, The output enable signal is connected to the first calculation result selection unit and the first output level judgment unit, the frequency parameter is connected to the low level addition unit, the high level addition unit and the high level maintenance addition unit, and the multiplication factor is connected to the first output level The judging unit and the high level adding unit, the duty ratio parameter is connected to the second output level judging unit, the output of the first pulse realizing unit is connected to the second output level judging unit, and the second pulse realizing unit is a pulse output. It has high pulse accuracy and variable frequency and duty cycle.
Description
Technical field [0001] The invention relates to a digital circuit design, in particular to a pulse generating device with variable frequency and duty cycle. The invention is used to generate pulses with variable frequency and duty cycle, and can be widely used in electromechanical control and other fields. Background technique [0002] At present, electromechanical control is increasingly widely used in automation fields such as industry, office and home. The control form has also been developed from simple start-stop control driven by mechanical power to precise control of its position, speed, acceleration and torque. The original "Motor drive" and "electric drive" have developed to a new stage of "motion control". [0003] The pulse generation part of motion control is currently mainly controlled by a single chip microcomputer or a computer. This traditional realization method has a complicated system structure, a long software development cycle and limited output pulse accurac...
Claims
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IPC IPC(8): H03K3/017
Inventor 杨志家刘鹏张志鹏刘铁锋马平全
Owner SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI