CN205725685U - Periodic pulse signal based on programmable logic chip detects protection module automatically - Google Patents
Periodic pulse signal based on programmable logic chip detects protection module automatically Download PDFInfo
- Publication number
- CN205725685U CN205725685U CN201620558823.0U CN201620558823U CN205725685U CN 205725685 U CN205725685 U CN 205725685U CN 201620558823 U CN201620558823 U CN 201620558823U CN 205725685 U CN205725685 U CN 205725685U
- Authority
- CN
- China
- Prior art keywords
- pulse
- signal
- depositor
- logic chip
- programmable logic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Manipulation Of Pulses (AREA)
Abstract
This utility model relates to a kind of periodic pulse signal based on programmable logic chip and automatically detects protection module; including changer, enumerator, pulse period depositor, pulse width register, comparator, input signal has sampling clock, detected pulse, depositor reset signal: changer is that the tested periodic pulse signal of input is converted to narrow pulse signal Tong Bu with tested periodic pulse signal, that width is equal to the clock cycle;Enumerator is the counting carrying out detected pulse under sampling clock triggers;Pulse period depositor preserves the pulse cycle value of tested periodic pulse signal.Pulse width register preserves the pulse width measuring value of tested periodic pulse signal.Comparator is pulse period depositor, the data of pulse width register to be compared with pulse period, the pulse width typical data of setting in real time; when deviation is beyond set point; output control signal turns off the pumping signal input of radio-frequency devices, protection radio-frequency devices and rear class device.
Description
Technical field
This utility model relates to a kind of protection module of detection automatically, particularly relates to a kind of week based on programmable logic chip
Phase pulse signal detects protection module automatically.
Background technology
When radio-frequency devices (such as transmitter, power amplifier) works, the rf excitation signal of input is loaded with modulation arteries and veins
When rushing signal, modulated pulse signal is generally periodically pulsing signal, and the parameter such as pulse period and pulse width is radio frequency
The representative value of device work, time as bigger in parameter actual value and representative value deviation, can cause radio-frequency devices or the damage of rear class device
Bad.The initial stage occur in pulse parameter and representative value deviation, detection is abnormal and automatic output control signal trigger protection is ten in time
Divide necessity.
Utility model content
Provide a kind of when radio-frequency devices load-modulate pulse signal works for problem above this utility model, can
Automatically to detect the parameter of modulated pulse signal, when pulse parameter is beyond application indexes, can trigger by automatic output control signal
The periodic pulse signal automatic detecting protector of protection.
Techniques below scheme is taken: a kind of based on programmable logic chip in order to solve problem above this utility model
Periodic pulse signal detects protection module automatically, it is characterised in that: include changer, enumerator, pulse period depositor, pulse
Width register, comparator,
Input, the operation level that signal level is programmable logic chip of output, input signal has sampling clock, tested
Survey pulse, depositor reset signal: sampling clock is produced by clock circuit;The tested cycle arteries and veins that detected pulse is an externally input
Rush signal;Depositor reset signal is produced by peripheral circuit-reset circuit;Output signal has control signal: control signal is for penetrating
Frequently the pumping signal input of device enables and controls;
Changer is the tested periodic pulse signal of input to be converted to, width Tong Bu with tested periodic pulse signal be equal to
The narrow pulse signal of clock cycle, for counter reset signal, interval in reset signal burst pulse, counter O reset;
Enumerator is the counting carrying out detected pulse under sampling clock triggers;
Pulse period depositor preserves the pulse cycle value of tested periodic pulse signal.When module powers up, pulse week
Phase depositor reset signal produces, and makes pulse period depositor reset.Trigger when detected rising edge of a pulse, make the pulse period
Depositor is equal to Counter Value, and now pulse period register value is latched, until brush when being next time detected rising edge of a pulse
New data.
Pulse width register preserves the pulse width measuring value of tested periodic pulse signal.When module powers up, depositor
Reset signal produces, and makes pulse width register reset.Trigger when detected pulse falling edge, make pulse width register etc.
In Counter Value, now pulse width register value is latched, until refresh data when being next time detected pulse falling edge.
Comparator is in real time by pulse period depositor, data and the pulse period of setting, the arteries and veins of pulse width register
Rushing width typical data to compare, when deviation is beyond set point, output control signal turns off the excitation letter of radio-frequency devices
Number input, protection radio-frequency devices and rear class device.
Programmable logic chip uses the CPLD chip of LATTICE company, and model is LC4256V-75T144I.
Clock circuit uses HXO-36B active crystal, and frequency is 10MHz
Described peripheral circuit-reset circuit includes that resistance R, electric capacity C, resistance R connect with electric capacity C, the other end of resistance R
Meet another termination GND of VCC, electric capacity C.
The periodic pulse signal based on programmable logic chip realization that this utility model provides detects protection module automatically,
When radio-frequency devices load-modulate pulse signal works, can automatically detect the parameter of modulated pulse signal, work as pulse parameter
During beyond application indexes, can automatic output control signal trigger protection.
Accompanying drawing explanation
Fig. 1 is this utility model system principle diagram.
Fig. 2 is peripheral circuit in this utility model-reset circuit schematic diagram.
Detailed description of the invention
The utility model is described in more detail below in conjunction with the accompanying drawings.
Automatically examine as it is shown in figure 1, this utility model provides a kind of periodic pulse signal based on programmable logic chip
Survey protection module, including changer, enumerator, pulse period depositor, pulse width register, comparator,
Input, the operation level that signal level is programmable logic chip of output, input signal has sampling clock, tested
Survey pulse, depositor reset signal: sampling clock is produced by clock circuit;The tested cycle arteries and veins that detected pulse is an externally input
Rush signal;Depositor reset signal is produced by peripheral circuit-reset circuit;Output signal has control signal: control signal is for penetrating
Frequently the pumping signal input of device enables and controls;
Changer is the tested periodic pulse signal of input to be converted to, width Tong Bu with tested periodic pulse signal be equal to
The narrow pulse signal of clock cycle, for counter reset signal, interval in reset signal burst pulse, counter O reset;
Enumerator is the counting carrying out detected pulse under sampling clock triggers;
Pulse period depositor preserves the pulse cycle value of tested periodic pulse signal.When module powers up, pulse week
Phase depositor reset signal produces, and makes pulse period depositor reset.Trigger when detected rising edge of a pulse, make the pulse period
Depositor is equal to Counter Value, and now pulse period register value is latched, until brush when being next time detected rising edge of a pulse
New data.
Pulse width register preserves the pulse width measuring value of tested periodic pulse signal.When module powers up, depositor
Reset signal produces, and makes pulse width register reset.Trigger when detected pulse falling edge, make pulse width register etc.
In Counter Value, now pulse width register value is latched, until refresh data when being next time detected pulse falling edge.
Comparator is in real time by pulse period depositor, data and the pulse period of setting, the arteries and veins of pulse width register
Rushing width typical data to compare, when deviation is beyond set point, output control signal turns off the excitation letter of radio-frequency devices
Number input, protection radio-frequency devices and rear class device.
Programmable logic chip uses the CPLD chip of LATTICE company, and model is LC4256V-75T144I.
Clock circuit uses HXO-36B active crystal, and frequency is 10MHz
As in figure 2 it is shown, described peripheral circuit-reset circuit includes that resistance R, electric capacity C, resistance R connect with electric capacity C, electricity
Another termination GND of another termination VCC, electric capacity C of resistance R.Indicating resistance R in figure is 100k Ω, and electric capacity C is 0.1uF, can add
Produce the low level of 10mS during electricity, be high level when stablizing, the demand of depositor reset signal can be met.
The foregoing is only preferred embodiment of the present utility model, be not restricted to this utility model, for ability
For the technical staff in territory, this utility model can have various modifications and variations.All spirit of the present utility model and principle it
In, any modification, equivalent substitution and improvement etc. made, within should be included in right of the present utility model.
Claims (5)
1. a periodic pulse signal based on programmable logic chip detects protection module automatically, it is characterised in that: including can
Programmed logic chip, changer, enumerator, pulse period depositor, pulse width register, comparator,
Input, the operation level that signal level is programmable logic chip of output, input signal has sampling clock, detected arteries and veins
Punching, depositor reset signal: sampling clock is produced by clock circuit;The tested recurrent pulse letter that detected pulse is an externally input
Number;Depositor reset signal is produced by peripheral circuit-reset circuit;Output signal has control signal: control signal is radio-frequency (RF) device
The pumping signal input of part enables and controls;
Changer is the tested periodic pulse signal of input to be converted to, width Tong Bus with tested periodic pulse signal be equal to clock
The narrow pulse signal in cycle, for counter reset signal, interval in reset signal burst pulse, counter O reset;
Enumerator is the counting carrying out detected pulse under sampling clock triggers;
Pulse period depositor is for preserving the pulse cycle value of tested periodic pulse signal;
Pulse width register is for preserving the pulse width measuring value of tested periodic pulse signal;
Comparator is in real time by pulse period depositor, data and the pulse period of setting, the pulse width of pulse width register
Degree typical data compares.
Periodic pulse signal based on programmable logic chip the most according to claim 1 detects protection module automatically, its
It is characterised by: programmable logic chip uses the CPLD chip of LATTICE company, and model is LC4256V-75T144I.
Periodic pulse signal based on programmable logic chip the most according to claim 1 detects protection module automatically, its
It is characterised by: clock circuit uses HXO-36B active crystal, and frequency is 10MHz.
Periodic pulse signal based on programmable logic chip the most according to claim 1 detects protection module automatically, its
It is characterised by: described peripheral circuit-reset circuit includes that resistance R, electric capacity C, resistance R connect with electric capacity C, another of resistance R
Another termination GND of termination VCC, electric capacity C.
Periodic pulse signal based on programmable logic chip the most according to claim 4 detects protection module automatically, its
Being characterised by: described resistance R is 100k Ω, electric capacity C is 0.1uF.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201620558823.0U CN205725685U (en) | 2016-06-12 | 2016-06-12 | Periodic pulse signal based on programmable logic chip detects protection module automatically |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201620558823.0U CN205725685U (en) | 2016-06-12 | 2016-06-12 | Periodic pulse signal based on programmable logic chip detects protection module automatically |
Publications (1)
Publication Number | Publication Date |
---|---|
CN205725685U true CN205725685U (en) | 2016-11-23 |
Family
ID=57301616
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201620558823.0U Active CN205725685U (en) | 2016-06-12 | 2016-06-12 | Periodic pulse signal based on programmable logic chip detects protection module automatically |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN205725685U (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108259109A (en) * | 2018-03-30 | 2018-07-06 | 新华三技术有限公司 | The network equipment and TOD synchronous method in PTP domains |
CN108282159A (en) * | 2018-02-12 | 2018-07-13 | 歌尔股份有限公司 | A kind of pulse signal generator |
CN109257034A (en) * | 2018-08-30 | 2019-01-22 | 广州金升阳科技有限公司 | A kind of PWM modulation circuit based on data control |
CN111273233A (en) * | 2020-03-04 | 2020-06-12 | 北京环境特性研究所 | Asynchronous pulse detection method and device for electronic corner reflector |
-
2016
- 2016-06-12 CN CN201620558823.0U patent/CN205725685U/en active Active
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108282159A (en) * | 2018-02-12 | 2018-07-13 | 歌尔股份有限公司 | A kind of pulse signal generator |
CN108259109A (en) * | 2018-03-30 | 2018-07-06 | 新华三技术有限公司 | The network equipment and TOD synchronous method in PTP domains |
CN109257034A (en) * | 2018-08-30 | 2019-01-22 | 广州金升阳科技有限公司 | A kind of PWM modulation circuit based on data control |
CN109257034B (en) * | 2018-08-30 | 2022-03-15 | 广州金升阳科技有限公司 | PWM modulation circuit based on data control |
CN111273233A (en) * | 2020-03-04 | 2020-06-12 | 北京环境特性研究所 | Asynchronous pulse detection method and device for electronic corner reflector |
CN111273233B (en) * | 2020-03-04 | 2022-05-03 | 北京环境特性研究所 | Asynchronous pulse detection method and device for electronic corner reflector |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN205725685U (en) | Periodic pulse signal based on programmable logic chip detects protection module automatically | |
CN107576930B (en) | power supply and relay status detection circuit and method | |
CN104320109A (en) | Pulse anti-interference method and device | |
CN103607509B (en) | A kind of shutdown alarm clock trigger system of mobile terminal and triggering method thereof | |
CN109116266A (en) | The test method of power module | |
CN108802704A (en) | A kind of radar transmitted pulse detection based on CPLD and protection system and method | |
CN108170630A (en) | A kind of serial communication baud rate adaptation method, system and equipment | |
CN101334429B (en) | Surge electric current test circuit | |
CN103954946A (en) | T/R module debugging instrument | |
CN104502883A (en) | Method for detecting and solving anomaly of metering chips | |
CN104391195A (en) | Electromagnetic interference identifying and filtering method | |
CN103293509A (en) | Calibrating method of electric energy meter system parameters | |
CN102439465B (en) | Method and device for testing signal sequence | |
CN102457268B (en) | Implementation method for 32-bit capture register | |
CN112834898A (en) | Method, device and equipment for testing stability of power supply chip of storage equipment | |
CN104375027A (en) | Method and device for testing low-power consumption electronic device and low-power consumption POS terminal | |
CN204116481U (en) | A kind of cryogenic low noise amplifier Working state checking circuit | |
CN108845517A (en) | Anticoincidence circuit and pulse signal detection circuit | |
CN204649879U (en) | The intermittent pick-up unit of capacitor | |
US20130093506A1 (en) | Solid state disk power supply system | |
CN204205547U (en) | Overcurrent protection circuit for high-power supply input end | |
CN105841776A (en) | Water level detection circuit, self-checking method thereof, and cooking utensil | |
CN108615543A (en) | Self checking method for discrete magnitude signal processing chip | |
CN108879598B (en) | USB interface protection circuit and electronic equipment | |
CN111124779B (en) | Signal detection method and device of VR chip and related components |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant |