CN107395159A - A kind of three-phase square wave power supply - Google Patents
A kind of three-phase square wave power supply Download PDFInfo
- Publication number
- CN107395159A CN107395159A CN201710474847.7A CN201710474847A CN107395159A CN 107395159 A CN107395159 A CN 107395159A CN 201710474847 A CN201710474847 A CN 201710474847A CN 107395159 A CN107395159 A CN 107395159A
- Authority
- CN
- China
- Prior art keywords
- type flip
- flip flop
- output
- square wave
- phase
- 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.)
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Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B19/00—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source
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- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
The present invention discloses a kind of three-phase square wave power supply, including signal source frequency dividing circuit and ring distributor circuit；The signal source frequency dividing circuit includes frequency divider and crystal oscillator, clock signal of the frequency divider to generation 2.4kHz after the crystal oscillator frequency dividing of connection, input signal of the clock signal as ring distributor circuit clock port, the ring distributor circuit includes three d type flip flop D1~D3 and a NAND gate, d type flip flop D1 output Q1, d type flip flop D2 outputWith the input of d type flip flop D3 output Q3 as NAND gate, the clear terminal of the output of NAND gate as three d type flip flops；D type flip flop D1 is exported, d type flip flop D2 output Q2 and d type flip flop D3 outputFor frequency 400Hz, the three-phase square wave signal of 120 ° of phase difference；Circuit structure is succinct, cost is low, debugging is convenient, and has very high precision and reliability.
Description
Technical field
The present invention relates to electronic circuit technology field, specifically a kind of three-phase square wave power supply.
Background technology
Three-phase square wave power supply be it is a kind of can phase difference output be 120 degree of three-phase square wave power supply, be widely used in imparting knowledge to students,
In the maintenance conditions of laboratory or miscellaneous equipment.The design of three-phase square wave power circuit has many kinds, traditional three-phase side
Ripple is designed using integrated circuit mostly, and its dynamic output range is narrow, and cost is high, and internal structure is complicated.
The content of the invention
It is an object of the invention to provide a kind of three-phase square wave power supply, and the three-phase square wave power supply architecture is simple, precision is high, can
By property height.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of three-phase square wave power supply, including signal source frequency dividing circuit and ring distributor circuit；The signal source frequency dividing circuit bag
Containing frequency divider and crystal oscillator, frequency divider is to the clock signal of generation 2.4kHz after the crystal oscillator frequency dividing of connection, clock
Input signal of the signal as ring distributor circuit clock port, the ring distributor circuit include three d type flip flop D1
~D3 and NAND gate, d type flip flop D1 output Q1, d type flip flop D2 outputWith d type flip flop D3 output Q3 conducts
The input of NAND gate, the clear terminal exported as three d type flip flops of NAND gate；
D type flip flop D1 outputIt is connected with d type flip flop D3 D ends, d type flip flop D1 D ends and d type flip flop D2 output Q2
It is connected；D type flip flop D2 D ends are connected with d type flip flop D3 output Q3；
D type flip flop D1 is exported, d type flip flop D2 output Q2 and d type flip flop D3 outputFor frequency 400Hz, phase difference
120 ° of three-phase square wave signal；
D type flip flop D1 output Q1, d type flip flop D2 outputAnd d type flip flop D3 output Q3 is frequency 400Hz, phase
Poor 120 ° of three-phase square wave signal, Q1,And Q3 respectively with, Q2 andOpposite in phase.
The invention has the advantages that circuit structure is succinct, cost is low, debugging is convenient, and with very high precision and can
By property.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples：
Fig. 1 is the schematic block circuit diagram of the present invention；
Fig. 2 is the circuit diagram of signal source frequency dividing circuit in Fig. 1；
Fig. 3 is the circuit diagram of annular allotter circuit in Fig. 1；
HIN1, HIN2, HIN3 state transition graph when Fig. 4 is present invention work.
Embodiment
As shown in figure 1, the present invention provides a kind of three-phase square wave power supply, including signal source frequency dividing circuit 1 and ring distributor
Circuit 2；With reference to shown in Fig. 2, the signal source frequency dividing circuit 1 includes frequency divider N1 and crystal oscillator N2, and frequency divider N1 is used
CD4060B, crystal oscillator N2 both ends connect frequency divider N1's respectively
CKI ends withEnd, crystal oscillator N2 both ends are also parallel with electric capacity C1, the C2 being serially connected, the electric capacity C2 other end
VSS ends, CLR ends common ground with frequency divider N1, frequency divider N1 CKI ends withResistance R1 is also associated between end, is divided
Device N1 vdd terminal connection 5V working powers, frequency divider N1 are believed the clock that 2.4kHz is produced after the crystal oscillator frequency dividing of connection
Number CLK.
With reference to shown in Fig. 3, ring distributor circuit 2 includes three d type flip flop D1~D3 and a NAND gate N3, D are touched
Hair device uses CD4073B using CD4013B, NAND gate；Clock signal clk is as three d type flip flop D1~D3 clock ports
Input signal, d type flip flop D1 output Q1, d type flip flop D2 outputOutput Q3 with d type flip flop D3 is as NAND gate N3's
Input, the NAND gate N3 clear terminal exported as three d type flip flops.
D type flip flop D1 outputIt is connected with d type flip flop D3 D ends, d type flip flop D1 D ends are defeated with d type flip flop D2's
Go out Q2 to be connected；D type flip flop D2 D ends are connected with d type flip flop D3 output Q3.
D type flip flop D1~D3 vdd terminal connection 5V working powers, d type flip flop D1 S and VSS end ground connection, d type flip flop D2
S ends ground connection, d type flip flop D3 S and VSS end is grounded.
According to crystal oscillator N2 attachment structure, following logical relation is obtained：
（n+1）=Q3（n）（1）
Q2（n+1）=Q1（n）（2）
Q3（n+1）=Q2（n）（3）
, will for ease of analysisHIN1 is defined as, Q2 is defined as HIN2,HIN3 is defined as, Q1 is defined as LIN1,Definition
LIN3 is defined as LIN2, Q3；
At any time, HIN1HIN2HIN3 has 000~111 8 kinds of states,
Work as HIN1HIN2HIN3（n）=Q2（n）When=111, according to formula（1）~（3）HIN1HIN2HIN3 can be obtained（n+1）=
Q2 （n+1）=Q3Q1（n）=000.
Work as HIN1HIN2HIN3（n）=Q2（n）When=000, three inputs and door input Q1 Q3（n）=111, output letter
Number R=1, reset three d type flip flops, i.e. Q1Q2Q3（n+1）=000, therefore HIN1HIN2HIN3（n+1）=Q2（n+1）=
101。
Then according to formula（1）~（3）, HIN1HIN2HIN3（n+2）=Q2（n+2）=Q3Q1（n+1）=001, according to
This analogizes.
With reference to shown in Fig. 4, circuit stability operation after, HIN1HIN2HIN3 101,001,011,010,110,100 this six
Constantly changed between individual state, HIN1, HIN2, HIN3 is become input clock six and divide, i.e. frequency 400Hz, 120 ° of phase difference
Three-phase square wave signal；LIN1, LIN2, LIN3 opposite in phase with HIN1, HIN2, HIN3 respectively.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention；Appoint
What those skilled in the art, without departing from the scope of the technical proposal of the invention, all using the side of the disclosure above
Method and technology contents make many possible changes and modifications to technical solution of the present invention, or are revised as the equivalent reality of equivalent variations
Apply example.Therefore, every content without departing from technical solution of the present invention, the technical spirit according to the present invention are done to above example
Any simple modification, equivalent substitution, equivalence changes and modification, still fall within the range of technical solution of the present invention protects.
Claims (1)
1. a kind of three-phase square wave power supply, it is characterised in that including signal source frequency dividing circuit and ring distributor circuit；The signal
Source frequency dividing circuit includes frequency divider and crystal oscillator, frequency divider to produced after the crystal oscillator frequency dividing of connection 2.4kHz when
Clock signal, input signal of the clock signal as ring distributor circuit clock port, the ring distributor circuit include three
Individual d type flip flop D1~D3 and a NAND gate, d type flip flop D1 output Q1, d type flip flop D2 outputWith d type flip flop D3
Inputs of the output Q3 as NAND gate, the clear terminal of the output of NAND gate as three d type flip flops；
D type flip flop D1 outputIt is connected with d type flip flop D3 D ends, d type flip flop D1 D ends and d type flip flop D2 output Q2 phases
Even；D type flip flop D2 D ends are connected with d type flip flop D3 output Q3；
D type flip flop D1 is exported, d type flip flop D2 output Q2 and d type flip flop D3 outputFor frequency 400Hz, phase difference
120 ° of three-phase square wave signal；
D type flip flop D1 output Q1, d type flip flop D2 outputAnd d type flip flop D3 output Q3 is frequency 400Hz, phase
Poor 120 ° of three-phase square wave signal, Q1,And Q3 respectively with, Q2 andOpposite in phase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710474847.7A CN107395159A (en) | 2017-06-21 | 2017-06-21 | A kind of three-phase square wave power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710474847.7A CN107395159A (en) | 2017-06-21 | 2017-06-21 | A kind of three-phase square wave power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107395159A true CN107395159A (en) | 2017-11-24 |
Family
ID=60333555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710474847.7A Pending CN107395159A (en) | 2017-06-21 | 2017-06-21 | A kind of three-phase square wave power supply |
Country Status (1)
| Country | Link |
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| CN (1) | CN107395159A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101800536A (en) * | 2009-02-11 | 2010-08-11 | 中国科学院电子学研究所 | Pulse stretcher for improving stability of pulse swallow frequency divider and method |
| CN203135816U (en) * | 2013-02-28 | 2013-08-14 | 杨锡山 | Three-phase square-wave generator |
| CN103684465A (en) * | 2013-12-20 | 2014-03-26 | 清华大学 | Multiphase clock generating circuit for asynchronous successive approximation analog/digital converter |
| CN106342405B (en) * | 2010-09-14 | 2014-05-14 | 中国航空工业集团公司雷华电子技术研究所 | Digital radar frequency synthesizer controls pulse-generating circuit |
| CN203984373U (en) * | 2014-07-22 | 2014-12-03 | 遵义师范学院 | A kind of 64 digit pulse generators |
| CN106546830A (en) * | 2016-10-27 | 2017-03-29 | 北京机械设备研究所 | A kind of N phase voltages phase shortage and negative phase sequence detection method |
-
2017
- 2017-06-21 CN CN201710474847.7A patent/CN107395159A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101800536A (en) * | 2009-02-11 | 2010-08-11 | 中国科学院电子学研究所 | Pulse stretcher for improving stability of pulse swallow frequency divider and method |
| CN106342405B (en) * | 2010-09-14 | 2014-05-14 | 中国航空工业集团公司雷华电子技术研究所 | Digital radar frequency synthesizer controls pulse-generating circuit |
| CN203135816U (en) * | 2013-02-28 | 2013-08-14 | 杨锡山 | Three-phase square-wave generator |
| CN103684465A (en) * | 2013-12-20 | 2014-03-26 | 清华大学 | Multiphase clock generating circuit for asynchronous successive approximation analog/digital converter |
| CN203984373U (en) * | 2014-07-22 | 2014-12-03 | 遵义师范学院 | A kind of 64 digit pulse generators |
| CN106546830A (en) * | 2016-10-27 | 2017-03-29 | 北京机械设备研究所 | A kind of N phase voltages phase shortage and negative phase sequence detection method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171124 |
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| RJ01 | Rejection of invention patent application after publication |