CN2694622Y - Read-in and serial output circuit for multipath resistance variables - Google Patents
Read-in and serial output circuit for multipath resistance variables Download PDFInfo
- Publication number
- CN2694622Y CN2694622Y CN 200420050866 CN200420050866U CN2694622Y CN 2694622 Y CN2694622 Y CN 2694622Y CN 200420050866 CN200420050866 CN 200420050866 CN 200420050866 U CN200420050866 U CN 200420050866U CN 2694622 Y CN2694622 Y CN 2694622Y
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- China
- Prior art keywords
- resistance
- output
- counter
- circuit
- oscillating circuit
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Abstract
The utility model discloses a read-in and serial output circuit for multi-path resistance variables that is applied to multi-channel proportional remote controllers and comprises a counter, an oscillating circuit and n paths measured resistors. The counter is provided with multi-path output ends, the reset signals are output by the output end (Q< n + 1 >) of the counter to the reset end of the counter, and the output ends (Q< 1 >-Q < n >) of the counter are connected with one end of each path measured resistor in one-to-one corresponding mode, and are output triggering signals to the triggering input end of the oscillating circuit by the other end of each path measured resistor in turn. The output end of the oscillating circuit is connected with the input end of the clock signal of the counter on one hand, and the output end of the oscillating circuit is serially output a series of pulse signals, and the widths of the pulse signals are relevant to the resistance values of the n paths measured resistors. Wherein, the counter can adopt the Johnson counter, and the oscillating circuit comprises a 555 timer, resistors (R < 00 > and (R < 01 >) and a capacitor C. Thus, the read-in and serial output circuit for multi-path resistance variables of the utility model has the features of simple structure, low cost and good performance.
Description
Technical field
The utility model relates to reading in and the serial output circuit of a kind of multichannel resistance variable that is applied to multichannel proportional remote control device.
Technical background
At present in general multichannel proportional remote control device, people adopt A/D converter to read in analog quantity from the resistance of X, Y-axis joystick on the remote controller usually, and convert thereof into digital quantity, again by the single-chip microcomputer back serial output of encoding.Its structure is comparatively complicated, and adopts integrated chip controls such as single-chip microcomputer and A/D converter, and cost is than higher.
The utility model content
The purpose of this utility model is: at the deficiencies in the prior art, provide a kind of the reading in and the serial output circuit of multichannel resistance variable of simple in structure, with low cost, function admirable.
In order to solve the problems of the technologies described above, technical solution adopted in the utility model is: reading in and the serial output circuit of a kind of multichannel resistance variable, comprise counter, oscillating circuit and n road measured resistance, and described counter has multi-channel output, its output Q
N+1Export reset signal to its reset terminal, its output Q
1～Q
nAn end that connects described n road measured resistance one to one, and order is exported the triggering input of triggering signal to oscillating circuit by the other end of described n road measured resistance, the output of described oscillating circuit is the clock signal input terminal of linkage counter on the one hand, on the other hand serial export a series of width respectively with the relevant pulse signal of resistance of described n road measured resistance.
The resistance R that can also comprise diode D and known resistance
T, the output Q of described counter
0By diode D and resistance R
TConnect the triggering input of oscillating circuit, thereby make oscillating circuit at the output Q that receives from counter
0Triggering signal after, produce a width and described resistance R
TThe relevant initial pulse of resistance.
Can also comprise diode D
1～D
n, the output Q of described counter
1～Q
nRespectively by diode D
1～D
nLink with described n road measured resistance.
Described oscillating circuit can be by 555 timers, resistance R
00, R
01, capacitor C constitutes described resistance R
00An end be the triggering input of this vibration circuit, its other end connects the discharge end of 555 timers, and passes through resistance R
01The threshold value input that connects 555 timers, the threshold value input of described 555 timers is connected with its triggering input, and by capacitor C ground connection, its output is the output of oscillating circuit.
Described measured resistance can be variable resistor or thermistor.
Described measured resistance can be the resistance R by a plurality of resistance weighting values
0～R
KAnd a plurality of switch S
0～S
KThe equivalent resistance R that constitutes
n, described resistance R
0～R
KCoupled in series is at the output Q of counter
nOn, described switch S
0～S
KBe connected in parallel on resistance R one to one
0～R
KTwo ends.
It is 4017 johnoson counter that described counter can adopt model.
In technique scheme, the utility model is owing to take simple counter and oscillating circuit to match, make oscillating circuit produce relevant with the resistance of the measured resistance respectively pulse signal of a series of width, thereby can read in multichannel variable resistor, thermistor or variable connector amount, and carry out serial output.Its service behaviour has reached the higher performance that integrated component had of available technology adopting price fully, and its price is quite cheap, can reduce cost greatly, is applicable to various multichannel proportional remote control devices.
Description of drawings
Accompanying drawing 1 is a circuit block diagram of the present utility model;
Accompanying drawing 2 is the circuit theory diagrams of a kind of preferred embodiment of the present utility model;
Accompanying drawing 3 is the output waveform figure of circuit among Fig. 2.
Embodiment
Below in conjunction with Figure of description and specific embodiment the utility model is described in further detail.
With reference to the accompanying drawings 1, the reading in and the serial output circuit of a kind of multichannel resistance variable that the utility model provides is by the resistance R of counter, oscillating circuit, diode D and known resistance
T, diode D
1～D
nConstitute with n road measured resistance.
Described counter has Q
0～Q
N+1The road output, its output Q
0By diode D and resistance R
TConnect the triggering input of oscillating circuit, thereby make oscillating circuit at the output Q that receives from counter
0Triggering signal after, produce a width and described resistance R
TThe relevant initial pulse of resistance; Its output Q
1～Q
nCorresponding to one by one diode D
1～D
nAn end that connects corresponding one tunnel measured resistance in the measured resistance of described n road, and order is exported the triggering input of triggering signal to oscillating circuit by the other end of described n road measured resistance, the output of described oscillating circuit is the clock signal input terminal of linkage counter on the one hand, on the other hand serial export a series of width respectively with the relevant pulse signal of resistance of described n road measured resistance; Its output Q
N+1The output reset signal is to its reset terminal.
Accompanying drawing 2 provides a preferred embodiment of the present utility model.
As shown, described counter employing model is 4017 johnoson counter IC1.
The output Q of counter IC1
1～Q
N-1On the measured resistance that connect be variable resistor or thermistor R
W～R
W (n-1)Its output Q
N+1Export reset signal to its reset terminal RST by resistance R a; Be connected capacitor C between its power end and its reset terminal
1
The output Q of described counter IC1
nOn the measured resistance that connect be resistance R by a plurality of resistance weighting values
0～R
KAnd a plurality of switch S
0～S
KThe equivalent resistance R that constitutes
n, described resistance R
0～R
KCoupled in series is at the output Q of counter
nOn, described switch S
0～S
KBe connected in parallel on resistance R one to one
0～R
KTwo ends.
Described oscillating circuit is by 555 timer IC2, resistance R
00, R
01, capacitor C constitutes described resistance R
00An end be the triggering input of this vibration circuit, its other end connects the discharge end 7 of 555 timer IC2, and passes through resistance R
01The threshold value input 6 that connects 555 timer IC2, the threshold value input 6 of described 555 timer IC2 is connected with its triggering input 2, and by capacitor C ground connection, its output O is the output of oscillating circuit.
The operation principle of present embodiment is:
With reference to figure 2,3, behind the electrification reset, the Q of counter IC1
0End is output as high level, all the other Q
1～Q
N+1End is output as low level, and the output O of 555 timer IC2 is a high level simultaneously.Q
0The high level of end output is by diode D, resistance R
T, R
00, R
01The charging of phase capacitor C, at this, diode D plays the buffer action between each passage.After the voltage at C two ends was increased to a certain degree, C can pass through R again
01Discharge, output O exports step-down, thus the initial pulse (as Fig. 3) that to export a width be T has so also just formed the vibration of timer IC2.The rising edge of timer IC2 output waveform makes counter add 1 displacement.Therefore, the width of T and (R
T+ R
00) the one-tenth fixed proportion.Adjust R
TValue, can make the width of T be far longer than the output pulse width of measured resistance.And capacitor C T discharge time
1Depend on resistance R
01Thereby, as the interval pulse between the output pulse of each measured resistance.
After counter IC1 adds 1 displacement, Q
1Be high level, this high level passes through D
1, R
W, R
00, R
01To the electric capacity charging, the high level time of the output O output of IC2 (is T
WWidth) with (R
W+ R
00) value proportional, by detecting the width of TW, just can calculate R
WActual value.Therewith similar, thus can be by detecting the pulse width T of timer IC2 order output
W, T
W (1), T
W (2)T
W (n-1), calculate measured resistance R
W (1), R
W (2)R
W (n-1)Resistance.
The Q of counter IC1
nRealize the detection of variable connector amount on the end, because resistance R
0～R
KResistance weighting value, when different switch S
0～S
KDuring connection, total equivalent resistance R
nPresent different resistances, make the output pulse width T of timer IC2
nObtain different width, therefore only need to differentiate this width, just can offer an explanation out the combined situation of the on off state in the switches set.
Work as Q
N+1During for high level, counter reset comes back to the state that sends starting mark.The output O of timer IC2 is that relevant with the resistance of the measured resistance respectively pulse signal of a series of width has been exported in serial.
Circulation so repeatedly then can realize reading in and serial output of multichannel resistance simulation amount or multi way temperature variable and variable connector amount.
N in these claims and the specification and K are the natural number greater than 0.Its meaning is, during actual the use, and the quantity of the quantity of selector switch amount, and measured resistance as required.Get 3 as n, K got 3 o'clock, then the utility model multichannel resistance variable read in and the serial output circuit can be realized reading in of 3 road resistance variablees and 3 way switch amounts and serial output.
Claims (8)
1, reading in and the serial output circuit of a kind of multichannel resistance variable is characterized in that: comprise counter, oscillating circuit and n road measured resistance, described counter has multi-channel output, its output (Q
N+1) export reset signal to its reset terminal, its output (Q
1～Q
n) connect an end of described n road measured resistance one to one, and order is exported the triggering input of triggering signal to oscillating circuit by the other end of described n road measured resistance, the output of described oscillating circuit is the clock signal input terminal of linkage counter on the one hand, on the other hand serial export a series of width respectively with the relevant pulse signal of resistance of described n road measured resistance.
2, reading in and the serial output circuit of multichannel resistance variable according to claim 1 is characterized in that: the resistance (R that also comprises diode (D) and known resistance
T), the output (Q of described counter
0) by diode (D) and resistance (R
T) connect the triggering input of oscillating circuit, thus make oscillating circuit at the output (Q that receives from counter
0) triggering signal after, produce a width and described resistance (R
T) the relevant initial pulse of resistance.
3, reading in and the serial output circuit of multichannel resistance variable according to claim 1 is characterized in that: also comprise diode (D
1～D
n), the output (Q of described counter
1～Q
n) respectively by diode (D
1～D
n) link with described n road measured resistance.
4, as the reading in and the serial output circuit of multichannel resistance variable as described in the claim 1,2 or 3, it is characterized in that: described oscillating circuit is by 555 timers, resistance (R
00), (R
01), capacitor C constitutes described resistance (R
00) an end be the triggering input of this vibration circuit, its other end connects the discharge end of 555 timers, and by resistance (R
01) connecting the threshold value input of 555 timers, the threshold value input of described 555 timers is connected with its triggering input, and passes through capacitor C ground connection, and its output is the output of oscillating circuit.
5, as the reading in and the serial output circuit of multichannel resistance variable as described in the claim 4, it is characterized in that: described measured resistance is a variable resistor.
6, as the reading in and the serial output circuit of multichannel resistance variable as described in the claim 4, it is characterized in that: described measured resistance is a thermistor.
7, as the reading in and the serial output circuit of multichannel resistance variable as described in the claim 4, it is characterized in that: described measured resistance is the resistance (R by a plurality of resistance weighting values
0～R
K) and a plurality of switch (S
0～S
K) equivalent resistance (R that constitutes
n), described resistance (R
0～R
K) coupled in series is at the output (Q of counter
n) on, described switch (S
0～S
K) be connected in parallel on resistance (R one to one
0～R
K) two ends.
8, as the reading in and the serial output circuit of multichannel resistance variable as described in the claim 4, it is characterized in that: it is 4017 johnoson counter that described counter adopts model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420050866 CN2694622Y (en) | 2004-05-10 | 2004-05-10 | Read-in and serial output circuit for multipath resistance variables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420050866 CN2694622Y (en) | 2004-05-10 | 2004-05-10 | Read-in and serial output circuit for multipath resistance variables |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2694622Y true CN2694622Y (en) | 2005-04-20 |
Family
ID=34777019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420050866 Expired - Fee Related CN2694622Y (en) | 2004-05-10 | 2004-05-10 | Read-in and serial output circuit for multipath resistance variables |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2694622Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101498738B (en) * | 2008-01-29 | 2010-09-01 | 中国科学院空间科学与应用研究中心 | Multi-track simultaneous measurement apparatus and method |
| CN108765866A (en) * | 2018-03-09 | 2018-11-06 | 沈阳新松智能驱动股份有限公司 | A kind of servo-driver multiple alarm information synthesis method |
-
2004
- 2004-05-10 CN CN 200420050866 patent/CN2694622Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101498738B (en) * | 2008-01-29 | 2010-09-01 | 中国科学院空间科学与应用研究中心 | Multi-track simultaneous measurement apparatus and method |
| CN108765866A (en) * | 2018-03-09 | 2018-11-06 | 沈阳新松智能驱动股份有限公司 | A kind of servo-driver multiple alarm information synthesis method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |