CN113885637A - Voltage control method, master control device and voltage output device - Google Patents
Voltage control method, master control device and voltage output device Download PDFInfo
- Publication number
- CN113885637A CN113885637A CN202111362283.0A CN202111362283A CN113885637A CN 113885637 A CN113885637 A CN 113885637A CN 202111362283 A CN202111362283 A CN 202111362283A CN 113885637 A CN113885637 A CN 113885637A
- Authority
- CN
- China
- Prior art keywords
- square wave
- wave signals
- voltage
- signal
- duty ratio
- 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.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Dc-Dc Converters (AREA)
Abstract
The application provides a voltage control method, a main control device and a voltage output device. The method comprises the following steps: when the target voltage value is between the lower voltage limit threshold and the upper voltage limit threshold, the number of the first square wave signals in the continuous square wave signals is set to satisfy the following formula: v = (N1 × V1+ N2 × V2)/(N1 + N2); wherein V is a target voltage value, N1 is the number of first square wave signals in a set number of consecutive square wave signals, N2 is the number of second square wave signals in a set number of consecutive square wave signals, V1 is a lower voltage limit threshold, and V2 is an upper voltage limit threshold. The method provided by the application can realize accurate control of the output voltage value, only a single signal line is needed for transmission of the control signal, and the anti-interference performance is strong.
Description
Technical Field
The application belongs to the technical field of signal processing, and particularly relates to a voltage control method, a master control device and a voltage output device.
Background
In the circuit boards of various electronic devices, a voltage source is usually provided to provide a controllable voltage output. In the related art, a processor sends a square wave signal to a voltage source. The duty ratio of the square wave signal and the voltage value output by the voltage source are in a linear relation. The control mode has poor anti-interference performance.
Disclosure of Invention
The application aims to overcome the defects in the prior art and provides a voltage control method, a main control device and a voltage output device.
In order to solve the technical problem, the following technical scheme is adopted in the application: a voltage control method is applied to a main control device and comprises the following steps:
determining a target voltage value, a lower voltage threshold and an upper voltage threshold;
a single signal wire is adopted to send continuous square wave signals to the voltage output device, wherein, each set number of continuous square wave signals is a control period, the set number of continuous square wave signals comprises a first square wave signal with a first duty ratio and/or a second square wave signal with a second duty ratio, the first duty ratio is smaller than the second duty ratio, when the target voltage value is equal to the lower voltage limit threshold, only the first square wave signal is included in the set number of continuous square wave signals, when the target voltage value is equal to the upper voltage threshold, only the second square wave signal is included in the set number of consecutive square wave signals, when the target voltage value is between the lower voltage threshold and the upper voltage threshold, the number of the first square wave signals in the set number of continuous square wave signals satisfies the following formula:
V=（N1*V1+N2*V2）/(N1+N2)；
wherein V is the target voltage value, N1 is the number of first square wave signals in the set number of consecutive square wave signals, N2 is the number of second square wave signals in the set number of consecutive square wave signals, V1 is the lower voltage threshold, and V2 is the upper voltage threshold.
In order to solve the above technical problem, the present application adopts the following technical solution, where the voltage control method is applied to a voltage output device, and the voltage control method includes:
receiving continuous square wave signals through a single signal line;
judging the duty ratio of each square wave signal, and executing the following judgment once for every set number of continuous square wave signals:
if the current duty ratios of the set number of continuous square wave signals are all the first duty ratios, the voltage output device outputs a voltage signal with a voltage lower limit threshold value;
if the current duty ratios of the set number of continuous square wave signals are all second duty ratios, the voltage output device outputs a voltage signal with the value of the voltage upper limit threshold, and the second duty ratios are larger than the first duty ratios;
if the preset number of continuous square wave signals comprise the square wave signals with the first duty ratio and the square wave signals with the second duty ratio, determining the voltage value of the voltage signal output by the voltage output device according to the following formula:
V=（N1*V1+N2*V2）/(N1+N2)；
wherein V is the target voltage value, N1 is the number of first square wave signals in the set number of consecutive square wave signals, N2 is the number of second square wave signals in the set number of consecutive square wave signals, V1 is the lower voltage threshold, and V2 is the upper voltage threshold.
In order to solve the technical problem, the following technical scheme is adopted in the application: a master control device, comprising:
the determining module is used for determining a target voltage value, a lower voltage limit threshold and an upper voltage limit threshold;
the control module is used for sending continuous square wave signals to the voltage output device by adopting a single signal wire, wherein each set number of continuous square wave signals is a control period, the set number of continuous square wave signals comprises a first square wave signal with a first duty ratio and/or a second square wave signal with a second duty ratio, and the first duty ratio is smaller than the second duty ratio, when the target voltage value is equal to the lower voltage limit threshold, only the first square wave signal is included in the set number of continuous square wave signals, when the target voltage value is equal to the upper voltage threshold, only the second square wave signal is included in the set number of consecutive square wave signals, when the target voltage value is between the lower voltage threshold and the upper voltage threshold, the number of the first square wave signals in the set number of continuous square wave signals satisfies the following formula:
V=（N1*V1+N2*V2）/(N1+N2)；
wherein V is the target voltage value, N1 is the number of first square wave signals in the set number of consecutive square wave signals, N2 is the number of second square wave signals in the set number of consecutive square wave signals, V1 is the lower voltage threshold, and V2 is the upper voltage threshold.
In order to solve the technical problem, the following technical scheme is adopted in the application: a voltage output device comprising:
a receiving module for receiving continuous square wave signal via single signal line
The output module is used for judging the duty ratio of each square wave signal, and executing the following judgment once for every set number of continuous square wave signals:
if the current duty ratios of the set number of continuous square wave signals are all the first duty ratios, the voltage output device outputs a voltage signal with a voltage lower limit threshold value;
if the current duty ratios of the set number of continuous square wave signals are all second duty ratios, the voltage output device outputs a voltage signal with the value of the voltage upper limit threshold, and the second duty ratios are larger than the first duty ratios;
if the preset number of continuous square wave signals comprise the square wave signals with the first duty ratio and the square wave signals with the second duty ratio, determining the voltage value of the voltage signal output by the voltage output device according to the following formula:
V=（N1*V1+N2*V2）/(N1+N2)；
wherein V is the target voltage value, N1 is the number of first square wave signals in the set number of consecutive square wave signals, N2 is the number of second square wave signals in the set number of consecutive square wave signals, V1 is the lower voltage threshold, and V2 is the upper voltage threshold.
Compared with the prior art, the beneficial effect of this application is: the main control device does not need to accurately control the duty ratio of the square wave signal, and can accurately convey the information of the set value of the output voltage by only controlling the proportion of the square wave signal with large duty ratio and the square wave signal with small duty ratio. The voltage output device does not need to accurately detect the duty ratio of the square wave signal, and can judge the voltage output value set by the main control device only by judging the proportion of the square wave signal with the large duty ratio and the square wave signal with the small duty ratio. Even if the duty ratio of the square wave signal with the long duty ratio and the square wave signal with the short duty ratio is unstable or inaccurate, accurate transmission of voltage value information can be ensured, and the anti-interference performance is strong.
Drawings
Fig. 1 is a block diagram of a master control device and a voltage output device according to an embodiment of the present application.
Detailed Description
In this application, it will be understood that terms such as "including" or "having," or the like, are intended to indicate the presence of the disclosed features, integers, steps, acts, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, acts, components, parts, or combinations thereof.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
The application is further described with reference to examples of embodiments shown in the drawings.
Referring to fig. 1, an application scenario of the embodiment of the present application is that a main control device 1 (for example, a CPU) sends a signal to a voltage output device 2 (for example, a voltage source including a controller) through a single signal line 3 to set an output voltage of the voltage output device 2.
Based on the hardware structure, an embodiment of the present application provides a voltage control method, which is applied to a main control device, and the voltage control method includes the following processing steps.
Step 101, determining a target voltage value, a lower voltage threshold and an upper voltage threshold.
The lower voltage threshold and the upper voltage threshold may be preset to match the performance of the voltage output device.
The target voltage value may be set by receiving a user operation, or may be determined by the processor in accordance with the execution of its own program.
Step 102, sending continuous square wave signals to the voltage output device by using a single signal wire, wherein each set number of continuous square wave signals is a control period, the set number of continuous square wave signals comprises a first square wave signal with a first duty ratio and/or a second square wave signal with a second duty ratio, the first duty ratio is smaller than the second duty ratio, when the target voltage value is equal to the lower voltage limit threshold, only the first square wave signal is included in the set number of continuous square wave signals, when the target voltage value is equal to the upper voltage threshold, only the second square wave signal is included in the set number of consecutive square wave signals, when the target voltage value is between the lower voltage threshold and the upper voltage threshold, the number of the first square wave signals in the set number of continuous square wave signals satisfies the following formula:
V=（N1*V1+N2*V2）/(N1+N2)；
wherein V is the target voltage value, N1 is the number of first square wave signals in the set number of consecutive square wave signals, N2 is the number of second square wave signals in the set number of consecutive square wave signals, V1 is the lower voltage threshold, and V2 is the upper voltage threshold.
The following examples are given.
The output voltage of a certain voltage source is regulated within the range: 1.0V to 2.0V. The frequency of the square wave signal sent by the main control device is 100KHz, and the duty ratios of the square wave signals with two pulse widths are respectively as follows: 20% and 80%.
When the master control device continuously transmits a pulse with a duty ratio of 20%, the expression means that the set voltage output device outputs a voltage of 1.0V.
When the main control device continuously sends the pulse with the duty ratio of 80%, the expression means that the set voltage output device outputs the voltage of 2.0V.
When the main control device sends every 9 pulses with 20% duty ratio, 1 pulse with 80% duty ratio is sent, and the expression means that the voltage output device is set to output 1.1V voltage. The calculation process of the 1.1V voltage is as follows:
（9*1.0 + 1*2.0）/10 = 1.1。
when the main control device sends 8 pulses with 20% duty ratio, the main control device sends 2 pulses with 80% duty ratio, and the expression means that the set voltage output device outputs 1.2V voltage. The calculation process of the 1.2V voltage is as follows:
（8*1.0 + 2*2.0）/10 = 1.2。
the granularity of the voltage adjustment in the above example was 0.1V.
If it is desired to increase the granularity of the voltage adjustment, it is only necessary to increase the number of periodic pulses on the control signal, for example to 100 pulses to form a group of periodic pulses. The adjustment range of the output voltage of the voltage source is still: 1.0V to 2.0V.
When the main control device sends every 99 pulses with 20% duty ratio, 1 pulse with 80% duty ratio is sent, and the expression means that the voltage output device is set to output 1.01V voltage. The calculation process of the 1.01V voltage is as follows:
（99*1.0 + 1*2.0）/100 = 1.01。
when the main control device sends 98 pulses with 20% duty ratio, 2 pulses with 80% duty ratio are sent, and the expression means that the voltage output device is set to output 1.02V voltage. The calculation process of the 1.02V voltage is as follows:
（98*1.0 + 2*2.0）/100 = 1.02。
the granularity of the voltage adjustment at this time was 0.01V.
The main control device does not need to accurately control the duty ratio of the square wave signal, and can accurately convey the information of the set value of the output voltage by only controlling the proportion of the square wave signal with large duty ratio and the square wave signal with small duty ratio. The voltage output device does not need to accurately detect the duty ratio of the square wave signal, and can judge the voltage output value set by the main control device only by judging the proportion of the square wave signal with the large duty ratio and the square wave signal with the small duty ratio. Even if the duty ratio of the square wave signal with the long duty ratio and the square wave signal with the short duty ratio is unstable or inaccurate, accurate transmission of voltage value information can be ensured, and the anti-interference performance is strong.
Optionally, when the target voltage value is between the lower voltage threshold and the upper voltage threshold, the second square wave signal is located after the first square wave signal in the set number of consecutive square wave signals.
I.e. the master device first sends a short pulse and then a long pulse.
Optionally, when the target voltage value is between the lower voltage threshold and the upper voltage threshold, the second square wave signal is located before the first square wave signal in the set number of consecutive square wave signals.
I.e. the master device first sends a long pulse and then a short pulse.
Optionally, the square wave signal starts with a rising edge. Of course, a square wave signal can also start with a falling edge.
Based on the same inventive concept as the previous embodiment, the embodiment of the present application further provides a voltage control method applied to a voltage output apparatus, the voltage control method including the following steps.
Step 201, receiving continuous square wave signals through a single signal line.
Step 202, determining the duty ratio of each square wave signal, and performing the following determination once for each set number of continuous square wave signals:
if the current duty ratios of the set number of continuous square wave signals are all the first duty ratios, the voltage output device outputs a voltage signal with a voltage lower limit threshold value;
if the current duty ratios of the set number of continuous square wave signals are all second duty ratios, the voltage output device outputs a voltage signal with the value of the voltage upper limit threshold, and the second duty ratios are larger than the first duty ratios;
if the preset number of continuous square wave signals comprise the square wave signals with the first duty ratio and the square wave signals with the second duty ratio, determining the voltage value of the voltage signal output by the voltage output device according to the following formula:
V=（N1*V1+N2*V2）/(N1+N2)；
wherein V is the target voltage value, N1 is the number of first square wave signals in the set number of consecutive square wave signals, N2 is the number of second square wave signals in the set number of consecutive square wave signals, V1 is the lower voltage threshold, and V2 is the upper voltage threshold.
The decoding process of the voltage output device to the control signal corresponds to the encoding process of the main control device to the control signal. Reference may be made in particular to the description of the preceding embodiments.
Based on the same inventive concept, referring to fig. 1, an embodiment of the present application provides a master control device, including:
a determining module 11, configured to determine a target voltage value, a lower voltage threshold, and an upper voltage threshold;
a control module 12 for sending continuous square wave signal to the voltage output device by using single signal line, wherein each set number of continuous square wave signals is a control period, the set number of continuous square wave signals comprises a first square wave signal with a first duty ratio and/or a second square wave signal with a second duty ratio, and the first duty ratio is smaller than the second duty ratio, when the target voltage value is equal to the lower voltage limit threshold, only the first square wave signal is included in the set number of continuous square wave signals, when the target voltage value is equal to the upper voltage threshold, only the second square wave signal is included in the set number of consecutive square wave signals, when the target voltage value is between the lower voltage threshold and the upper voltage threshold, the number of the first square wave signals in the set number of continuous square wave signals satisfies the following formula:
V=（N1*V1+N2*V2）/(N1+N2)；
wherein V is the target voltage value, N1 is the number of first square wave signals in the set number of consecutive square wave signals, N2 is the number of second square wave signals in the set number of consecutive square wave signals, V1 is the lower voltage threshold, and V2 is the upper voltage threshold.
Based on the same inventive concept, referring to fig. 1, an embodiment of the present application provides a voltage output apparatus including:
the receiving module 21 is configured to receive a continuous square wave signal through a single signal line;
the output module 22 is configured to determine a duty ratio of each square wave signal, and perform the following determination once for each set number of consecutive square wave signals:
if the current duty ratios of the set number of continuous square wave signals are all the first duty ratios, the voltage output device outputs a voltage signal with a voltage lower limit threshold value;
if the current duty ratios of the set number of continuous square wave signals are all second duty ratios, the voltage output device outputs a voltage signal with the value of the voltage upper limit threshold, and the second duty ratios are larger than the first duty ratios;
if the preset number of continuous square wave signals comprise the square wave signals with the first duty ratio and the square wave signals with the second duty ratio, determining the voltage value of the voltage signal output by the voltage output device according to the following formula:
V=（N1*V1+N2*V2）/(N1+N2)；
wherein V is the target voltage value, N1 is the number of first square wave signals in the set number of consecutive square wave signals, N2 is the number of second square wave signals in the set number of consecutive square wave signals, V1 is the lower voltage threshold, and V2 is the upper voltage threshold.
Alternatively, the output module 22 determines the number of short pulses and the number of long pulses as follows: the output device 22 comprises a counter 221, and the counter 221 is configured to count a total duration of a high level state of the consecutive N square wave signals of the set number according to the sampling clock signal, so as to obtain a counting result M; the output module 22 is specifically configured to determine, according to the counting result M, the number N1 of the square wave signals with the first duty ratio and the number N2 of the square wave signals with the second duty ratio in the preset number of consecutive square wave signals, where:
N1*T1+N2*T2=T0*M；
N1+N2=N；
wherein T1 is a duration of a high level of the square wave signal of the first duty ratio, T2 is a duration of a high level of the square wave signal of the second duty ratio, and T0 is a clock period of a sampling clock signal of the counter.
Alternatively, the output module 22 determines the number of short pulses and the number of long pulses as follows: the output module 22 includes a counter 221, where the counter 221 is configured to count durations of high level states of the consecutive N square wave signals of the set number according to a sampling clock signal, and the output module 22 is specifically configured to use, as the number N1 of the square wave signals of the first duty ratio, the number of square waves whose count values are smaller than a first set threshold in the consecutive N square wave signals of the set number, and use, as the number N2 of the square wave signals of the second duty ratio, the number of square waves whose count values are larger than a second set threshold, where:
T1≤Th1*T0＜Th2*T0≤T2；
wherein T1 is a duration of a high level of the square wave signal with the first duty ratio, Th1 is the first set threshold, Th2 is the second set threshold, and T0 is a clock period of a sampling clock signal of the counter.
The embodiments in the present application are described in a progressive manner, and the same and similar parts among the embodiments can be referred to each other, and each embodiment focuses on the differences from the other embodiments.
The protective scope of the present application is not limited to the above-described embodiments, and it is apparent that various modifications and variations can be made to the present application by those skilled in the art without departing from the scope and spirit of the present application. It is intended that the present application also include such modifications and variations as come within the scope of the appended claims and their equivalents.
Claims (9)
1. A voltage control method is applied to a main control device, and the voltage control method comprises the following steps:
determining a target voltage value, a lower voltage threshold and an upper voltage threshold;
a single signal wire is adopted to send continuous square wave signals to the voltage output device, wherein, each set number of continuous square wave signals is a control period, the set number of continuous square wave signals comprises a first square wave signal with a first duty ratio and/or a second square wave signal with a second duty ratio, the first duty ratio is smaller than the second duty ratio, when the target voltage value is equal to the lower voltage limit threshold, only the first square wave signal is included in the set number of continuous square wave signals, when the target voltage value is equal to the upper voltage threshold, only the second square wave signal is included in the set number of consecutive square wave signals, when the target voltage value is between the lower voltage threshold and the upper voltage threshold, the number of the first square wave signals in the set number of continuous square wave signals satisfies the following formula:
V=（N1*V1+N2*V2）/(N1+N2)；
wherein V is the target voltage value, N1 is the number of first square wave signals in the set number of consecutive square wave signals, N2 is the number of second square wave signals in the set number of consecutive square wave signals, V1 is the lower voltage threshold, and V2 is the upper voltage threshold.
2. The method of claim 1,
when the target voltage value is between the lower voltage threshold and the upper voltage threshold, the second square wave signal is located after the first square wave signal in the set number of consecutive square wave signals.
3. The method of claim 1,
when the target voltage value is between the lower voltage threshold and the upper voltage threshold, the second square wave signal is located before the first square wave signal in the set number of consecutive square wave signals.
4. The method of claim 1, wherein the square wave signal starts with a rising edge.
5. A voltage control method is applied to a voltage output device, and comprises the following steps:
receiving continuous square wave signals through a single signal line;
judging the duty ratio of each square wave signal, and executing the following judgment once for every set number of continuous square wave signals:
if the current duty ratios of the set number of continuous square wave signals are all the first duty ratios, the voltage output device outputs a voltage signal with a voltage lower limit threshold value;
if the current duty ratios of the set number of continuous square wave signals are all second duty ratios, the voltage output device outputs a voltage signal with the value of the voltage upper limit threshold, and the second duty ratios are larger than the first duty ratios;
if the preset number of continuous square wave signals comprise the square wave signals with the first duty ratio and the square wave signals with the second duty ratio, determining the voltage value of the voltage signal output by the voltage output device according to the following formula:
V=（N1*V1+N2*V2）/(N1+N2)；
wherein V is the target voltage value, N1 is the number of first square wave signals in the set number of consecutive square wave signals, N2 is the number of second square wave signals in the set number of consecutive square wave signals, V1 is the lower voltage threshold, and V2 is the upper voltage threshold.
6. A master control device, comprising:
the determining module is used for determining a target voltage value, a lower voltage limit threshold and an upper voltage limit threshold;
the control module is used for sending continuous square wave signals to the voltage output device by adopting a single signal wire, wherein each set number of continuous square wave signals is a control period, the set number of continuous square wave signals comprises a first square wave signal with a first duty ratio and/or a second square wave signal with a second duty ratio, and the first duty ratio is smaller than the second duty ratio, when the target voltage value is equal to the lower voltage limit threshold, only the first square wave signal is included in the set number of continuous square wave signals, when the target voltage value is equal to the upper voltage threshold, only the second square wave signal is included in the set number of consecutive square wave signals, when the target voltage value is between the lower voltage threshold and the upper voltage threshold, the number of the first square wave signals in the set number of continuous square wave signals satisfies the following formula:
V=（N1*V1+N2*V2）/(N1+N2)；
wherein V is the target voltage value, N1 is the number of first square wave signals in the set number of consecutive square wave signals, N2 is the number of second square wave signals in the set number of consecutive square wave signals, V1 is the lower voltage threshold, and V2 is the upper voltage threshold.
7. A voltage output apparatus, comprising:
the receiving module is used for receiving continuous square wave signals through a single signal line;
the output module is used for judging the duty ratio of each square wave signal, and executing the following judgment once for every set number of continuous square wave signals:
if the current duty ratios of the set number of continuous square wave signals are all the first duty ratios, the voltage output device outputs a voltage signal with a voltage lower limit threshold value;
if the current duty ratios of the set number of continuous square wave signals are all second duty ratios, the voltage output device outputs a voltage signal with the value of the voltage upper limit threshold, and the second duty ratios are larger than the first duty ratios;
if the preset number of continuous square wave signals comprise the square wave signals with the first duty ratio and the square wave signals with the second duty ratio, determining the voltage value of the voltage signal output by the voltage output device according to the following formula:
V=（N1*V1+N2*V2）/(N1+N2)；
wherein V is the target voltage value, N1 is the number of first square wave signals in the set number of consecutive square wave signals, N2 is the number of second square wave signals in the set number of consecutive square wave signals, V1 is the lower voltage threshold, and V2 is the upper voltage threshold.
8. The voltage output device according to claim 7, wherein the output module comprises a counter, and the counter is configured to count a total duration of the high states of the consecutive set number N of square wave signals according to a sampling clock signal, so as to obtain a count result M; the output module is specifically configured to determine, according to the counting result M, the number N1 of the square wave signals with the first duty ratio and the number N2 of the square wave signals with the second duty ratio in the preset number of consecutive square wave signals, where:
N1*T1+N2*T2=T0*M；
N1+N2=N；
wherein T1 is a duration of a high level of the square wave signal of the first duty ratio, T2 is a duration of a high level of the square wave signal of the second duty ratio, and T0 is a clock period of a sampling clock signal of the counter.
9. The voltage output device according to claim 7, wherein the output module comprises a counter, the counter is configured to count durations of the high-level states of the consecutive N square-wave signals according to a sampling clock signal, the output module is specifically configured to use, as the number N1 of the square-wave signals with the first duty ratio, the number of square-wave signals with a count value smaller than a first set threshold, and use, as the number N2 of the square-wave signals with the second duty ratio, the number of square-wave signals with a count value larger than a second set threshold, where:
T1≤Th1*T0＜Th2*T0≤T2；
wherein T1 is a duration of a high level of the square wave signal with the first duty ratio, Th1 is the first set threshold, Th2 is the second set threshold, and T0 is a clock period of a sampling clock signal of the counter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111362283.0A CN113885637A (en) | 2021-11-17 | 2021-11-17 | Voltage control method, master control device and voltage output device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111362283.0A CN113885637A (en) | 2021-11-17 | 2021-11-17 | Voltage control method, master control device and voltage output device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113885637A true CN113885637A (en) | 2022-01-04 |
Family
ID=79017852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111362283.0A Pending CN113885637A (en) | 2021-11-17 | 2021-11-17 | Voltage control method, master control device and voltage output device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113885637A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080252277A1 (en) * | 2006-10-02 | 2008-10-16 | Takashi Sase | Digital control switching power-supply device and information processing equipment |
| CN101557167A (en) * | 2009-02-25 | 2009-10-14 | 西南交通大学 | Bifrequency control method of switch power supply and device thereof |
| CN101557168A (en) * | 2009-02-25 | 2009-10-14 | 西南交通大学 | Multi-frequency control method of quasicontinuous working model switch power supply and device thereof |
| CN102655371A (en) * | 2012-05-02 | 2012-09-05 | 常州大学 | Double-pulse cross-cycle modulation method for switching power supply and device thereof |
| CN104883062A (en) * | 2015-06-16 | 2015-09-02 | 重庆邮电大学 | Control method and system for DC/DC converter |
-
2021
- 2021-11-17 CN CN202111362283.0A patent/CN113885637A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080252277A1 (en) * | 2006-10-02 | 2008-10-16 | Takashi Sase | Digital control switching power-supply device and information processing equipment |
| CN101557167A (en) * | 2009-02-25 | 2009-10-14 | 西南交通大学 | Bifrequency control method of switch power supply and device thereof |
| CN101557168A (en) * | 2009-02-25 | 2009-10-14 | 西南交通大学 | Multi-frequency control method of quasicontinuous working model switch power supply and device thereof |
| CN102655371A (en) * | 2012-05-02 | 2012-09-05 | 常州大学 | Double-pulse cross-cycle modulation method for switching power supply and device thereof |
| CN104883062A (en) * | 2015-06-16 | 2015-09-02 | 重庆邮电大学 | Control method and system for DC/DC converter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3326340B1 (en) | Time based equalization for a c-phy 3-phase transmitter | |
| TWI699974B (en) | Multiphase clock data recovery circuit calibration | |
| TWI720008B (en) | Multiphase clock data recovery for a 3-phase interface | |
| US10127167B2 (en) | N-phase signal transition alignment | |
| US9215063B2 (en) | Specifying a 3-phase or N-phase eye pattern | |
| US8279917B2 (en) | Pulse width modulation controller and pulse waveform control method | |
| US20170104607A1 (en) | Methods to avoid i2c void message in i3c | |
| US20150236844A1 (en) | Synchronization signal transmitting device, method thereof and power electronic apparatus having the device | |
| US10333690B1 (en) | Calibration pattern and duty-cycle distortion correction for clock data recovery in a multi-wire, multi-phase interface | |
| US20120126771A1 (en) | Circuitry for detecting a transient | |
| US20160112223A1 (en) | Signal processing device | |
| WO2021036431A1 (en) | Data acquisition system and control method, apparatus, and device therefor, and medium | |
| US20120126761A1 (en) | Circuitry for controlling a voltage | |
| CN112311359B (en) | Pulse width modulation control circuit and control method of pulse width modulation signal | |
| WO2020098349A1 (en) | Clock cycle-based pulse width modulation signal duty cycle multiplication circuit | |
| JPH04222130A (en) | Interference detection circuit | |
| CN113885637A (en) | Voltage control method, master control device and voltage output device | |
| US10721055B2 (en) | Communication device | |
| CN110635854A (en) | Transmission protocol self-adaptive decoding system and method | |
| US11711072B2 (en) | Serial bus redriver with trailing edge boost circuit | |
| US20160254804A1 (en) | Serial data signal edge detection | |
| JP2008166922A (en) | Polarity deciding apparatus and method, and polarity setting apparatus | |
| CN110971539A (en) | MIPI C-PHY signal processing system and method | |
| JPS6076807A (en) | Clock shaping circuit | |
| CN115425953A (en) | Parameter measuring circuit, parameter measuring method, chip and equipment of digital signal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |