CN1148630C - Controller able to elastically gain voltage - Google Patents
Controller able to elastically gain voltage Download PDFInfo
- Publication number
- CN1148630C CN1148630C CNB981259324A CN98125932A CN1148630C CN 1148630 C CN1148630 C CN 1148630C CN B981259324 A CNB981259324 A CN B981259324A CN 98125932 A CN98125932 A CN 98125932A CN 1148630 C CN1148630 C CN 1148630C
- Authority
- CN
- China
- Prior art keywords
- voltage
- pulse
- signal
- width
- input voltage
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Feedback Control In General (AREA)
Abstract
The present invention provides a controller capable of elastically gaining voltage, which comprises a triangular wave generating circuit, a comparator, a direct current level adjusting circuit and a direct current filtering circuit, wherein the triangular wave generating circuit is used for generating a triangular wave signal; the comparator is used for comparing the triangular wave signal and input voltage to generate a pulse width modulation signal; the direct current level adjusting circuit is used for adjusting the direct current level of the pulse width modulation signal; the direct current filtering circuit is used for carrying out direct current filtering to the adjusted pulse width modulation signal for generating direct current output voltage, wherein the output voltage is determined by the output of the direct current level adjusting circuit and the pulse width of the pulse width modulation signal. The wider the pulse width of the pulse width modulation signal is, the higher the output voltage is.
Description
The present invention system provides a kind of voltage-operated device, especially refers to a kind of control device of able to elastically gain voltage.
General computer system is provided with the output voltage that a voltage-operated device is modulated microprocessor.Because the output voltage of microprocessor maintains between 0 to 5V, voltage-operated device just is set in the voltage modulated scope within the 5V, if voltage-operated device includes 6 positions (bit) that are used for controlling voltage, then the voltage of 5V can be split into 64 rank, each rank is 5/64V, therefore the user can increase at every turn or downgrade the output voltage that 5/64V changes microprocessor, to reach different control function.
Though the scope of the Adjustable Output Voltage system of microprocessor is between 0 to 5V, the object of output voltage institute desire control may only need use interval voltages such as 0 to 2V, 3 to 4V or 2 to 5V, and the voltage outside the interval then can not produce the control effect.Interval 0 to 2V being example, when the output voltage of microprocessor be outside the interval just 2 in 5V, the user just can't experience the variation of control, so for the user, has only 0 to 2V to be useful control interval.Change because the user can't experience the control of some part output voltage, so the partial section of output voltage can be wasted.In addition, because 64 rank are that the whole interval of 5V is on average cut apart, so the voltage difference on each rank is fixed.In this case, useful control interval the control that can produce change and will reduce significantly.
Therefore, fundamental purpose of the present invention is to provide a kind of control device of able to elastically gain voltage, it can be defined in the scope of output voltage in the interval that user's interface can experience, make the voltage difference of each rank representative dwindle and dwindle simultaneously along with control interval, so the user not only can avoid the time entering nonsensical control interval in modulation, also modulation voltage more accurately.
A kind of voltage-operated device provided by the invention, this voltage-operated device comprises: (1) one circuit for generating triangular wave, be used for producing a triangular signal, include a squarer, be used for producing a square-wave signal, and an integrating circuit, be used for this square-wave signal is given integration to produce this triangular signal; (2) one comparers are used for this triangular signal and an input voltage are compared to produce a pulse-width signal; (3) one direct current level adjusting circuits are used for adjusting the DC level of this pulse-width signal; And (4) one direct current filtering circuits, be used for that this adjusted pulse-width signal is given DC filtering and produce a direct current output voltage; Wherein, this output voltage system adjusts the output of circuit by this DC level and the pulse width of this pulse-width signal decides, if the pulse width of this pulse-width signal is wide more, then this output voltage is just high more.
Purpose of the present invention, feature, advantage are with details are as follows in conjunction with the embodiments with reference to the accompanying drawings.
Brief Description Of Drawings
Fig. 1 is the circuit diagram of voltage-operated device of the present invention;
Fig. 2 is the voltage pattern of each circuit node of Fig. 1 voltage-operated device;
Fig. 3 displayed map 1 VD is with respect to the variation of input voltage;
Fig. 4 is another embodiment of Fig. 1 comparator circuit;
Fig. 5 is the circuit-formed VD V of Fig. 4
oWith respect to input voltage V
cVariation.
See also Fig. 1 and Fig. 2, Fig. 1 is the circuit diagram of voltage-operated device 10 of the present invention, and Fig. 2 is the voltage pattern of each node of voltage-operated device 10.Voltage-operated device 10 includes a circuit for generating triangular wave 12, is used in V
2End produces a triangular signal 32, one comparator circuits 14, and it includes a comparer A
3Be used for a triangular signal 32 and an input voltage V from the microprocessor (not shown)
cCompare with in V
3End produces a width modulation (Pulse-Width-Modulation) signal 34, one direct current level adjusting circuits 16, and the DC level that is used for adjusting pulse-width signal 34 is with in V
4End produces an adjusted pulse-width signal 36, and a direct current filtering circuit 18, is used for adjusted pulse-width signal 36 is given DC filtering to produce a direct current output voltage V
oCircuit for generating triangular wave 12 includes a squarer 20, is used in V
1End produces a square-wave signal 30, and an integrating circuit 22, is used for square-wave signal 30 is given integration to produce triangular signal 32.
Please refer to Fig. 3, Fig. 3 shows VD V
oWith respect to input voltage V
cVariation.Input voltage V
cTransformable maximum and minimum level are respectively 5V and 0V, and the amplitude of general triangular signal 32 is greater than input voltage V
c Maximum voltage value 5V, for instance, modulate input voltage V when microprocessor allows the user
cScope between 1 to 3V the time, microprocessor must be gone into end 24 via output and be changed variable resistor R
oResistance value, to strengthen the amplitude of triangular signal 32, make relative the narrowing down of pulse width of pulse-width signal 34, with input voltage V
cVariable range be limited within the 2V.In addition, 6 positions (bit) that are used for cutting apart voltage of voltage-operated device can be divided into 64 rank with 2V, so the voltage difference on each rank becomes 1/32V.
DC level is adjusted circuit 16 and is included a resistance R
1An and variable resistor R
2, variable resistor R
2Be connected in microprocessor by another input end 26, be used for adjusting the DC level of pulse-width signal 34.With precedent, because microprocessor allows the user to modulate input voltage V
cScope between 1 to 3V, microprocessor can 26 change variable resistor R via end
2Resistance value, make pulse-width signal 34 transfer to 1 to 3V pulse-width signal 36.Then DC filtering circuit 18 can give pulse-width signal 36 DC filtering to produce VD V
oAs shown in Figure 3, as input voltage V
cDuring for 0V, VD V
oBe 1V; As input voltage V
cDuring for 5V, VD V
cBecome 3V.
See also Fig. 4, Fig. 4 is another embodiment 40 of comparator circuit.In this embodiment, triangular signal 32 is connected in comparer A
3Positive pole, and input voltage V
cBe connected in comparer A
3Negative pole.When triangular signal 32 greater than input voltage V
cThe time, comparer A
3Can produce pulse-width signal 34, because the pulse width and the input voltage V of pulse-width signal 34
cBe inversely proportional to, therefore as input voltage V
cWhen rising gradually, VD V
oCan descend gradually.
See also Fig. 5, Fig. 5 is the VD V that comparator circuit 40 forms
oWith respect to input voltage V
cVariation.Because input voltage V
cWith output voltage V
oBe inversely proportional to, as input voltage V
cDuring for 0V, VD V
oBe 3V; And as input voltage V
cDuring for 5V, VD V
oBecome 1V.
Compared to known voltage-operated device, voltage-operated device 10 of the present invention is limited to the scope of modulation voltage in the interval that user's interface can experience, in this scope, voltage is cut apart, to produce littler voltage difference, so the user not only can avoid the time entering nonsensical modulation areas in modulation, also modulation voltage more accurately.
The above only is preferred embodiment of the present invention, and all equalizations of being done according to claim scope of the present invention change and modify, and all should belong to claim covering scope of the present invention.
Claims (6)
1. voltage-operated device is characterized in that this voltage-operated device includes:
(1) one circuit for generating triangular wave is used for producing a triangular signal, includes a squarer, is used for producing a square-wave signal, and an integrating circuit, is used for this square-wave signal is given integration to produce this triangular signal;
(2) one comparers are used for this triangular signal and an input voltage are compared to produce a pulse-width signal;
(3) one direct current level adjusting circuits are used for adjusting the DC level of this pulse-width signal; And
(4) one direct current filtering circuits are used for that this adjusted pulse-width signal is given DC filtering and produce a direct current output voltage;
Wherein, this output voltage system adjusts the output of circuit by this DC level and the pulse width of this pulse-width signal decides, if the pulse width of this pulse-width signal is wide more, then this output voltage is just high more.
2. voltage-operated device as claimed in claim 1, it is characterized in that transformable maximum of this input voltage and minimum level for fixing, the amplitude of the triangular signal that this circuit for generating triangular wave is exported then can be adjusted to determine the maximum pulse of this pulse-width signal.
3. voltage-operated device as claimed in claim 1 is characterized in that this integrating circuit includes a variable resistor, is used for adjusting the amplitude of this triangular signal.
4. voltage-operated device as claimed in claim 1 is characterized in that this DC level adjustment circuit includes a variable resistor, is used for adjusting the DC level of this pulse-width signal.
5. voltage-operated device as claimed in claim 1, when it is characterized in that this triangular signal less than this input voltage, this comparer can produce this pulse-width signal, the pulse width system of this pulse-width signal is directly proportional with this input voltage, therefore when this input voltage rose gradually, this output voltage also can progressively raise.
6. voltage-operated device as claimed in claim 1, when it is characterized in that this triangular signal greater than this input voltage, this comparer can produce this pulse-width signal, the pulse width system of this pulse-width signal is inversely proportional to this input voltage, therefore when this input voltage rose gradually, this output voltage can progressively descend.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB981259324A CN1148630C (en) | 1998-12-24 | 1998-12-24 | Controller able to elastically gain voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB981259324A CN1148630C (en) | 1998-12-24 | 1998-12-24 | Controller able to elastically gain voltage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1261174A CN1261174A (en) | 2000-07-26 |
| CN1148630C true CN1148630C (en) | 2004-05-05 |
Family
ID=5229423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB981259324A Expired - Fee Related CN1148630C (en) | 1998-12-24 | 1998-12-24 | Controller able to elastically gain voltage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1148630C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100427364B1 (en) | 2002-03-06 | 2004-04-14 | 현대자동차주식회사 | Battery system current measuring system of electric vehicle |
| TWI396389B (en) | 2007-06-04 | 2013-05-11 | Quanta Comp Inc | Complex switch control system |
| JP5644125B2 (en) * | 2010-02-03 | 2014-12-24 | 富士電機株式会社 | Starting method of DC-DC conversion circuit |
| EP4201358A1 (en) * | 2014-11-14 | 2023-06-28 | Boston Scientific Scimed, Inc. | Surgical laser systems and laser devices |
-
1998
- 1998-12-24 CN CNB981259324A patent/CN1148630C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1261174A (en) | 2000-07-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100527578C (en) | Compensation offset adjustment scheme for fast reference voltage transitioning | |
| US20080180075A1 (en) | Current source with indirect load current signal extraction | |
| CN108777903B (en) | Current source circuit and LED drive circuit | |
| US20100244801A1 (en) | Controller for switching regulator, switching regulator and light source | |
| US7170267B1 (en) | Switching regulator with average current mode control | |
| CN207490897U (en) | Voltage driver circuits | |
| CN1148630C (en) | Controller able to elastically gain voltage | |
| CN111953202A (en) | Switching capacitor type power conversion device and operation method thereof | |
| CN1376330A (en) | Dynamic switching frequency control for a digital switching amplifier | |
| CN101929632A (en) | LED light-emitting device and driving method thereof | |
| WO2016026390A1 (en) | Motor control circuit for level laser | |
| CN112333894B (en) | Dimming control circuit and method | |
| JPH08242577A (en) | Switching regulator | |
| US20070271047A1 (en) | Method of power factor correction | |
| JP4871003B2 (en) | Oscillator circuit | |
| JPH07321557A (en) | High frequency signal level detection circuit and high frequency signal level detection method | |
| JP4207114B2 (en) | Current output circuit | |
| JP2767055B2 (en) | How to set the output voltage of the power supply unit | |
| US7630215B2 (en) | Power apparatus and method to provide high voltage | |
| JP2893865B2 (en) | Variable output voltage method for switching power supply | |
| EP0587945A1 (en) | Amplitude regulation circuit | |
| CN105515358B (en) | Current-limiting circuit | |
| KR920006979B1 (en) | Step power controller | |
| JP4375861B2 (en) | DC stabilized power supply control circuit | |
| JPH02111255A (en) | Switching voltage regulator having stable loop gain |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040505 Termination date: 20131224 |