CN118092570B - Direct-current linear power supply generating circuit with wide voltage and variable rising slope - Google Patents
Direct-current linear power supply generating circuit with wide voltage and variable rising slope Download PDFInfo
- Publication number
- CN118092570B CN118092570B CN202410492562.6A CN202410492562A CN118092570B CN 118092570 B CN118092570 B CN 118092570B CN 202410492562 A CN202410492562 A CN 202410492562A CN 118092570 B CN118092570 B CN 118092570B
- Authority
- CN
- China
- Prior art keywords
- voltage
- circuit
- output
- resistor
- capacitor
- 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
- 230000000630 rising effect Effects 0.000 title claims abstract description 60
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 239000003990 capacitor Substances 0.000 claims description 64
- 238000010586 diagram Methods 0.000 description 14
- 238000012360 testing method Methods 0.000 description 7
- 239000003381 stabilizer Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Landscapes
- Continuous-Control Power Sources That Use Transistors (AREA)
Abstract
The application discloses a direct current linear power supply generating circuit with wide voltage and variable rising slope, which comprises a high voltage input end and a waveform output end, wherein the high voltage input end is connected with the input end of a high voltage conversion XV circuit, the high voltage conversion XV circuit converts the high voltage of the high voltage input end into XV voltage, and the output end of the high voltage conversion XV circuit is respectively connected with the high voltage conversion-XV circuit, the rising waveform generating circuit and an output voltage control circuit; the high-voltage conversion-XV circuit converts XV voltage at the output end of the high-voltage conversion-XV circuit into-XV voltage, and the output end of the high-voltage conversion-XV circuit is connected with the output voltage control circuit; a constant current source is generated by a Wilson current source, and a voltage rising waveform with controllable slope is generated. And the rising waveform is scaled down to a fixed voltage by a scaling down circuit, and the output voltage and the output current are amplified by a voltage control circuit consisting of an NMOS, a high-voltage operational amplifier and a feedback network, so that the rising slope of the output waveform is controllable, and the output voltage is variable.
Description
Technical Field
The application relates to the technical field of electronic device testing, in particular to a direct-current linear power supply generating circuit with wide voltage and variable rising slope.
Background
Programmable power supplies are widely used in highly integrated automated test systems (ATE) or test measurement applications. In the field of integrated circuit test and measurement, programmable power supplies are mainly used for supplying power to chips or modules, and necessary bias conditions are provided for circuit operation.
During integrated circuit testing, it is often necessary to generate a start-up or shut-down waveform at the power port for one millisecond to several hundred milliseconds of response time, thereby simulating various on-off states in the user's use environment. Conventional programmable power supplies or power supplies in ATE are unable to meet the test requirements of the complaint.
The main disadvantage of the traditional programmable power supply is that the rising slope is uncontrollable; the main disadvantage of programmable power supplies in ATE is the poor carrying capacity, typically less than 1A, and the large size, inconvenient to carry around.
In view of the foregoing, there is a need for a dc linear power generation circuit with a wide voltage range and a variable rising slope.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present application proposes a wide-voltage, variable-rise-slope dc linear power supply generating circuit, which solves the technical problem of uncontrollable rise of power supply voltage waveforms in the existing equipment.
The application adopts the following technical scheme for realizing the purposes:
A DC linear power supply generating circuit with wide voltage and variable rising slope comprises a high-voltage input end and a waveform output end, wherein:
The high-voltage input end is connected with the input end of the high-voltage conversion XV circuit, the high-voltage conversion XV circuit converts the high voltage of the high-voltage input end into XV voltage, and the output end of the high-voltage conversion XV circuit is respectively connected with the high-voltage conversion-XV circuit, the rising waveform generation circuit and the output voltage control circuit;
the high-voltage conversion-XV circuit converts XV voltage at the output end of the high-voltage conversion-XV circuit into-XV voltage, and the output end of the high-voltage conversion-XV circuit is connected with the output voltage control circuit;
The rising waveform generating circuit comprises three triodes, wherein the first triode is configured to: the emitter is connected with the output end of the high-voltage conversion XV circuit and the emitter of the second triode, the base electrode is connected with the emitter of the third triode and the base electrode and the collector electrode of the second triode, and the collector electrode is connected with the base electrode of the third triode and is grounded through the sliding resistor; the third transistor is configured to: the collector electrode is grounded through a capacitor; wherein: the common end of the collector electrode of the third triode and the capacitor is a rising slope output end of the rising waveform generating circuit, and the rising slope output end is connected with the output voltage control circuit;
The output voltage control circuit comprises a high-voltage operational amplifier, wherein the high-voltage operational amplifier is configured to:
Enabling the common ground;
the enabling end is grounded through a third capacitor and is supplied by a high-voltage conversion XV circuit
The negative input end is simultaneously connected with one end of a second resistor and one end of a third resistor, the other end of the second resistor is connected with the source electrode of the transistor, and the other end of the third resistor is grounded;
The positive input end is connected with the rising slope output end of the rising waveform generating circuit;
The negative power supply end is grounded through a second capacitor and is powered by the high-voltage transfer-XV circuit;
the positive power supply end is connected with the high-voltage input end and the drain electrode of the transistor at the same time, and the common end of the positive power supply end and the high-voltage input end is grounded through a first capacitor;
the output end is connected with the grid electrode of the transistor through a first resistor;
Wherein X represents a voltage value, the value range is 4.5-5.5, V represents a voltage unit, and the voltage value range of the high-voltage input end is 12-60V.
As an optional solution, the high-voltage to XV circuit includes a linear voltage regulator configured to: the input end is sequentially connected with one end of the first capacitor and the emitter of the triode, the adjusting end is simultaneously connected with one end of the second resistor and one end of the third resistor, and the output end is sequentially connected with the other end of the second resistor and one end of the second capacitor;
The other end of the second capacitor, the other end of the third resistor and the other end of the first capacitor are connected with the input end of the diode, the output end of the diode is sequentially connected with the base electrode of the triode and one end of the first resistor, the other end of the first resistor is simultaneously connected with the high-voltage input end and the collector electrode of the triode, and the common end of the second resistor and the second capacitor is the output end of the high-voltage XV conversion circuit.
As an alternative solution, the linear voltage regulator uses an LM317T chip.
As an optional solution, the high-voltage conversion-XV circuit includes a DC-DC power chip configured to: the CAP+ pin is connected with the CAP-pin through a second capacitor, the GND pin is grounded, the OUT pin is used as an-XV voltage output end in the high-voltage conversion-XV circuit and is grounded through a third capacitor, the LV pin is grounded, and the V+ pin is grounded through a first capacitor; the common end of the V+ pin and the first capacitor is connected with XV voltage.
As an alternative solution, the DC-DC power chip uses an LM2662 chip.
As an optional technical scheme, the power supply circuit further comprises a scaling circuit, wherein the input end of the scaling circuit is connected with the rising slope output end of the rising waveform generating circuit, and the output end of the scaling circuit is connected with the positive input end of a high-voltage operational amplifier in the output voltage control circuit.
As an alternative solution, the scaling circuit is powered by a high voltage to XV circuit.
As an optional solution, the scaling circuit includes an operational amplifier, where the operational amplifier is configured to:
the positive power supply is connected with the XV voltage and grounded through the first capacitor;
The negative power supply is grounded;
The negative input end is connected with the rising slope output end of the rising waveform generating circuit;
The positive input end is connected with the output end and the first resistor;
The output end is sequentially connected with a first resistor, a second resistor and ground in series, and the second resistor is connected with a second capacitor in parallel; and the common end of the second capacitor and the first resistor is used as the output end of the scaling circuit.
The beneficial effects of the application include:
A constant current source is generated by a Wilson current source, and then a voltage rising waveform with controllable slope is generated by utilizing the characteristic that the slope is fixed when the current is fixed when a capacitor is charged. The rising waveform is scaled down to a fixed voltage by a scaling circuit, and then the control of the output voltage and the output current is realized by a voltage control current consisting of an NMOS, a high-voltage operational amplifier and a feedback network, so that the rising slope of the output waveform is controllable and the output voltage is variable; the circuit structure is clear, and the circuit size is smaller, and the problem that the ATE of the traditional testing machine can not be carried is solved.
Other benefits or advantages of the application will be described in detail with reference to specific structures in the detailed description.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the application, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art. Furthermore, it should be understood that the scale of each component in the drawings in this specification is not represented by the scale of actual material selection, but is merely a schematic diagram of structures or positions, in which:
FIG. 1 is a basic functional block diagram of a circuit in the present application;
FIG. 2 is a schematic diagram of a power flow of the high voltage to XV circuit and the high voltage to XV circuit according to the present application;
FIG. 3 is a schematic diagram of a high voltage to 5V circuit in an embodiment;
FIG. 4 is a schematic diagram of a high voltage-to-5V circuit in an embodiment;
FIG. 5 is a schematic diagram of a rising waveform generating circuit according to an embodiment;
FIG. 6 is a schematic diagram of a scaling circuit in an embodiment;
fig. 7 is a schematic diagram of an output voltage control circuit in an embodiment.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the description of the present application, it should be noted that terms such as "top" and "bottom" are used to refer to the present application in which the portion near the upper side is the top and the portion near the lower side is the bottom in the use state; the use of terms such as "first" and "second" is for the purpose of distinguishing between similar elements and not necessarily for the purpose of indicating or implying any particular importance or order of such elements; terms such as "inner", "outer" and "inner and outer" are used to refer to specific contours. The above terms are used only for the convenience of clearly and simply describing the technical solution of the present application and are not to be construed as limiting the present application.
It should be noted that:
the sign "-" in the "-XV circuit" is a mathematical sign, here representing a negative voltage;
the symbol "DC-DC" in the "DC-DC power chip" is a complete meaning to indicate the type of chip;
examples:
In order to overcome the defect that the traditional linear power supply cannot meet the control of a large voltage range and the waveform rising slope, the invention designs and manufactures a direct current linear power supply generating circuit with wide voltage (up to 60V) and variable rising slope based on the technologies of a high-voltage operational amplifier, a high-withstand-voltage power NMOS (N-channel metal oxide semiconductor) tube, a mirror current source and the like, and is used for solving the control problem of the waveform rising of the power supply voltage in the existing equipment.
FIG. 1 is a basic functional block diagram of a circuit in the present application; fig. 2 is a schematic diagram of a power supply flow of the high voltage to XV circuit and the high voltage to XV circuit according to the present application, in this embodiment, with reference to fig. 1 and 2, preferably X is 5, the voltage at the high voltage input terminal is 60V, and the power generation circuit includes a high voltage input terminal and a waveform output terminal, wherein:
The high-voltage input end is connected with the input end of a high-voltage-to-5V circuit, the high-voltage-to-5V circuit converts the high voltage of the high-voltage input end into 5V voltage, and the output end of the high-voltage-to-5V circuit is respectively connected with the high-voltage-to-5V circuit, the rising waveform generating circuit and the output voltage control circuit;
as a possible implementation solution, the main function of the high voltage to 5V circuit is to supply power as part of the internal circuit. The working principle diagram of the high-voltage to 5V circuit is shown in the circuit of FIG. 3, and the circuit mainly comprises an NPN triode, a voltage stabilizing diode, a linear voltage stabilizer and a resistance-capacitance element;
The method comprises the following steps: in the high-voltage to 5V circuit, a linear voltage stabilizer adopts an LM317T chip, and the LM317T chip is configured to: the in pin 3 is sequentially connected with one end of the first capacitor C1 and the emitter 3 of the triode, the ADJ pin 1 is simultaneously connected with one end of the second resistor R2 and one end of the third resistor R3, and the out pin 2 is sequentially connected with the other end of the second resistor R2 and one end of the second capacitor C2;
The other end of the second capacitor C2, the other end of the third resistor R3 and the other end of the first capacitor C1 are connected with the input end of the diode D1, the output end of the diode D1 is sequentially connected with the base electrode 1 of the triode and one end of the first resistor R1, the other end of the first resistor R1 is simultaneously connected with the high-voltage input end and the collector electrode 2 of the triode, and the common end of the second resistor R2 and the second capacitor C2 is the output end of the high-voltage 5V circuit.
The NPN triode and the diode D1 form a voltage reduction network (the diode D1 adopts a voltage stabilizing diode), and the problem of low input voltage range of the linear voltage stabilizer LM317T is solved. And the triode is used for reducing the voltage, so that the heat power consumption can be dispersed, and the junction temperature of the linear voltage stabilizer is prevented from exceeding the range due to overlarge power consumption.
After the circuit stably works, the voltage of the high-voltage input end at the point A is clamped to the regulated voltage V ZT through the first resistor R1 and the diode D1, and the value is the regulated value of the diode D1. A PN junction voltage difference exists between the point B and the point A, so that the voltage of the point B is the stabilized voltage V ZT minus the voltage difference between the base electrode and the emitter electrode of the NPN triode, thereby achieving the purpose of reducing the high voltage input voltage.
The voltage formed at point B satisfies the input voltage range of the linear regulator. The relation between the output voltage V OUT of the linear regulator LM317T and the feedback resistor (the second resistor R2 and the third resistor R3 are feedback resistors) is:
where I ADJ is the current at the ADJ pin, which is very small, about 0.2uA, and can be reduced to:
where V REF is the reference voltage, V REF =1.25v, and the output voltage is about 5V by configuring r3=72Ω, r2=430Ω.
As a possible technical scheme, the working principle diagram of the high-voltage converting-5V circuit is shown in the circuit in fig. 4, and the part is mainly realized by a DC-DC power supply chip LM2662, and converts 5V voltage into-5V voltage; the output end of the power supply is connected with an output voltage control circuit;
The method comprises the following steps: the DC-DC power supply chip LM2662 is configured to: the CAP+ pin 2 is connected with the CAP-pin 4 through a second capacitor C2, the GND pin 3 is grounded, the OUT pin 5 is used as a-5V voltage output end in a high-voltage conversion-5V circuit and is grounded through a third capacitor C3, the LV pin 6 is grounded, and the V+ pin 8 is grounded through a first capacitor C1; the common terminal of the v+ pin 8 and the first capacitor C1 is connected to a voltage of 5V, and the FC pin 1 is not connected in the circuit.
As a possible implementation solution, the main circuit diagram of the rising waveform generating circuit is shown in the circuit in fig. 5, and the part mainly includes a wilson current source and a charging capacitor. The main principle of the part is that when the capacitor is charged, the current flowing through the two ends of the capacitor is in direct proportion to the capacity of the capacitor and the voltage of the two ends of the capacitor;
When the charging current is constant, the capacitance is constant, so the slope of the voltage change on the capacitor is constant. The rising slope of the waveform can be determined by adjusting the charging current and the capacitance value of the capacitor, so that a rising waveform with controllable slope and fixed voltage is generated;
As shown in fig. 5, c-e of the second transistor Q2 is coupled to the emitter of the third transistor, which acts as a feedback resistor in the stabilizing circuit. Since the equivalent resistance between c-e is very large, I OUT can be made highly stable. In fig. 5, the first transistor Q1, the second transistor Q2 and the third transistor Q3 are transistors with completely identical characteristics, so that the current amplification coefficients of the three transistors are the same, and are all represented by β, and the currents of the collectors of the first transistor Q1 and the second transistor Q2 are the same; thus: the relation formula of the current of each point is used for finishing to obtain:
Where I ADJ is a current flowing through the sliding resistor R1 in fig. 5, and I OUT is an output current (indicating a current flowing through the capacitor C1 in fig. 5).
In summary, the function of adjusting the voltage slope can be achieved by adjusting the capacitance values of the sliding resistor R1 and the capacitor C1. In an actual circuit, a plurality of capacitor gears are arranged on the capacitor C1, coarse adjustment of the voltage rising slope is achieved, and fine adjustment of the voltage rising slope is achieved through the sliding resistor R1.
The slope formula is:
In the formula, I ADJ is the current flowing through the resistor R1 in fig. 5, U BE is the voltage difference between the base and the emitter of the first triode Q1 or the voltage difference between the base and the emitter of the second triode Q2 or the voltage difference between the base and the emitter of the third triode Q3, Δ represents the difference, Δu is the waveform voltage variation, and Δt is the waveform rise time variation.
Specifically, in the rising waveform generating circuit,
Including three triodes, first triode Q1 is configured to: the emitter is connected with the output end of the high-voltage-to-5V circuit and the emitter of the first triode Q1, the base electrode is connected with the emitter of the third triode Q3 and the base electrode and the collector electrode of the second triode Q2, and the collector electrode is connected with the base electrode of the third triode Q3 and is grounded through the sliding resistor R1; the third transistor Q3 is configured to: the collector electrode is grounded through a capacitor C1; wherein: the common end of the collector of the third triode Q3 and the capacitor C1 is a rising slope output end of the rising waveform generating circuit, and the rising slope output end is connected with an output voltage control circuit;
As a possible technical scheme, the high-voltage operational amplifier further comprises a scaling circuit, wherein the input end of the scaling circuit is connected with the rising slope output end of the rising waveform generating circuit, and the output end of the scaling circuit is connected with the positive input end of the high-voltage operational amplifier in the output voltage control circuit. The main circuit diagram of the scaling circuit is shown in the circuit of fig. 6, and the scaling circuit is mainly composed of an operational amplifier and a resistor. The operational amplifier is configured as a follower and is configured as a unity gain. The formula of the output voltage V OUT and the positive input voltage V IN of the circuit is as follows:
Specifically, the scaling circuit is powered by a high voltage to 5V circuit. The scaling circuit includes an operational amplifier, and in fig. 6, the operational amplifier is configured to:
the pin 7 is used as a positive power end of the operational amplifier, is connected with 5V voltage and is grounded through the first capacitor C1;
Pin 4 is used as the negative power supply end of the operational amplifier and grounded;
Pin 2 is used as the negative input end of the operational amplifier, and the rising slope output end of the rising waveform generating circuit is connected, wherein the voltage is V IN;
Pin 3 is used as the positive input end of the operational amplifier, and is connected with pin 6 and the first resistor R1;
The pin 6 is used as an output end of the operational amplifier and is sequentially connected with a first resistor R1, a second resistor R2 and ground in series, and the second resistor R2 is connected with a second capacitor C2 in parallel; and the common terminal of the second capacitor C2 and the first resistor R1 is used as the output terminal of the scaling circuit, and outputs the voltage V OUT.
As a possible implementation solution, the output voltage control circuit is shown in the circuit in fig. 7, and the output voltage control circuit mainly includes an NMOS power tube, a high voltage operational amplifier, and a feedback network. After the circuit works stably, the operational amplifier works under the deep negative feedback state, and is obtained according to the theory analysis of 'virtual short and virtual break', and the formula of the output voltage V OUT of the output voltage control circuit is as follows:
Wherein V IN is the positive input terminal voltage of the high-voltage operational amplifier;
Therefore, the circuit structure can amplify the output voltage in the equal proportion in fig. 6, and the output slope of the circuit structure is fixed because the slope is fixed, so that the function of adjusting the output slope is realized. By changing the proportional relation of the second resistor R2 and the third resistor R3, the output voltage controls the maximum value of the output voltage V OUT of the electric.
Specifically, as shown in fig. 7: in the output voltage control circuit, a high voltage operational amplifier is included, the high voltage operational amplifier being configured to:
Pin 1 is used as an enabling common end of the high-voltage operational amplifier and is grounded;
pin 8 is used as the enabling end of the high voltage operational amplifier, is grounded through the third capacitor C3 and is powered by the high voltage to 5V circuit
The pin 2 is used as a negative input end of the high-voltage operational amplifier and is simultaneously connected with one end of a second resistor R2 and one end of a third resistor R3, the other end of the second resistor R2 is connected with a source electrode of a transistor, and the other end of the third resistor R3 is grounded;
The pin 3 is used as a positive input end of the high-voltage operational amplifier and can be connected with a rising slope output end of the rising waveform generating circuit or an output end of the scaling circuit, and the voltage is V IN;
pin 4 is used as the negative power supply end of the high-voltage operational amplifier, is grounded through a second capacitor C2 and is powered by the high-voltage-to-5V circuit;
The pin 7 is used as a positive power end of the high-voltage operational amplifier, the positive power end is connected with the high-voltage input end and the drain electrode of the transistor at the same time, and the common end of the positive power end and the high-voltage input end is grounded through a first capacitor;
The pin 6 is used as an output end of the high-voltage operational amplifier and is connected with the grid electrode of the transistor through the first resistor R1;
in summary, the main principle of the output rising waveform control function is: a constant current source is generated by a Wilson current source, and then a voltage rising waveform with controllable slope is generated by utilizing the characteristic that the slope is fixed when the current is fixed when a capacitor is charged. The rising waveform is scaled down to a fixed voltage by a scaling circuit, and the control of the output voltage and the output current is realized by a voltage control current consisting of an NMOS, a high-voltage operational amplifier and a feedback network, so that the direct-current linear power supply generating circuit with controllable rising slope of the output waveform and variable rising slope of the output voltage is realized.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (8)
1. The utility model provides a wide voltage, variable direct current linear power supply generating circuit of rising slope, its characterized in that, power supply generating circuit includes high voltage input and waveform output, wherein:
The high-voltage input end is connected with the input end of the high-voltage conversion XV circuit, the high-voltage conversion XV circuit converts the high voltage of the high-voltage input end into XV voltage, and the output end of the high-voltage conversion XV circuit is respectively connected with the high-voltage conversion-XV circuit, the rising waveform generation circuit and the output voltage control circuit;
the high-voltage conversion-XV circuit converts XV voltage at the output end of the high-voltage conversion-XV circuit into-XV voltage, and the output end of the high-voltage conversion-XV circuit is connected with the output voltage control circuit;
The rising waveform generating circuit comprises three triodes, wherein the first triode is configured to: the emitter is connected with the output end of the high-voltage conversion XV circuit and the emitter of the second triode, the base electrode is connected with the emitter of the third triode and the base electrode and the collector electrode of the second triode, and the collector electrode is connected with the base electrode of the third triode and is grounded through the sliding resistor; the third transistor is configured to: the collector electrode is grounded through a capacitor; wherein: the common end of the collector electrode of the third triode and the capacitor is a rising slope output end of the rising waveform generating circuit, and the rising slope output end is connected with the output voltage control circuit;
The output voltage control circuit comprises a high-voltage operational amplifier, wherein the high-voltage operational amplifier is configured to:
Enabling the common ground;
The enabling end is grounded through a third capacitor and is powered by the high-voltage XV conversion circuit;
the negative input end is simultaneously connected with one end of a second resistor and one end of a third resistor, the other end of the second resistor is connected with the source electrode of the transistor, and the other end of the third resistor is grounded;
The positive input end is connected with the rising slope output end of the rising waveform generating circuit;
The negative power supply end is grounded through a second capacitor and is powered by the high-voltage transfer-XV circuit;
the positive power supply end is connected with the high-voltage input end and the drain electrode of the transistor at the same time, and the common end of the positive power supply end and the high-voltage input end is grounded through a first capacitor;
the output end is connected with the grid electrode of the transistor through a first resistor;
Wherein X represents a voltage value, the value range is 4.5-5.5, V represents a voltage unit, and the voltage value range of the high-voltage input end is 12-60V.
2. The wide voltage, variable rise slope dc linear power supply generating circuit of claim 1, wherein said high voltage to XV circuit comprises a linear voltage regulator configured to: the input end is sequentially connected with one end of the first capacitor and the emitter of the triode, the adjusting end is simultaneously connected with one end of the second resistor and one end of the third resistor, and the output end is sequentially connected with the other end of the second resistor and one end of the second capacitor;
The other end of the second capacitor, the other end of the third resistor and the other end of the first capacitor are connected with the input end of the diode, the output end of the diode is sequentially connected with the base electrode of the triode and one end of the first resistor, the other end of the first resistor is simultaneously connected with the high-voltage input end and the collector electrode of the triode, and the common end of the second resistor and the second capacitor is the output end of the high-voltage XV conversion circuit.
3. The wide voltage, variable rise slope dc linear power supply generating circuit of claim 2 wherein the linear voltage regulator is an LM317T chip.
4. The wide voltage, variable rise slope DC linear power supply generating circuit of claim 1, wherein said high voltage turn-XV circuit comprises a DC-DC power supply chip configured to: the CAP+ pin is connected with the CAP-pin through a second capacitor, the GND pin is grounded, the OUT pin is used as an-XV voltage output end in the high-voltage conversion-XV circuit and is grounded through a third capacitor, the LV pin is grounded, and the V+ pin is grounded through a first capacitor; the common end of the V+ pin and the first capacitor is connected with XV voltage.
5. The wide voltage, variable rise slope DC linear power supply generating circuit of claim 4 wherein said DC-DC power supply chip is an LM2662 chip.
6. The wide voltage, up slope variable dc linear power supply generating circuit of claim 1, further comprising a scaling circuit having an input connected to a up slope output of the up waveform generating circuit and an output connected to a positive input of a high voltage operational amplifier in the output voltage control circuit.
7. The wide voltage, up-slope variable dc linear power supply generating circuit of claim 6 wherein said scaling down circuit is powered by a high voltage to XV circuit.
8. The wide voltage, up-slope variable dc linear power supply generating circuit of claim 6, wherein the scaling circuit comprises an operational amplifier configured to:
the positive power supply is connected with the XV voltage and grounded through the first capacitor;
The negative power supply is grounded;
The negative input end is connected with the rising slope output end of the rising waveform generating circuit;
The positive input end is connected with the output end and the first resistor;
The output end is sequentially connected with a first resistor, a second resistor and ground in series, and the second resistor is connected with a second capacitor in parallel; and the common end of the second capacitor and the first resistor is used as the output end of the scaling circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410492562.6A CN118092570B (en) | 2024-04-23 | 2024-04-23 | Direct-current linear power supply generating circuit with wide voltage and variable rising slope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410492562.6A CN118092570B (en) | 2024-04-23 | 2024-04-23 | Direct-current linear power supply generating circuit with wide voltage and variable rising slope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118092570A CN118092570A (en) | 2024-05-28 |
| CN118092570B true CN118092570B (en) | 2024-07-02 |
Family
ID=91163359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410492562.6A Active CN118092570B (en) | 2024-04-23 | 2024-04-23 | Direct-current linear power supply generating circuit with wide voltage and variable rising slope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118092570B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115700975A (en) * | 2022-11-11 | 2023-02-07 | 广州金升阳科技有限公司 | Control circuit and control method of switching power supply |
| CN118100644A (en) * | 2024-04-23 | 2024-05-28 | 成都芯正微电子科技有限公司 | Direct-current linear power supply generating circuit with variable wide voltage and falling slope |
| CN118092572A (en) * | 2024-04-23 | 2024-05-28 | 成都芯正微电子科技有限公司 | Linear power supply generating circuit with variable wide voltage and output waveform |
| CN118092571A (en) * | 2024-04-23 | 2024-05-28 | 成都芯正微电子科技有限公司 | Portable programmable direct-current linear power supply generating circuit with variable slope |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6025704A (en) * | 1998-04-23 | 2000-02-15 | Trilectron Industries, Inc. | Power supply with programmable voltage slew rate and method |
| KR101162951B1 (en) * | 2010-09-13 | 2012-07-06 | 단국대학교 산학협력단 | Slop compensation circuit for boost converter |
| CN102033562B (en) * | 2010-12-03 | 2012-07-25 | 中国航天科技集团公司第九研究院第七七一研究所 | Linear compensated RC charging structure |
| US9594387B2 (en) * | 2011-09-19 | 2017-03-14 | Texas Instruments Incorporated | Voltage regulator stabilization for operation with a wide range of output capacitances |
| CN102419608B (en) * | 2011-12-07 | 2013-11-20 | 西安启芯微电子有限公司 | Soft start circuit based on feedback voltage clamping soft start signal |
| US9509215B2 (en) * | 2012-10-31 | 2016-11-29 | Cree, Inc. | Dual mode power supply controller with charge balance multipliers and charge balance multiplier circuits |
| KR101796811B1 (en) * | 2013-05-23 | 2017-11-13 | 매그나칩 반도체 유한회사 | Ramp citcuit and dc-dc converter thereof |
| CN209030101U (en) * | 2018-11-23 | 2019-06-25 | 武汉大学 | A kind of energy back feed device based on Boost flyback booster circuit |
-
2024
- 2024-04-23 CN CN202410492562.6A patent/CN118092570B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115700975A (en) * | 2022-11-11 | 2023-02-07 | 广州金升阳科技有限公司 | Control circuit and control method of switching power supply |
| CN118100644A (en) * | 2024-04-23 | 2024-05-28 | 成都芯正微电子科技有限公司 | Direct-current linear power supply generating circuit with variable wide voltage and falling slope |
| CN118092572A (en) * | 2024-04-23 | 2024-05-28 | 成都芯正微电子科技有限公司 | Linear power supply generating circuit with variable wide voltage and output waveform |
| CN118092571A (en) * | 2024-04-23 | 2024-05-28 | 成都芯正微电子科技有限公司 | Portable programmable direct-current linear power supply generating circuit with variable slope |
Also Published As
| Publication number | Publication date |
|---|---|
| CN118092570A (en) | 2024-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN118100644B (en) | Direct-current linear power supply generating circuit with variable wide voltage and falling slope | |
| CN100514249C (en) | Band-gap reference source produce device | |
| CN118092572B (en) | Linear power supply generating circuit with variable wide voltage and output waveform | |
| CN118092571B (en) | Portable programmable direct-current linear power supply generating circuit with variable slope | |
| CN101660928A (en) | Two-terminal semiconductor sensor device | |
| CN103383585A (en) | Wide input range and ultra low temperature drift band gap reference voltage source | |
| CN102841629A (en) | Bipolar complementary metal oxide semiconductor (BiCMOS) current-type reference circuit | |
| KR20040111176A (en) | Constant voltage generation and electronic equipment using the same | |
| CN100417035C (en) | Detecting circuit of wide dynamic range supplied by small emitter | |
| CN101387557A (en) | Temperature sensing circuit and electronic device using same | |
| CN103631306A (en) | Low-temperature coefficient current source reference circuit | |
| TWI502304B (en) | Bandgap reference voltage generating circuit and electronic system using the same | |
| CN106055002A (en) | Band-gap reference circuit with low voltage output | |
| CN105974996A (en) | Reference voltage source | |
| CN110231851A (en) | Output voltage compensating circuit, method, voltage regulator circuit and display device | |
| CN105955391A (en) | Band-gap reference voltage generation method and circuit | |
| CN103440009B (en) | Start circuit and voltage stabilizing circuit with start circuit | |
| CN107831819A (en) | A kind of reference voltage source and the reference current source for including it | |
| CN106357107A (en) | Voltage regulating circuit and programmable power supply | |
| CN107704005B (en) | Negative voltage linear stable | |
| CN103365330A (en) | Reference voltage/current generation device | |
| CN103324232A (en) | Voltage reference circuit | |
| CN118092570B (en) | Direct-current linear power supply generating circuit with wide voltage and variable rising slope | |
| CN103926967B (en) | Low-voltage and low-power-consumption reference voltage source and low reference voltage generating circuit | |
| CN101414197B (en) | Wide input CMOS band-gap reference circuit structure |
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 | ||
| GR01 | Patent grant |