CN211506202U - Integrated chip with voltage stabilizing circuit - Google Patents
Integrated chip with voltage stabilizing circuit Download PDFInfo
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- CN211506202U CN211506202U CN201922348464.2U CN201922348464U CN211506202U CN 211506202 U CN211506202 U CN 211506202U CN 201922348464 U CN201922348464 U CN 201922348464U CN 211506202 U CN211506202 U CN 211506202U
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Abstract
The utility model relates to a take voltage stabilizing circuit's integrated chip, this integrated chip includes: the device comprises a processor module, a voltage transformation input module, a slow start module, a voltage stabilization module, a constant current output module and an output detection module; after the variable voltage input module provides input voltage, the slow start module is suitable for controlling the delay time of the input voltage reaching a preset value, and after the voltage is stabilized by the voltage stabilizing module, the constant current output module performs constant current regulation on the input voltage so as to output constant current to a load; the output detection module detects the output current of the constant current output module, and when the output current exceeds a current threshold set by the processor module, the processor module is suitable for controlling the voltage transformation input module to stop inputting voltage; the utility model discloses an input voltage to adjustable range carries out constant current output after the steady voltage of starting slowly to monitor output current, in time cut off the power supply at the load abnormal during operation, realized protection circuit's function.
Description
Technical Field
The utility model relates to an integrated chip field especially relates to a take voltage stabilizing circuit's integrated chip.
Background
Most of the existing integrated chips work in a constant-current driving mode, the long-term stability of current is usually used as a performance index for measuring a constant-current power supply, but the traditional integrated chips have the problems of transient current spikes, exceeding allowable driving current and the like in the working process, and when the output end of the integrated chip provides voltage for a load, the generated current is unstable (too high or too low) to influence the service life of equipment, the safety of the equipment and the like.
Therefore, it is desirable to develop a new integrated chip with a voltage regulator circuit to solve the above problems.
Disclosure of Invention
The utility model aims at providing a take voltage stabilizing circuit's integrated chip to current instability causes the problem of equipment safety when overcoming traditional integrated chip and providing voltage for the load.
In order to solve the technical problem, the utility model provides a take voltage stabilizing circuit's integrated chip, it includes: the device comprises a processor module, a voltage transformation input module, a slow start module, a voltage stabilization module, a constant current output module and an output detection module; the voltage transformation input module is electrically connected with the processor module, the voltage transformation input module is electrically connected with the slow start module, the slow start module is electrically connected with the voltage stabilization module, the voltage stabilization module is electrically connected with the constant current output module, and the constant current output module is electrically connected with the output detection module; after the variable voltage input module provides input voltage, the slow start module is suitable for controlling the delay time of the input voltage reaching a preset value, and after the voltage is stabilized by the voltage stabilizing module, the constant current output module performs constant current regulation on the input voltage so as to output constant current to a load; the output detection module detects the output current of the constant current output module, and when the output current exceeds a current threshold set by the processor module, the processor module is suitable for controlling the voltage transformation input module to stop inputting voltage.
Further, the voltage transformation input module adjusts the power supply voltage through a reference voltage source chip to obtain the input voltage.
Further, the voltage stabilization module includes: a triode, a voltage regulator tube and a voltage comparator; the input voltage is fed back and amplified by the triode, and is output to the input end of the constant current output module by the voltage comparator after being stabilized by the voltage stabilizing tube.
Further, the constant current output module includes: a constant current output circuit provided with an operational amplifier and a field effect tube; and after the constant current output circuit operates and amplifies the input voltage through the operational amplifier, the field effect tube outputs constant current.
Further, the output detection module includes: an output detection circuit; the output detection circuit is suitable for detecting the output current of the constant current output module through a current detection chip.
Further, the transformation input module comprises: the on-off tube controls the reference voltage source chip to work; the on-off pipe is electrically connected with the processor module; the processor module is suitable for controlling the on-off of the on-off tube so as to control the reference voltage source chip to carry out charging and discharging.
Further, the integrated chip with the voltage stabilizing circuit comprises: the display module is electrically connected with the processor module; the display module is suitable for displaying voltage and current data in real time.
Further, the integrated chip with the voltage stabilizing circuit further comprises: the alarm module is electrically connected with the processor module; when the output current exceeds the current threshold set by the processor module, the processor module controls the alarm module to perform sound-light alarm.
Further, the alarm module includes: and the buzzer and the light-emitting diode are electrically connected with the processor module.
The beneficial effects of the utility model are that, the utility model discloses a constant current output after carrying out slow start steady voltage to adjustable range's input voltage to monitor output current, in time cut off the power supply when load abnormal operation, realized the function of protection circuit when guaranteeing high stability, high accuracy constant current drive.
Drawings
The present invention will be further explained with reference to the drawings and examples.
FIG. 1 is a schematic block diagram of an integrated chip with a voltage regulator circuit according to the present invention;
fig. 2 is a circuit diagram of a processor module of the present invention;
fig. 3 is a circuit diagram of the transformer input module of the present invention;
fig. 4 is a circuit diagram of the constant current output module of the present invention.
In the figure: operational amplifier U1, field effect transistor M1.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
Example 1
FIG. 1 is a schematic block diagram of an integrated chip with a voltage regulator circuit according to the present invention;
fig. 2 is a circuit diagram of a processor module of the present invention.
In this embodiment, as shown in fig. 1 and fig. 2, the present embodiment provides an integrated chip with a voltage regulator circuit, which includes: the device comprises a processor module, a voltage transformation input module, a slow start module, a voltage stabilization module, a constant current output module and an output detection module; the voltage transformation input module is electrically connected with the processor module, the voltage transformation input module is electrically connected with the slow start module, the slow start module is electrically connected with the voltage stabilization module, the voltage stabilization module is electrically connected with the constant current output module, and the constant current output module is electrically connected with the output detection module; after the variable voltage input module provides input voltage, the slow start module is suitable for controlling the delay time of the input voltage reaching a preset value, and after the voltage is stabilized by the voltage stabilizing module, the constant current output module performs constant current regulation on the input voltage so as to output constant current to a load; the output detection module detects the output current of the constant current output module, and when the output current exceeds a current threshold set by the processor module, the processor module is suitable for controlling the voltage transformation input module to stop inputting voltage.
In fig. 1, the broken line indicates an energy supply line, and the solid line indicates a control line.
In this embodiment, as shown in fig. 2, the processor module may be, but is not limited to, an STC12C5a60S2 single chip microcomputer.
In this embodiment, the input voltage in the adjustable range is subjected to constant current output after being subjected to slow start and voltage stabilization, the output current is monitored, and power supply is cut off in time when the load works abnormally, so that the function of protecting the circuit when high-stability and high-precision constant current driving is ensured is realized.
Fig. 3 is a circuit diagram of the transformer input module of the present invention.
In order to adjust the input voltage, as shown in fig. 3, the transformer input module adjusts the supply voltage through a reference voltage source chip (in the embodiment, an ADR01 type reference voltage source chip) to obtain the input voltage.
In this embodiment, the reference voltage outputted by the reference voltage source chip (in this embodiment, the ADR01 type reference voltage source chip is used) is inverted and divided to obtain a stable and adjustable input voltage, the resistors in fig. 3 all use low noise and low temperature drift resistors, and filter capacitors are respectively added when the input end, the output end and the resistors of the inverter U2 are divided.
In order to avoid that a large surge current can be generated in the circuit due to the existence of a large amount of capacitors at the moment of starting the circuit so as to seriously affect the safety of the circuit, the slow start circuit is suitable for controlling the delay time of the input voltage reaching the preset value.
In this embodiment, a slow start chip (in this embodiment, an LM317 chip) is provided in the slow start circuit to control the delay time of the input voltage reaching a preset value.
In order to regulate an input voltage, the voltage regulation module includes: a triode (a TIP127 type triode is adopted in the embodiment), a voltage regulator tube (a 1N4728A type voltage regulator tube is adopted in the embodiment), and a voltage comparator (an LM358 type voltage comparator is adopted in the embodiment); the input voltage is fed back and amplified by the triode, and is output to the input end of the constant current output module by the voltage comparator after being stabilized by the voltage stabilizing tube.
Fig. 4 is a circuit diagram of the constant current output module of the present invention.
In order to output a constant current, as shown in fig. 4, the constant current output module includes: a constant current output circuit provided with an operational amplifier U1 (an OPA227 type operational amplifier is adopted in the present embodiment), a field effect transistor M1 (an IRF540N type field effect transistor is adopted in the present embodiment); after the constant current output circuit operates and amplifies the input voltage through the operational amplifier U1, the field effect transistor M1 outputs a constant current.
In the present embodiment, V is shown in FIG. 4DDFor power supply, VrFor input voltage, R5Is a current limiting resistor, R0For current sampling of the resistor, I0To flow through a sampling resistor R0When the field effect transistor M1 adopts source electrode output, and normally works (namely when constant current is output), the input end (K end) of the control signal is at high level, and the triode Q1Cutoff, I0Is a constant current; when the control signal input terminal (K terminal) is at low level, threePolar tube Q1The grid voltage of the field effect transistor M1 is pulled down by conduction to control the circuit to have no current output.
In order to monitor the output current and ensure the normal operation of the integrated chip, the output detection module comprises: an output detection circuit; the output detection circuit is adapted to detect the output current of the constant current output module through a current detection chip (in the embodiment, an INA138 type current detection chip is adopted).
In order to be able to control the input of the input voltage, the transforming input module comprises: the on-off tube controls the reference voltage source chip to work; the on-off pipe is electrically connected with the processor module; the processor module is suitable for controlling the on-off of the on-off tube so as to control the reference voltage source chip to carry out charging and discharging.
In order to facilitate data presentation, the integrated chip with the voltage stabilizing circuit comprises: the display module is electrically connected with the processor module; the display module is suitable for displaying voltage and current data in real time.
In order to give an alarm in time when the integrated chip abnormally works, the integrated chip with the voltage stabilizing circuit further comprises: the alarm module is electrically connected with the processor module; when the output current exceeds the current threshold set by the processor module, the processor module controls the alarm module to perform sound-light alarm.
Specifically, the alarm module includes: and the buzzer and the light-emitting diode are electrically connected with the processor module.
To sum up, the utility model discloses an input voltage to adjustable range carries out constant current output after the steady voltage of slow start to monitor output current, in time cut off the power supply at load abnormal during operation, realized the function of protection circuit when guaranteeing high stability, high accuracy constant current drive.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (9)
1. An integrated chip with a voltage stabilizing circuit, comprising:
the device comprises a processor module, a voltage transformation input module, a slow start module, a voltage stabilization module, a constant current output module and an output detection module; wherein
The variable voltage input module is electrically connected with the processor module, the variable voltage input module is electrically connected with the slow start module, the slow start module is electrically connected with the voltage stabilizing module, the voltage stabilizing module is electrically connected with the constant current output module, and the constant current output module is electrically connected with the output detection module;
after the variable voltage input module provides input voltage, the slow start module is suitable for controlling the delay time of the input voltage reaching a preset value, and after the voltage is stabilized by the voltage stabilizing module, the constant current output module performs constant current regulation on the input voltage so as to output constant current to a load;
the output detection module detects the output current of the constant current output module, and when the output current exceeds a current threshold set by the processor module, the processor module is suitable for controlling the voltage transformation input module to stop inputting voltage.
2. The integrated chip with voltage regulator circuit of claim 1,
the voltage transformation input module regulates the power supply voltage through a reference voltage source chip to obtain the input voltage.
3. The integrated chip with voltage regulator circuit of claim 1,
the voltage stabilization module includes: a triode, a voltage regulator tube and a voltage comparator;
the input voltage is fed back and amplified by the triode, and is output to the input end of the constant current output module by the voltage comparator after being stabilized by the voltage stabilizing tube.
4. The integrated chip with voltage regulator circuit of claim 1,
the constant current output module comprises: a constant current output circuit provided with an operational amplifier and a field effect tube;
and after the constant current output circuit operates and amplifies the input voltage through the operational amplifier, the field effect tube outputs constant current.
5. The integrated chip with voltage regulator circuit of claim 1,
the output detection module includes: an output detection circuit;
the output detection circuit is suitable for detecting the output current of the constant current output module through a current detection chip.
6. The integrated chip with voltage regulator circuit of claim 2,
the voltage transformation input module comprises: the on-off tube controls the reference voltage source chip to work;
the on-off pipe is electrically connected with the processor module;
the processor module is suitable for controlling the on-off of the on-off tube so as to control the reference voltage source chip to carry out charging and discharging.
7. The integrated chip with voltage regulator circuit of claim 1,
the integrated chip with the voltage stabilizing circuit comprises: the display module is electrically connected with the processor module;
the display module is suitable for displaying voltage and current data in real time.
8. The integrated chip with voltage regulator circuit of claim 1,
the integrated chip with the voltage stabilizing circuit further comprises: the alarm module is electrically connected with the processor module;
when the output current exceeds the current threshold set by the processor module, the processor module controls the alarm module to perform sound-light alarm.
9. The integrated chip with voltage regulator circuit of claim 8,
the alarm module includes: and the buzzer and the light-emitting diode are electrically connected with the processor module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922348464.2U CN211506202U (en) | 2019-12-24 | 2019-12-24 | Integrated chip with voltage stabilizing circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922348464.2U CN211506202U (en) | 2019-12-24 | 2019-12-24 | Integrated chip with voltage stabilizing circuit |
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| CN211506202U true CN211506202U (en) | 2020-09-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113341214A (en) * | 2021-07-22 | 2021-09-03 | 深圳市江芯电子科技有限公司 | Microprocessor power supply voltage monitoring system |
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2019
- 2019-12-24 CN CN201922348464.2U patent/CN211506202U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113341214A (en) * | 2021-07-22 | 2021-09-03 | 深圳市江芯电子科技有限公司 | Microprocessor power supply voltage monitoring system |
| CN113341214B (en) * | 2021-07-22 | 2023-09-08 | 深圳市江芯电子科技有限公司 | Microprocessor power supply voltage monitoring system |
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