CN212627719U - Full-wave rectifying circuit - Google Patents
Full-wave rectifying circuit Download PDFInfo
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- CN212627719U CN212627719U CN202021844352.2U CN202021844352U CN212627719U CN 212627719 U CN212627719 U CN 212627719U CN 202021844352 U CN202021844352 U CN 202021844352U CN 212627719 U CN212627719 U CN 212627719U
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- control switch
- power supply
- operational amplifier
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- chip microcomputer
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Abstract
The utility model discloses a full wave rectifier circuit relates to rectifier circuit technical field. The full-wave rectification circuit comprises a rectification signal input end and a rectification signal output end, and is characterized by further comprising an operational amplifier, a single chip microcomputer and a control switch with at least two input ends, wherein the rectification signal input end is connected to the reverse input end of the operational amplifier and one input end of the control switch respectively, the output end of the operational amplifier is connected to the other input end of the control switch, the output end of the single chip microcomputer is connected to the control end of the control switch, and the output end of the control switch is connected to the rectification signal output end. The utility model discloses can not produce power loss to the signal.
Description
Technical Field
The utility model relates to a rectifier circuit technical field, concretely relates to full wave rectifier circuit.
Background
Conventionally, alternating current rectification and direct current conversion are realized by the traditional principle of unidirectional conductivity of diodes, and a common circuit utilizing the principle comprises a bridge type full-wave rectification circuit and a double-half-wave rectification circuit, and the rectification circuit has a good rectification effect on high-voltage alternating current. However, as the technology of the microprocessor is developed, the sinusoidal signal with low effective value also needs to be converted into direct current through rectification and then is analyzed and read by the microprocessor. The requirement of the sine signal on a rectifying circuit is high, and the traditional bridge rectifier circuit cannot be used for rectifying the low-voltage sine signal due to the power consumption voltage drop of the diode.
SUMMERY OF THE UTILITY MODEL
The utility model provides a can be to the full wave rectifier circuit of signal production power loss.
In order to solve the technical problem, the utility model provides a technical scheme as follows:
a full-wave rectification circuit comprises a rectification signal input end, a rectification signal output end, an operational amplifier, a single chip microcomputer and a control switch with at least two input ends, wherein the rectification signal input end is connected to the reverse input end of the operational amplifier and one input end of the control switch respectively, the output end of the operational amplifier is connected to the other input end of the control switch, the output end of the single chip microcomputer is connected to the control end of the control switch, and the output end of the control switch is connected to the rectification signal output end.
Further, the non-inverting input end of the operational amplifier is grounded through a first resistor R1, and the positive power supply end of the operational amplifier is connected to a +5V power supply and grounded through a first capacitor; and the negative power supply end of the operational amplifier is connected to a-5V power supply and is grounded through a second capacitor.
Furthermore, the control switch is a CD4053M-7 three-channel digital control analog control switch, and a power supply end of the control switch is connected to a +5V power supply and is grounded through a third capacitor.
Further, the singlechip is an STC12C2052 series singlechip.
Further, a power supply end VCC and a 1RST pin of the single chip microcomputer are both connected to a +5V power supply, the power supply end of the single chip microcomputer is grounded through a fourth capacitor, and the 1RST pin of the single chip microcomputer is grounded through a second resistor R2.
The utility model discloses an among the full wave rectifier circuit, the sinusoidal signal that needs the rectification transmits to two inputs of control switch through two tunnel, and wherein sinusoidal signal of the same kind transmits to another input of control switch after operational amplifier's phase inverter module is handled, and another way direct transmission is to another input of control switch, consequently, transmits the rectification signal waveform of two inputs to control switch all the time and is opposite. The rectangular wave control switch which is sent by the singlechip and has the same frequency with the sinusoidal signal selects the waveforms of the same signal in different stages, namely the positive half shaft which controls the control switch to select the sinusoidal signal is connected to the output end of the control switch every time, so that continuous direct current signals are obtained, and the purpose of rectification is achieved.
The utility model discloses only through the control switch who uses operational amplifier's phase inverter module, singlechip and two at least inputs, can realize sinusoidal signal's full wave rectification purpose, do not have the problem that causes the consumption pressure drop because of using the diode, be applicable to the sinusoidal signal's of low effective value (being less than 5V) full wave rectification.
Drawings
Fig. 1 is a schematic structural diagram of the full-wave rectifier circuit of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
The utility model provides a full wave rectifier circuit, as shown in fig. 1, including rectification signal Input end, rectification signal Output end Output, operational amplifier, singlechip and the control switch who has two at least inputs, rectification signal Input end is connected to operational amplifier's reverse Input end and control switch's an Input respectively, and operational amplifier's Output is connected to another Input of control switch, and the Output of singlechip is connected to control switch's control end, and control switch's Output is connected to rectification signal Output.
The utility model discloses a full wave rectifier circuit principle as follows:
the sinusoidal signal is transmitted to the inverting Input end of the operational amplifier from one path of signal of the Input end, and is accessed to one Input end of the control switch after being processed by the inverter module, and the other path of sinusoidal signal is directly accessed to the other Input end of the control switch. Meanwhile, the generated square wave signal with the same frequency as the sine wave signal is input to the control end of the control switch by the singlechip, and the control switch only selects the sine signal of the positive half shaft to Output through Output at each time, so that the rectification of the low-voltage sine signal is completed, and the low-voltage sine signal can be sent to a post-stage circuit to be processed.
The utility model discloses an in the embodiment, four operational amplifier of LM324 series can be selected to operational amplifier, and the electric current that this model series's operational amplifier consumed is minimum to have the voltage output scope of broad, be fit for the rectification to the sinusoidal signal of low effective value.
Furthermore, because the circuit of the utility model only needs to connect the sine signal into the reverse input end to reversely process the sine signal, therefore, the non-inverting input end of the operational amplifier can be directly grounded through the first resistor R1, and the positive power supply end of the operational amplifier is connected to the +5V power supply and grounded through the first capacitor C40; the negative power supply end of the operational amplifier is connected to a-5V power supply and is grounded through a second capacitor. The first capacitor C40 and the second capacitor C46 are mainly used for providing a more stable power supply for the operational amplifier, and reducing the noise of the operational amplifier coupled to the power supply terminal.
The utility model discloses an embodiment, the optional three channel digital control analog switch who uses CD4053 model of control switch, Input cy are connected to operational amplifier's Output, Input cx lug connection sinusoidal signal's Input, Output cx/cy are connected to the Output of rectification signal.
The singlechip is preferably an STC12C2052 series singlechip.
Furthermore, the utility model provides a singlechip and control switch all adopt +5V mains operated, and are concrete, and the power end of singlechip is connected to +5V power. Specifically, power end VCC and 1RST pin of singlechip are all connected to +5V power, and the power end of singlechip is through third electric capacity C26 ground connection, and the 1RST pin of singlechip is through second resistance R2 ground connection. The power supply terminal of the control switch is connected to the +5V power supply and is grounded via the fourth capacitor C39.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. A full-wave rectification circuit comprises a rectification signal input end and a rectification signal output end, and is characterized by further comprising an operational amplifier, a single chip microcomputer and a control switch with at least two input ends, wherein the rectification signal input end is connected to the reverse input end of the operational amplifier and one input end of the control switch respectively, the output end of the operational amplifier is connected to the other input end of the control switch, the output end of the single chip microcomputer is connected to the control end of the control switch, and the output end of the control switch is connected to the rectification signal output end.
2. The full-wave rectification circuit according to claim 1, wherein a non-inverting input terminal of the operational amplifier is grounded via a first resistor R1, and a positive power supply terminal of the operational amplifier is connected to a +5V power supply and grounded via a first capacitor; and the negative power supply end of the operational amplifier is connected to a-5V power supply and is grounded through a second capacitor.
3. The full-wave rectification circuit according to claim 1, wherein the control switch is a CD4053M-7 three-channel digital control analog control switch, and a power supply end of the control switch is connected to a +5V power supply and is grounded via a third capacitor.
4. The full-wave rectifier circuit of claim 1 wherein the single-chip microcomputer is an STC12C2052 series single-chip microcomputer.
5. The full-wave rectifier circuit according to claim 1, wherein the power supply terminals VCC and 1RST pin of the single chip microcomputer are both connected to a +5V power supply, the power supply terminal of the single chip microcomputer is grounded via a fourth capacitor, and the 1RST pin of the single chip microcomputer is grounded via a second resistor R2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021844352.2U CN212627719U (en) | 2020-08-29 | 2020-08-29 | Full-wave rectifying circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021844352.2U CN212627719U (en) | 2020-08-29 | 2020-08-29 | Full-wave rectifying circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212627719U true CN212627719U (en) | 2021-02-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021844352.2U Active CN212627719U (en) | 2020-08-29 | 2020-08-29 | Full-wave rectifying circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212627719U (en) |
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2020
- 2020-08-29 CN CN202021844352.2U patent/CN212627719U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Full wave rectifier circuit Effective date of registration: 20211101 Granted publication date: 20210226 Pledgee: Overpass Branch of Jinan Rural Commercial Bank Co.,Ltd. Pledgor: BIOBASE BIODUSTRY (SHANDONG) Co.,Ltd. Registration number: Y2021370000122 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220624 Granted publication date: 20210226 Pledgee: Overpass Branch of Jinan Rural Commercial Bank Co.,Ltd. Pledgor: BIOBASE BIODUSTRY (SHANDONG) Co.,Ltd. Registration number: Y2021370000122 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Full-wave rectifier circuit Effective date of registration: 20230206 Granted publication date: 20210226 Pledgee: Overpass Branch of Jinan Rural Commercial Bank Co.,Ltd. Pledgor: BIOBASE BIODUSTRY (SHANDONG) Co.,Ltd. Registration number: Y2023980032056 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230531 Granted publication date: 20210226 Pledgee: Overpass Branch of Jinan Rural Commercial Bank Co.,Ltd. Pledgor: BIOBASE BIODUSTRY (SHANDONG) Co.,Ltd. Registration number: Y2023980032056 |