CN112383232A - Output-controllable six-time voltage rectifying circuit - Google Patents

Output-controllable six-time voltage rectifying circuit Download PDF

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Publication number
CN112383232A
CN112383232A CN202011109289.2A CN202011109289A CN112383232A CN 112383232 A CN112383232 A CN 112383232A CN 202011109289 A CN202011109289 A CN 202011109289A CN 112383232 A CN112383232 A CN 112383232A
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China
Prior art keywords
voltage
diode
circuit
output
capacitor
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Pending
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CN202011109289.2A
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Chinese (zh)
Inventor
贾丹丹
孙帮东
刘立华
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China North Industries Group Corp No 214 Research Institute Suzhou R&D Center
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China North Industries Group Corp No 214 Research Institute Suzhou R&D Center
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Priority to CN202011109289.2A priority Critical patent/CN112383232A/en
Publication of CN112383232A publication Critical patent/CN112383232A/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
    • H02M7/10—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode arranged for operation in series, e.g. for multiplication of voltage
    • H02M7/103—Containing passive elements (capacitively coupled) which are ordered in cascade on one source
    • H02M7/106—With physical arrangement details
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Rectifiers (AREA)

Abstract

The invention discloses an output controllable six-time voltage rectifying circuit, which comprises a square wave signal generating circuit and a six-time voltage rectifying circuit; the square wave signal generating circuit comprises a first Schmitt trigger, an eighth capacitor and a fourth resistor; the six-time voltage rectifying circuit comprises second to sixth Schmitt triggers, second to sixth diodes and second to sixth capacitors; the input end of the second Schmitt trigger is also connected to the output end of the AND gate; and a cathode point F of a sixth diode positioned at the tail end of the series circuit is connected with the anode of a seventh diode, and the cathode of the seventh diode outputs a voltage-multiplying signal. The circuit of the invention has controllable output, is provided with a boost signal control end, can control the output of voltage-multiplying signals, and realizes the control of the output voltage-multiplying signals under the condition of no power failure; the square wave signal generating circuit can improve the immunity of circuit design, thereby improving the reliability.

Description

Output-controllable six-time voltage rectifying circuit
Technical Field
The invention belongs to the technical field of voltage-multiplying rectifying circuits, and designs an output-controllable six-time voltage rectifying circuit with a Schmitt trigger.
Background
The voltage-doubling rectification can 'rectify' a lower alternating voltage into a higher direct voltage by using a rectification diode with lower withstand voltage and a capacitor. In some places where high voltage and small current are needed, a voltage doubling rectifying circuit is often used. Generally, a voltage-doubling rectifying circuit is divided into a voltage-doubling rectifying circuit, a voltage-doubling rectifying circuit and a voltage-doubling rectifying circuit according to the output voltage which is multiplied by the input voltage.
In the prior art, once the voltage-multiplying signal is started to be output, the voltage-multiplying signal cannot be controlled to stop, and in practical application, for example, some fuse control circuits often need not to output the voltage-multiplying signal under the condition of no power interruption so as to meet the requirement of safety design.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide the six-time voltage-multiplying rectifying circuit with controllable output, and the output of the voltage-multiplying signal can be controlled.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a six-time voltage rectifying circuit with controllable output comprises a square wave signal generating circuit and a six-time voltage rectifying circuit;
the square wave signal generating circuit comprises a first Schmitt trigger, an eighth capacitor and a fourth resistor; the input end of the first Schmitt trigger is grounded through an eighth capacitor, a fourth resistor is connected between the input end and the output end of the first Schmitt trigger, and the output end of the first Schmitt trigger is connected to the other input end of the AND gate; one path of input signal sykz of the AND gate is a boosting control signal, and the output end of the AND gate is connected to the six-time voltage rectifying circuit;
the six-time voltage rectifying circuit comprises second to sixth Schmitt triggers, second to sixth diodes and second to sixth capacitors; the second to sixth schmitt triggers are sequentially connected in series to the common junction b, c, d, e and f, and the second to sixth diodes are sequentially connected in series to the common junction B, C, D, E, F; the 5 Schmitt triggers are respectively corresponding to the 5 diodes one by one, and one of the second capacitor, the sixth capacitor and the fourth capacitor is respectively bridged between the output end of each corresponding Schmitt trigger and the cathode of the diode;
a first capacitor is connected between the input end of the second Schmitt trigger positioned at the head end of the series circuit and the anode of the second diode positioned at the head end of the series circuit in a bridging manner; the input end of the second Schmitt trigger is also connected to the output end of the AND gate;
and a cathode point F of a sixth diode positioned at the tail end of the series circuit is connected with the anode of a seventh diode, and the cathode of the seventh diode outputs a voltage-multiplying signal.
Furthermore, the energy storage current limiting circuit is connected to the cathode of the seventh diode.
Further, the energy storage current limiting circuit comprises a seventh capacitor, a first resistor and a second resistor;
one end of the first resistor is connected with the cathode of the seventh diode, and the other end of the first resistor outputs a voltage-multiplying signal;
and the seventh capacitor and the second resistor are connected between the voltage-multiplying signal output end and the ground in parallel.
Furthermore, the anode of the second diode is connected with the cathode of the first diode, and the anode of the first diode is connected with a +5V power supply.
Further, when the boosting control signal sykz is at a high level, boosting is allowed, and the six-fold voltage rectifying circuit outputs a voltage-doubled signal.
Further, forward conduction voltages of the second to seventh diodes are all the same.
Further, the six-time voltage rectification circuit outputs a voltage-multiplying signal VO= 6*V-6VDV is the supply voltage, VDIs the forward conduction voltage of any diode.
The invention achieves the following beneficial effects:
1. the output is controllable: the voltage-multiplying signal control end is provided, the voltage-multiplying signal output can be controlled, and the voltage-multiplying signal output can be controlled under the condition of no power failure.
2. The method has the following advantages of anti-interference capability: the square wave signal generating circuit composed of the Schmitt trigger and the RC can improve the immunity of circuit design, thereby improving the reliability.
Drawings
FIG. 1 is a schematic diagram of the structure of the present embodiment;
fig. 2 is a waveform diagram of input and output signals of the schmitt trigger N1A of fig. 1.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1, the output controllable six-fold voltage rectification circuit in the present embodiment includes: 6 units of Schmidt trigger, 1 AND gate, 7 diodes, 8 capacitors and 4 resistors.
The schmitt trigger N1A, the capacitor C8 and the resistor R4 constitute a square wave signal generating circuit. Pin 4 of schmitt trigger N1A is power terminated at +5V and pin 7 is grounded. The input end of the Schmitt trigger N1A is grounded through a capacitor C8, a resistor R4 is connected between the input end and the output end, and the output end is connected to the other input end of the AND gate N2A. After power-up, the pin 1 terminal of N1A is at low level, the pin 2 terminal is at high level, the capacitor C8 is charged through the resistor R4, and the voltage V at the pin 1 terminalPin1Slowly increase as VPin1When the voltage of the threshold 1 is reached, the end of the pin 2 becomes low level, the capacitor C8 is reversely charged through the resistor R4, and the end voltage V of the pin 1 isPin1Slowly decrease as VPin1When the voltage drops to the threshold 2, the terminal 2 goes high again, and the capacitor C8 is charged … … through the resistor R4, so that the waveforms of the signals at the terminal 1 and the terminal 2 of the N1A are as shown in fig. 2.
And gate N2A is used to realize boost control function, wherein one input signal sykz of the and gate is a boost control signal, when it is high level, boost is allowed, VOThe output end outputs a voltage-multiplying signal. Therefore, whether or not to output the voltage-multiplied signal can be controlled by the voltage-boosting control signal sykz. The other input signal of the and gate is the signal output from pin 2 of the schmitt trigger N1A. The output of the and gate N2A is connected to a six-fold voltage rectifier circuit.
The Schmitt trigger N1B-N1F with 5 units, 6 diodes D2-D7 and 6 capacitors C1-C6 form a six-time voltage rectifying circuit. Schmitt triggers N1B-N1F with 5 units are sequentially connected at points b, c, D, e and f, and 5 diodes D2-D6 are sequentially connected at point B, C, D, E, F. The Schmitt trigger of each unit corresponds to 1 diode, and capacitors C2-C6 are respectively connected between the output end of each Schmitt trigger and the cathode of each diode in a bridging mode. A capacitor C1 is connected between the input end a of the first Schmitt trigger N1B and the anode A of the first diode D2, meanwhile, the input end a of the first Schmitt trigger N1B is also connected to the output end of the AND gate N2A, the anode A of the first diode D2 is also connected with the cathode of the diode D1, and the anode of the diode D1 is connected with a +5V power supply. The cathode point F of the diode D6 is connected to the anode of the diode D7, and the cathode of the diode D7 is connected to the tank current limiting circuit.
The capacitor C7, the resistor R1 and the resistor R2 form an energy storage current limiting circuit, wherein the capacitor C7 and the resistor R2 are connected in parallel to V of the rectifying circuitOBetween the output end and the ground, one end of a resistor R1 is connected in series with the cathode of the last diode D7 in the six-time voltage rectifying circuit, and the other end is used as VOAnd (4) an output end.
The forward conduction voltages of the diodes D2-D7 are all the same.
When the voltage at pin 2 of the Schmitt trigger N1A is high, the voltage at point a approaches the +5V supply voltage applied to the AND gate N2A, i.e., V, allowing boostinga=5V, the voltage at point a V cannot change abruptly because the voltage across the capacitor C1 does not change abruptlyA=5V, voltage V at point BB=VA-VD2=5V-VD2，VD2Is the voltage drop of diode D2. When pin 2 of N1A is low, point a is low, and due to the inverting action of Schmitt trigger N1B, the voltage at point b is close to the power supply voltage, i.e., Vb=5V, then the voltage V at point B is now presentB=VA-VD2+Vb=10V-VD2，VA=VaAnd = 5V. Due to the isolation of the diode D2, the voltage at point B can still be maintained at 10V-V even if pin 2 of N1A goes high againD2。
The same can be obtained:
voltage V at point CC=VB-VD3+Vc=15V-VD2-VD3；
Voltage V at point DD=VC-VD4+Vd=20V-VD2-VD3-VD4；
E point electricityPressure VE=VD-VD5+Ve=25V-VD2-VD3-VD4-VD5；
Voltage V at point FF=VE-VD6+Vf=30V-VD2-VD3-VD4-VD5-VD6=30V-5VDWherein V isDIs the forward conduction voltage of the diode, VD3、VD4、VD5、VD6The voltage drops of diodes D3, D4, D5, D6, respectively.
Then, the voltage V at the output end of the six-fold voltage rectification circuitO=VF-VD7=30V-6VD，VD7Is the voltage drop of diode D7.
In fig. 1, the output driving capability of the six-fold voltage rectifying circuit can be enhanced by the design that the point a is pulled up by the diode D1.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (7)

1. A six-time voltage rectifying circuit with controllable output is characterized by comprising a square wave signal generating circuit and a six-time voltage rectifying circuit;
the square wave signal generating circuit comprises a first Schmitt trigger, an eighth capacitor and a fourth resistor; the input end of the first Schmitt trigger is grounded through an eighth capacitor, a fourth resistor is connected between the input end and the output end of the first Schmitt trigger, and the output end of the first Schmitt trigger is connected to the other input end of the AND gate; one path of input signal sykz of the AND gate is a boosting control signal, and the output end of the AND gate is connected to the six-time voltage rectifying circuit;
the six-time voltage rectifying circuit comprises second to sixth Schmitt triggers, second to sixth diodes and second to sixth capacitors; the second to sixth schmitt triggers are sequentially connected in series to the common junction b, c, d, e and f, and the second to sixth diodes are sequentially connected in series to the common junction B, C, D, E, F; the 5 Schmitt triggers are respectively corresponding to the 5 diodes one by one, and one of the second capacitor, the sixth capacitor and the fourth capacitor is respectively bridged between the output end of each corresponding Schmitt trigger and the cathode of the diode;
a first capacitor is connected between the input end of the second Schmitt trigger positioned at the head end of the series circuit and the anode of the second diode positioned at the head end of the series circuit in a bridging manner; the input end of the second Schmitt trigger is also connected to the output end of the AND gate;
and a cathode point F of a sixth diode positioned at the tail end of the series circuit is connected with the anode of a seventh diode, and the cathode of the seventh diode outputs a voltage-multiplying signal.
2. The output controllable six-fold voltage rectifier circuit as claimed in claim 1, further comprising an energy storage current limiting circuit connected to the cathode of the seventh diode.
3. The output-controllable six-time voltage regulating circuit as claimed in claim 2, wherein said energy-storage current limiting circuit comprises a seventh capacitor, a first resistor and a second resistor;
one end of the first resistor is connected with the cathode of the seventh diode, and the other end of the first resistor outputs a voltage-multiplying signal;
and the seventh capacitor and the second resistor are connected between the voltage-multiplying signal output end and the ground in parallel.
4. The output controllable six-fold voltage rectifier circuit as claimed in claim 1, wherein the anode of the second diode is connected with the cathode of the first diode, and the anode of the first diode is connected with a +5V power supply.
5. The six-voltage-multiplying rectifier circuit according to claim 1, wherein when the boost control signal sykz is at a high level, boosting is allowed, and the six-voltage-multiplying rectifier circuit outputs a voltage-multiplying signal.
6. The six-fold voltage rectifier circuit as claimed in claim 5, wherein the forward conduction voltages of the second to seventh diodes are the same.
7. The six-fold voltage-regulating circuit as claimed in claim 6, wherein the six-fold voltage-regulating circuit outputs a voltage-multiplying signal VO= 6*V-6VDV is the supply voltage, VDIs the forward conduction voltage of any diode.
CN202011109289.2A 2020-10-16 2020-10-16 Output-controllable six-time voltage rectifying circuit Pending CN112383232A (en)

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Application Number Priority Date Filing Date Title
CN202011109289.2A CN112383232A (en) 2020-10-16 2020-10-16 Output-controllable six-time voltage rectifying circuit

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Application Number Priority Date Filing Date Title
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06169220A (en) * 1991-01-30 1994-06-14 Nec Corp Oscillation stop detection circuit
US6184741B1 (en) * 1996-08-02 2001-02-06 Sgs-Thomson Microelectronics S.R.L. Bidirectional charge pump generating either a positive or negative voltage
CN1671031A (en) * 2004-03-19 2005-09-21 株式会社半导体能源研究所 Booster circuit, semiconductor device, and electronic apparatus
CN102801304A (en) * 2011-05-23 2012-11-28 飞思卡尔半导体公司 Charge pump circuit with fast start-up
US20130222050A1 (en) * 2012-02-29 2013-08-29 Taiwan Semiconductor Manufacturing Co., Ltd. Low Voltage and High Driving Charge Pump
US20140132333A1 (en) * 2012-11-09 2014-05-15 Taiwan Semiconductor Manufacturing Company, Ltd. Switch circuit and method of operating the switch circuit
US20140253190A1 (en) * 2013-03-08 2014-09-11 Taiwan Semiconductor Manufacturing Company, Ltd. Multiple Power Domain Electronic Device and Related Method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06169220A (en) * 1991-01-30 1994-06-14 Nec Corp Oscillation stop detection circuit
US6184741B1 (en) * 1996-08-02 2001-02-06 Sgs-Thomson Microelectronics S.R.L. Bidirectional charge pump generating either a positive or negative voltage
CN1671031A (en) * 2004-03-19 2005-09-21 株式会社半导体能源研究所 Booster circuit, semiconductor device, and electronic apparatus
CN102801304A (en) * 2011-05-23 2012-11-28 飞思卡尔半导体公司 Charge pump circuit with fast start-up
US20130222050A1 (en) * 2012-02-29 2013-08-29 Taiwan Semiconductor Manufacturing Co., Ltd. Low Voltage and High Driving Charge Pump
US20140132333A1 (en) * 2012-11-09 2014-05-15 Taiwan Semiconductor Manufacturing Company, Ltd. Switch circuit and method of operating the switch circuit
US20140253190A1 (en) * 2013-03-08 2014-09-11 Taiwan Semiconductor Manufacturing Company, Ltd. Multiple Power Domain Electronic Device and Related Method

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Application publication date: 20210219

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