CN102820871B - Gyroscope power supply - Google Patents
Gyroscope power supply Download PDFInfo
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- CN102820871B CN102820871B CN201210276933.4A CN201210276933A CN102820871B CN 102820871 B CN102820871 B CN 102820871B CN 201210276933 A CN201210276933 A CN 201210276933A CN 102820871 B CN102820871 B CN 102820871B
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Abstract
The invention discloses a gyroscope power supply, which comprises a gyroscope three-phase motor power supply circuit and a gyroscope exciting power supply circuit, wherein the gyroscope three-phase motor power supply circuit and the gyroscope exciting power supply circuit are integrated on a same microcircuit module; the gyroscope three-phase motor power supply circuit consists of a signal generator circuit, a frequency-division phase shift control circuit, an A-phase power amplification circuit, a B-phase power amplification circuit and a C-phase power amplification circuit; the A-phase power amplification circuit, the B-phase power amplification circuit and the C-phase power amplification circuit are all connected with the output end of the frequency-division phase shift control circuit; the gyroscope exciting power supply circuit consists of the signal generator circuit, a wave amplitude control circuit, a frequency-selecting filter circuit and an exciting power supply power amplification circuit, wherein the wave amplitude control circuit, the frequency-selecting filter circuit and the exciting power supply power amplification circuit are successively connected; and the frequency-division phase shift control circuit and the wave amplitude control circuit are both connected with the output end of the signal generator circuit. The gyroscope power supply disclosed by the invention has the advantages of high integration degree, small size, light weight, low power consumption, adjustable output frequency, small output waveform distortion degree, high working reliability, strong output loading capacity, strong practicality and wide popularization and application range.
Description
Technical field
The invention belongs to inertial navigation technology field, especially relate to a kind of gyro power supply.
Background technology
Gyro power supply comprises gyro excitation power supply and Gyroscope Motor Power two parts, in prior art, conventional gyro excitation power supply and gyro three-phase motor power supply are main mainly with resolution element or unifunctional circuit module greatly, exist defect and the deficiencies such as volume is large, practical function is single, peripheral structure is complicated, reliability is low, install and use inconvenience, debugging is complicated, also inapplicable in the inertial navigation measurement system of ask for something miniaturization.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned deficiency of the prior art, a kind of gyro power supply is provided, and its integrated level is high, and volume is little, lightweight, oneself power consumption is low, and output frequency is adjustable, and the output waveform distortion factor is little, functional reliability is high, output load capacity is strong, practical, and the extent of spreading amd application is wide.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of gyro power supply, it is characterized in that: comprise the gyro three-phase motor power circuit and the gyro excitation power supply circuit that are integrated on same microcircuit module, described gyro three-phase motor power circuit is by signal generator circuit with for the square-wave signal of signal generator circuit output being converted to the frequency division phase-shift control circuit of three-phase motor signal, and the A phase power amplification circuit for the three-phase motor signal of frequency division phase-shift control circuit output is amplified, B phase power amplification circuit and C phase power amplification circuit form, described A phase power amplification circuit, B phase power amplification circuit and C phase power amplification circuit all join with the output of described frequency division phase-shift control circuit, described gyro excitation power supply circuit by described signal generator circuit, for the excited signal of described signal generator circuit output is carried out amplitude adjustment wave amplitude control circuit, for the signal from the output of wave amplitude control circuit, extract the selective frequency filter circuit of required frequency signal and form for the excitation power supply power amplification circuit that the signal of wave amplitude control circuit output is amplified, described wave amplitude control circuit, selective frequency filter circuit and excitation power supply power amplification circuit join successively, described frequency division phase-shift control circuit and wave amplitude control circuit all join with the output of described signal generator circuit.
Above-mentioned a kind of gyro power supply, it is characterized in that: described signal generator circuit consists of crystal oscillator Y1, binary counting frequency divider U1, resistance R 1 and capacitor C 1, C2, C4 and C5, the pin CIN of one end of described crystal oscillator Y1 and described binary counting frequency divider U1 joins, the pin of the other end of described crystal oscillator Y1 and described binary counting frequency divider U1
join, described resistance R 1 is connected in parallel between the two ends of crystal oscillator Y1, one end of one end of described capacitor C 1 and described crystal oscillator Y1 joins, the other end of one end of described capacitor C 2 and described crystal oscillator Y1 joins, the equal ground connection of the other end of the other end of described capacitor C 1 and described capacitor C 2, the pin VCC of described binary counting frequency divider U1 joins with power supply VCC and by capacitor C in parallel 4 and capacitor C 5 ground connection, the pin Q4 of described binary counting frequency divider U1, Q5, Q6, Q7, Q8, Q9, Q10, Q12, a pin in Q13 and Q 14 is the excited signal output of described binary counting frequency divider U1, the pin Q4 of described binary counting frequency divider U1, Q5, Q6, Q7, Q8, Q9, Q10, Q12, one to four frequency division output terminal that pin is described binary counting frequency divider U1 in Q13 and Q14.
Above-mentioned a kind of gyro power supply, it is characterized in that: the pin Q8 of described binary counting frequency divider U1 is the excited signal output of described binary counting frequency divider U1, pin Q8, the Q10 of described binary counting frequency divider U1 and Q12 are the frequency division output terminal of described binary counting frequency divider U1.
Above-mentioned a kind of gyro power supply, it is characterized in that: described frequency division phase-shift control circuit is by four inputs and door U2A, four inputs and door U2B, four d flip-flop U3, resistance R 2 and capacitor C 3 form, described four inputs connect together and join with the pin Q8 of described binary counting frequency divider U1 with wherein two inputs of door U2A, described four inputs are joined with pin Q10 and the pin Q12 of described binary counting frequency divider U1 respectively with two other input of door U2A, described four inputs are joined with the door output of U2A and the pin CLK of described four d flip-flop U3, the pin VCC of described four d flip-flop U3 and one end of resistance R 2 all join with power supply VCC, one end of the other end of described resistance R 2 and capacitor C 3 and four inputs are all joined with four inputs of door U2B, described four inputs are joined with the door output of U2B and the pin CLR of described four d flip-flop U3, the equal ground connection of the other end of the pin GND of described four d flip-flop U3 and capacitor C 3, pin D1 and the pin of described four d flip-flop U3
join, the pin D2 of described four d flip-flop U3 and pin Q1 join and are the A phase output terminal of described frequency division phase-shift control circuit, and pin D3 and the pin Q2 of described four d flip-flop U3 join, the pin of described four d flip-flop U3
for the B phase output terminal of described frequency division phase-shift control circuit, the pin Q3 of described four d flip-flop U3 is the C phase output terminal of described frequency division phase-shift control circuit.
Above-mentioned a kind of gyro power supply, it is characterized in that: described A phase power amplification circuit is by power drive chip U4, nmos pass transistor Q1 and Q2, diode D1, D2 and D3, resistance R 3, R4, R5, R6, R7, R8, R9 and R10, and capacitor C 6, C7, C8, C9, C10, C11, C12 and C13 form, the pin HIN of described power drive chip U4 joins by the resistance R 4 of series connection and the A phase output terminal of R3 and described frequency division phase-shift control circuit, the pin HIN of described power drive chip U4 is by capacitor C 6 ground connection, the pin LIN of described power drive chip U4 joins by resistance R 5 and the link of resistance R 4 and resistance R 3, the pin LIN of described power drive chip U4 is by capacitor C 7 ground connection, the pin COM ground connection of described power drive chip U4, the pin VCC of described power drive chip U4 and the positive pole of diode D1 all join with power supply VCC, the negative pole of described diode D1 joins with the pin VB of power drive chip U4 by resistance R 6, the pin VB of described power drive chip U4 joins by the pin VS of capacitor C in parallel 8 and C9 and power drive chip U4, the pin HO of described power drive chip U4 joins by resistance R 7 and the grid of nmos pass transistor Q1, one end of the negative pole of described diode D2 and resistance R 8 all joins with the grid of described nmos pass transistor Q1, the drain electrode of described nmos pass transistor Q1 is joined with power supply VCC and by capacitor C in parallel 10 and C11 ground connection, the source electrode of described nmos pass transistor Q1, the drain electrode of nmos pass transistor Q2, the other end of the positive pole of diode D2 and resistance R 8 all joins with the pin VS of power drive chip U4 and is the output terminals A-OUT of described A phase power amplification circuit, the pin LO of described power drive chip U4 joins by resistance R 9 and the grid of nmos pass transistor Q2, one end of the negative pole of described diode D3 and resistance R 10 all joins with the grid of described nmos pass transistor Q1, the source electrode of described nmos pass transistor Q2, the other end of the positive pole of diode D3 and resistance R 10 all joins with power supply VEE and by capacitor C in parallel 12 and C13 ground connection.
Above-mentioned a kind of gyro power supply, it is characterized in that: described B phase power amplification circuit is by power drive chip U5, nmos pass transistor Q3 and Q4, diode D4, D5 and D6, resistance R 23, R24, R25, R26, R27, R28, R29 and R30, and capacitor C 21, C22, C23, C24, C25, C26, C27 and C28 form; the pin HIN of described power drive chip U5 joins by the resistance R 24 of series connection and the B phase output terminal of R23 and described frequency division phase-shift control circuit, the pin HIN of described power drive chip U5 is by capacitor C 21 ground connection, the pin LIN of described power drive chip U5 joins by resistance R 25 and the link of resistance R 24 and resistance R 23, the pin LIN of described power drive chip U5 is by capacitor C 22 ground connection, the pin COM ground connection of described power drive chip U5, the pin VCC of described power drive chip U5 and the positive pole of diode D4 all join with power supply VCC, the negative pole of described diode D4 joins with the pin VB of power drive chip U5 by resistance R 26, the pin VB of described power drive chip U5 joins by the pin VS of capacitor C in parallel 23 and C24 and power drive chip U5, the pin HO of described power drive chip U5 joins by resistance R 27 and the grid of nmos pass transistor Q3, one end of the negative pole of described diode D5 and resistance R 28 all joins with the grid of described nmos pass transistor Q3, the drain electrode of described nmos pass transistor Q3 is joined with power supply VCC and by capacitor C in parallel 25 and C26 ground connection, the source electrode of described nmos pass transistor Q3, the drain electrode of nmos pass transistor Q4, the other end of the positive pole of diode D5 and resistance R 28 all joins with the pin VS of power drive chip U5 and is the output B-OUT of described B phase power amplification circuit, the pin LO of described power drive chip U5 joins by resistance R 29 and the grid of nmos pass transistor Q4, one end of the negative pole of described diode D6 and resistance R 30 all joins with the grid of described nmos pass transistor Q3, the source electrode of described nmos pass transistor Q4, the other end of the positive pole of diode D6 and resistance R 30 all joins with power supply VEE and by capacitor C in parallel 27 and C28 ground connection.
Above-mentioned a kind of gyro power supply, it is characterized in that: described C phase power amplification circuit is by power drive chip U6, nmos pass transistor Q5 and Q6, diode D7, D8 and D9, resistance R 33, R34, R35, R36, R37, R38, R39 and R40, and capacitor C 31, C32, C33, C34, C35, C36, C37 and C38 form; the pin HIN of described power drive chip U6 joins by the resistance R 34 of series connection and the C phase output terminal of R33 and described frequency division phase-shift control circuit, the pin HIN of described power drive chip U6 is by capacitor C 31 ground connection, the pin LIN of described power drive chip U6 joins by resistance R 35 and the link of resistance R 34 and resistance R 33, the pin LIN of described power drive chip U6 is by capacitor C 32 ground connection, the pin COM ground connection of described power drive chip U6, the pin VCC of described power drive chip U6 and the positive pole of diode D7 all join with power supply VCC, the negative pole of described diode D7 joins with the pin VB of power drive chip U6 by resistance R 36, the pin VB of described power drive chip U6 joins by the pin VS of capacitor C in parallel 33 and C34 and power drive chip U6, the pin HO of described power drive chip U6 joins by resistance R 37 and the grid of nmos pass transistor Q5, one end of the negative pole of described diode D8 and resistance R 38 all joins with the grid of described nmos pass transistor Q5, the drain electrode of described nmos pass transistor Q5 is joined with power supply VCC and by capacitor C in parallel 35 and C36 ground connection, the source electrode of described nmos pass transistor Q5, the drain electrode of nmos pass transistor Q6, the other end of the positive pole of diode D8 and resistance R 38 all joins with the pin VS of power drive chip U6 and is the output C-OUT of described C phase power amplification circuit, the pin LO of described power drive chip U6 joins by resistance R 39 and the grid of nmos pass transistor Q6, one end of the negative pole of described diode D9 and resistance R 40 all joins with the grid of described nmos pass transistor Q5, the source electrode of described nmos pass transistor Q6, the other end of the positive pole of diode D9 and resistance R 40 all joins with power supply VEE and by capacitor C in parallel 37 and C38 ground connection.
Above-mentioned a kind of gyro power supply, it is characterized in that: described wave amplitude control circuit consists of potentiometer W1, the sliding end of described potentiometer W1 and a stiff end join and join with the pin Q8 of described binary counting frequency divider U1, and another stiff end of described potentiometer W1 is the output of described wave amplitude control circuit.
Above-mentioned a kind of gyro power supply, it is characterized in that: described selective frequency filter circuit consists of one-level selective frequency filter circuit and the secondary selective frequency filter circuit of resistance R 11 and cascade, described one-level selective frequency filter circuit is by integrated operational amplifier U7, resistance R 12, R13, R14 and R15, and capacitor C 14 and C15 formation, described secondary selective frequency filter circuit is by integrated operational amplifier U8, resistance R 16, R17, R18 and R19, and capacitor C 16 and C17 formation, one end of one end of described resistance R 11 and resistance R 12 all joins with the output of described wave amplitude control circuit, the other end ground connection of described resistance R 11, the other end of described resistance R 12 joins by resistance R 13 and the positive input of integrated operational amplifier U7, and join by capacitor C 15 and the output of integrated operational amplifier U7, the positive input of described integrated operational amplifier U7 is by capacitor C 14 ground connection, the reverse input end of described integrated operational amplifier U7 is by resistance R 14 ground connection, and join by resistance R 15 and the output of integrated operational amplifier U7, the output of one end of described resistance R 16 and described integrated operational amplifier U7 joins, the other end of described resistance R 16 joins by resistance R 17 and the positive input of integrated operational amplifier U8, and join by capacitor C 17 and the output of integrated operational amplifier U8, the positive input of described integrated operational amplifier U8 is by capacitor C 16 ground connection, the reverse input end of described integrated operational amplifier U8 is by resistance R 18 ground connection, and join by resistance R 19 and the output of integrated operational amplifier U8, the output of described integrated operational amplifier U8 is the output of described selective frequency filter circuit.
Above-mentioned a kind of gyro power supply, it is characterized in that: described excitation power supply power amplification circuit is by integrated operational amplifier U9, resistance R 20 and R21 and capacitor C 18 and C19 form, the reverse input end of described integrated operational amplifier U9 and the output of described selective frequency filter circuit join, and join with the output of integrated operational amplifier U9 by resistance R in parallel 21 and capacitor C 19, the positive input of described integrated operational amplifier U9 is by resistance R in parallel 20 capacitor C 18 ground connection, the output of described integrated operational amplifier U9 is the output OUT of described excitation power supply power amplification circuit.
The present invention compared with prior art has the following advantages:
1, the present invention has adopted modularization and integrated design, and gyro three-phase motor power circuit and gyro excitation power supply circuit have been integrated on same microcircuit module, and peripheral circuit is simple, integrated level is high, volume is little, lightweight, is especially specially adapted to miniaturization inertial navigation measurement system.
2, the present invention is by selecting suitable crystal oscillator Y1 and frequency division output terminal, can export gyro excitation power supply signal and the Gyroscope Motor Power signal of different frequency, meet gyro excitation power supply and the Gyroscope Motor Power instructions for use of different frequency, applied widely, modulate easy to use, the frequency of gyro excitation power supply can be adjusted within the scope of 4kHz～20kHz, and the frequency of Gyroscope Motor Power can be adjusted within the scope of 200Hz～500Hz.
3, the phase mutual interference between gyro excitation power supply of the present invention and Gyroscope Motor Power is little, and the output waveform distortion factor is little, and functional reliability is high.
4, output signal frequency stability of the present invention and amplitude stability are good, and oneself power consumption is low, and output load capacity is strong, can under the temperature conditions of-55 ℃～125 ℃, use, and environment is applied widely.
5, of the present invention practical, the extent of spreading amd application is wide, can be widely used in inertial navigation and the measuring systems such as Aeronautics and Astronautics, marine navigation, oil well logging and weaponry.
In sum, integrated level of the present invention is high, and volume is little, lightweight, oneself power consumption is low, output frequency is adjustable, and the output waveform distortion factor is little, and functional reliability is high, output load capacity is strong, practical, the extent of spreading amd application is wide, has solved defect and the deficiencies such as the existing volume of gyro power supply of the prior art is large, Heavy Weight, function singleness, peripheral structure is complicated, reliability is low, install and use inconvenience, debugging is complicated.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is schematic block circuit diagram of the present invention.
Fig. 2 is the circuit theory diagrams of signal generator circuit of the present invention.
Fig. 3 is the circuit theory diagrams of frequency division phase-shift control circuit of the present invention.
Fig. 4 is the circuit theory diagrams of A phase power amplification circuit of the present invention.
Fig. 5 is the circuit theory diagrams of B phase power amplification circuit of the present invention.
Fig. 6 is the circuit theory diagrams of C phase power amplification circuit of the present invention.
Fig. 7 is the circuit theory diagrams of wave amplitude control circuit of the present invention, selective frequency filter circuit and excitation power supply power amplification circuit.
Description of reference numerals:
1-signal generator circuit; 2-1-frequency division phase-shift control circuit;
2-2-A phase power amplification circuit; 2-3-B phase power amplification circuit;
2-4-C phase power amplification circuit; 3-1-wave amplitude control circuit;
3-2-selective frequency filter circuit; 3-3-excitation power supply power amplification circuit.
Embodiment
As shown in Figure 1, the present invention includes the gyro three-phase motor power circuit and the gyro excitation power supply circuit that are integrated on same microcircuit module, described gyro three-phase motor power circuit is by signal generator circuit 1 with for the square-wave signal of signal generator circuit 1 output being converted to the frequency division phase-shift control circuit 2-1 of three-phase motor signal, and the A phase power amplification circuit 2-2 for the three-phase motor signal of frequency division phase-shift control circuit 2-1 output is amplified, B phase power amplification circuit 2-3 and C phase power amplification circuit 2-4 form, described A phase power amplification circuit 2-2, B phase power amplification circuit 2-3 and C phase power amplification circuit 2-4 all join with the output of described frequency division phase-shift control circuit 2-1, described gyro excitation power supply circuit by described signal generator circuit 1, for the excited signal of described signal generator circuit 1 output is carried out amplitude adjustment wave amplitude control circuit 3-1, for the signal from wave amplitude control circuit 3-1 output, extract the selective frequency filter circuit 3-2 of required frequency signal and form for the excitation power supply power amplification circuit 3-3 that the signal of wave amplitude control circuit 3-1 output is amplified, described wave amplitude control circuit 3-1, selective frequency filter circuit 3-2 and excitation power supply power amplification circuit 3-3 join successively, described frequency division phase-shift control circuit 2-1 and wave amplitude control circuit 3-1 all join with the output of described signal generator circuit 1.
In conjunction with Fig. 2, in the present embodiment, described signal generator circuit 1 consists of crystal oscillator Y1, binary counting frequency divider U1, resistance R 1 and capacitor C 1, C2, C4 and C5, the pin CIN of one end of described crystal oscillator Y1 and described binary counting frequency divider U1 joins, the pin of the other end of described crystal oscillator Y1 and described binary counting frequency divider U1
join, described resistance R 1 is connected in parallel between the two ends of crystal oscillator Y1, one end of one end of described capacitor C 1 and described crystal oscillator Y1 joins, the other end of one end of described capacitor C 2 and described crystal oscillator Y1 joins, the equal ground connection of the other end of the other end of described capacitor C 1 and described capacitor C 2, the pin VCC of described binary counting frequency divider U1 joins with power supply VCC and by capacitor C in parallel 4 and capacitor C 5 ground connection, the pin Q4 of described binary counting frequency divider U1, Q5, Q6, Q7, Q8, Q9, Q10, Q12, a pin in Q13 and Q14 is the excited signal output of described binary counting frequency divider U1, the pin Q4 of described binary counting frequency divider U1, Q5, Q6, Q7, Q8, Q9, Q10, Q12, one to four frequency division output terminal that pin is described binary counting frequency divider U1 in Q13 and Q14.
In the present embodiment, described crystal oscillator Y1 adopts 3.2768MHz crystal oscillator, described binary counting frequency divider U1 adopts chip CD4060, the pin Q8 of described binary counting frequency divider U1 is the excited signal output of described binary counting frequency divider U1, and pin Q8, the Q10 of described binary counting frequency divider U1 and Q12 are the frequency division output terminal of described binary counting frequency divider U1.Described 1 while of signal generator circuit is as the common signal source of gyro three-phase motor power circuit and gyro excitation power supply circuit.During concrete use, by selecting suitable crystal oscillator Y1 and frequency division output terminal, can obtain the output signal of different frequency.
In conjunction with Fig. 3, in the present embodiment, described frequency division phase-shift control circuit 2-1 is by four inputs and door U2A, four inputs and door U2B, four d flip-flop U3, resistance R 2 and capacitor C 3 form, described four inputs connect together and join with the pin Q8 of described binary counting frequency divider U1 with wherein two inputs of door U2A, described four inputs are joined with pin Q10 and the pin Q12 of described binary counting frequency divider U1 respectively with two other input of door U2A, described four inputs are joined with the door output of U2A and the pin CLK of described four d flip-flop U3, the pin VCC of described four d flip-flop U3 and one end of resistance R 2 all join with power supply VCC, one end of the other end of described resistance R 2 and capacitor C 3 and four inputs are all joined with four inputs of door U2B, described four inputs are joined with the door output of U2B and the pin CLR of described four d flip-flop U3, the equal ground connection of the other end of the pin GND of described four d flip-flop U3 and capacitor C 3, pin D1 and the pin of described four d flip-flop U3
join, the pin D2 of described four d flip-flop U3 and pin Q1 join and are the A phase output terminal of described frequency division phase-shift control circuit 2-1, and pin D3 and the pin Q2 of described four d flip-flop U3 join, the pin of described four d flip-flop U3
for the B phase output terminal of described frequency division phase-shift control circuit 2-1, the pin Q3 of described four d flip-flop U3 is the C phase output terminal of described frequency division phase-shift control circuit 2-1.Wherein, resistance R 2 and capacitor C 3 have formed the start-up circuit of described frequency division phase-shift control circuit 2-1, and the A phase output terminal of described frequency division phase-shift control circuit 2-1, B phase output terminal and C phase output terminal phase difference output are the three-phase square wave signal of 120 °.
During concrete enforcement, described four d flip-flop U3 adopts the low-power consumption 4D trigger MM54HC175 of high speed complementation output.
In conjunction with Fig. 4, in the present embodiment, described A phase power amplification circuit 2-2 is by power drive chip U4, nmos pass transistor Q1 and Q2, diode D1, D2 and D3, resistance R 3, R4, R5, R6, R7, R8, R9 and R10, and capacitor C 6, C7, C8, C9, C10, C11, C12 and C13 form, the pin HIN of described power drive chip U4 joins by the resistance R 4 of series connection and the A phase output terminal of R3 and described frequency division phase-shift control circuit 2-1, the pin HIN of described power drive chip U4 is by capacitor C 6 ground connection, the pin LIN of described power drive chip U4 joins by resistance R 5 and the link of resistance R 4 and resistance R 3, the pin LIN of described power drive chip U4 is by capacitor C 7 ground connection, the pin COM ground connection of described power drive chip U4, the pin VCC of described power drive chip U4 and the positive pole of diode D1 all join with power supply VCC, the negative pole of described diode D1 joins with the pin VB of power drive chip U4 by resistance R 6, the pin VB of described power drive chip U4 joins by the pin VS of capacitor C in parallel 8 and C9 and power drive chip U4, the pin HO of described power drive chip U4 joins by resistance R 7 and the grid of nmos pass transistor Q1, one end of the negative pole of described diode D2 and resistance R 8 all joins with the grid of described nmos pass transistor Q1, the drain electrode of described nmos pass transistor Q1 is joined with power supply VCC and by capacitor C in parallel 10 and C11 ground connection, the source electrode of described nmos pass transistor Q1, the drain electrode of nmos pass transistor Q2, the other end of the positive pole of diode D2 and resistance R 8 all joins with the pin VS of power drive chip U4 and is output terminals A-OUT of described A phase power amplification circuit 2-2, the pin LO of described power drive chip U4 joins by resistance R 9 and the grid of nmos pass transistor Q2, one end of the negative pole of described diode D3 and resistance R 10 all joins with the grid of described nmos pass transistor Q1, the source electrode of described nmos pass transistor Q2, the other end of the positive pole of diode D3 and resistance R 10 all joins with power supply VEE and by capacitor C in parallel 12 and C13 ground connection.Wherein, resistance R 3, R4, R5, R7 and R9 all play metering function, and capacitor C 6 and C7 all strobe, and 8 couples of described nmos pass transistor Q1 of diode D2 and resistance R shield, and 10 couples of described nmos pass transistor Q2 of diode D3 and resistance R shield.
In conjunction with Fig. 5, in the present embodiment, described B phase power amplification circuit 2-3 is by power drive chip U5, nmos pass transistor Q3 and Q4, diode D4, D5 and D6, resistance R 23, R24, R25, R26, R27, R28, R29 and R30, and capacitor C 21, C22, C23, C24, C25, C26, C27 and C28 form; the pin HIN of described power drive chip U5 joins by the resistance R 24 of series connection and the B phase output terminal of R23 and described frequency division phase-shift control circuit 2-1, the pin HIN of described power drive chip U5 is by capacitor C 21 ground connection, the pin LIN of described power drive chip U5 joins by resistance R 25 and the link of resistance R 24 and resistance R 23, the pin LIN of described power drive chip U5 is by capacitor C 22 ground connection, the pin COM ground connection of described power drive chip U5, the pin VCC of described power drive chip U5 and the positive pole of diode D4 all join with power supply VCC, the negative pole of described diode D4 joins with the pin VB of power drive chip U5 by resistance R 26, the pin VB of described power drive chip U5 joins by the pin VS of capacitor C in parallel 23 and C24 and power drive chip U5, the pin HO of described power drive chip U5 joins by resistance R 27 and the grid of nmos pass transistor Q3, one end of the negative pole of described diode D5 and resistance R 28 all joins with the grid of described nmos pass transistor Q3, the drain electrode of described nmos pass transistor Q3 is joined with power supply VCC and by capacitor C in parallel 25 and C26 ground connection, the source electrode of described nmos pass transistor Q3, the drain electrode of nmos pass transistor Q4, the other end of the positive pole of diode D5 and resistance R 28 all joins with the pin VS of power drive chip U5 and is the output B-OUT of described B phase power amplification circuit 2-3, the pin LO of described power drive chip U5 joins by resistance R 29 and the grid of nmos pass transistor Q4, one end of the negative pole of described diode D6 and resistance R 30 all joins with the grid of described nmos pass transistor Q3, the source electrode of described nmos pass transistor Q4, the other end of the positive pole of diode D6 and resistance R 30 all joins with power supply VEE and by capacitor C in parallel 27 and C28 ground connection.Wherein, resistance R 23, R24, R25, R27 and R29 all play metering function; capacitor C 21 and C22 all strobe, and 28 couples of described nmos pass transistor Q3 of diode D5 and resistance R shield, and 30 couples of described nmos pass transistor Q4 of diode D6 and resistance R shield.
In conjunction with Fig. 6, in the present embodiment, described C phase power amplification circuit 2-4 is by power drive chip U6, nmos pass transistor Q5 and Q6, diode D7, D8 and D9, resistance R 33, R34, R35, R36, R37, R38, R39 and R40, and capacitor C 31, C32, C33, C34, C35, C36, C37 and C38 form; the pin HIN of described power drive chip U6 joins by the resistance R 34 of series connection and the C phase output terminal of R33 and described frequency division phase-shift control circuit 2-1, the pin HIN of described power drive chip U6 is by capacitor C 31 ground connection, the pin LIN of described power drive chip U6 joins by resistance R 35 and the link of resistance R 34 and resistance R 33, the pin LIN of described power drive chip U6 is by capacitor C 32 ground connection, the pin COM ground connection of described power drive chip U6, the pin VCC of described power drive chip U6 and the positive pole of diode D7 all join with power supply VCC, the negative pole of described diode D7 joins with the pin VB of power drive chip U6 by resistance R 36, the pin VB of described power drive chip U6 joins by the pin VS of capacitor C in parallel 33 and C34 and power drive chip U6, the pin HO of described power drive chip U6 joins by resistance R 37 and the grid of nmos pass transistor Q5, one end of the negative pole of described diode D8 and resistance R 38 all joins with the grid of described nmos pass transistor Q5, the drain electrode of described nmos pass transistor Q5 is joined with power supply VCC and by capacitor C in parallel 35 and C36 ground connection, the source electrode of described nmos pass transistor Q5, the drain electrode of nmos pass transistor Q6, the other end of the positive pole of diode D8 and resistance R 38 all joins with the pin VS of power drive chip U6 and is the output C-OUT of described C phase power amplification circuit 2-4, the pin LO of described power drive chip U6 joins by resistance R 39 and the grid of nmos pass transistor Q6, one end of the negative pole of described diode D9 and resistance R 40 all joins with the grid of described nmos pass transistor Q5, the source electrode of described nmos pass transistor Q6, the other end of the positive pole of diode D9 and resistance R 40 all joins with power supply VEE and by capacitor C in parallel 37 and C38 ground connection.Wherein, resistance R 33, R34, R35, R37 and R39 all play metering function; capacitor C 31 and C32 all strobe, and 38 couples of described nmos pass transistor Q5 of diode D8 and resistance R shield, and 40 couples of described nmos pass transistor Q6 of diode D9 and resistance R shield.
In the present embodiment, adopt nmos pass transistor to form each phase power amplification circuit, nmos pass transistor conducting resistance is little, and easily manufactures, and the gyro three-phase motor power circuit power output of formation is large.During concrete enforcement, described power drive chip U4, U5 and U6 all adopt that anti-noise ability is strong, drive voltage range is wide, applicable surface-pasted, high-speed power MOS drives chip I RS21834.
In conjunction with Fig. 7, in the present embodiment, described wave amplitude control circuit 3-1 consists of potentiometer W1, the sliding end of described potentiometer W1 and a stiff end join and join with the pin Q8 of described binary counting frequency divider U1, and another stiff end of described potentiometer W1 is the output of described wave amplitude control circuit 3-1.
In conjunction with Fig. 7, in the present embodiment, described selective frequency filter circuit 3-2 consists of one-level selective frequency filter circuit and the secondary selective frequency filter circuit of resistance R 11 and cascade, described one-level selective frequency filter circuit is by integrated operational amplifier U7, resistance R 12, R13, R14 and R15, and capacitor C 14 and C15 formation, described secondary selective frequency filter circuit is by integrated operational amplifier U8, resistance R 16, R17, R18 and R19, and capacitor C 16 and C17 formation, one end of one end of described resistance R 11 and resistance R 12 all joins with the output of described wave amplitude control circuit 3-1, the other end ground connection of described resistance R 11, the other end of described resistance R 12 joins by resistance R 13 and the positive input of integrated operational amplifier U7, and join by capacitor C 15 and the output of integrated operational amplifier U7, the positive input of described integrated operational amplifier U7 is by capacitor C 14 ground connection, the reverse input end of described integrated operational amplifier U7 is by resistance R 14 ground connection, and join by resistance R 15 and the output of integrated operational amplifier U7, the output of one end of described resistance R 16 and described integrated operational amplifier U7 joins, the other end of described resistance R 16 joins by resistance R 17 and the positive input of integrated operational amplifier U8, and join by capacitor C 17 and the output of integrated operational amplifier U8, the positive input of described integrated operational amplifier U8 is by capacitor C 16 ground connection, the reverse input end of described integrated operational amplifier U8 is by resistance R 18 ground connection, and join by resistance R 19 and the output of integrated operational amplifier U8, the output of described integrated operational amplifier U8 is the output of described selective frequency filter circuit 3-2.
In conjunction with Fig. 7, in the present embodiment, described excitation power supply power amplification circuit 3-3 is by integrated power amplifying circuit U9, resistance R 20 and R21 and capacitor C 18 and C19 form, the reverse input end of described integrated power amplifying circuit U9 and the output of described selective frequency filter circuit 3-2 join, and join with the output of integrated operational amplifier U9 by resistance R in parallel 21 and capacitor C 19, the positive input of described integrated power amplifying circuit U9 is by resistance R in parallel 20 capacitor C 18 ground connection, the output of described integrated power amplifying circuit U9 is the output OUT of described excitation power supply power amplification circuit 3-3.
In the present embodiment, described integrated operational amplifier U7 and U8 all adopt low noise high precision operating amplifier chip OP27, and its input switching rate is high, and input offset voltage temperature is floated little, and is applicable to surface mount, contributes to reduce power volume.Described integrated power amplifying circuit U9 adopts the strong operational amplifier chip OPA2541 of driving force.
During concrete enforcement, adopt thick film to mix integrated, multilayer wiring film-forming process and high density packaging technique is integrated in gyro three-phase motor power circuit and gyro excitation power supply circuit on same microcircuit module, substrate adopts 96% AL
2o
3ceramic substrate, its conductive coefficient is good, and intensity is high, planar routing has been taked effective quarantine measures, form high accuracy, high integrated, small size, highly reliable micro-power circuit module, volume only has 38mm * 22mm * 8mm, and working temperature can meet the rigor condition of-55 ℃～125 ℃.By selecting suitable crystal oscillator Y1 and frequency division output terminal, can export gyro excitation power supply signal and the Gyroscope Motor Power signal of different frequency, meet gyro excitation power supply and the Gyroscope Motor Power instructions for use of different frequency, applied widely, modulate easy to use, the frequency of gyro excitation power supply can be adjusted within the scope of 4kHz～20kHz, and the frequency of Gyroscope Motor Power can be adjusted within the scope of 200Hz～500Hz.
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every any simple modification of above embodiment being done according to the technology of the present invention essence, change and equivalent structure change, and all still belong in the protection range of technical solution of the present invention.
Claims (7)
1. a gyro power supply, it is characterized in that: comprise the gyro three-phase motor power circuit and the gyro excitation power supply circuit that are integrated on same microcircuit module, described gyro three-phase motor power circuit is by signal generator circuit (1) with for the square-wave signal of signal generator circuit (1) output being converted to the frequency division phase-shift control circuit (2-1) of three-phase motor signal, and the A phase power amplification circuit (2-2) for the three-phase motor signal of frequency division phase-shift control circuit (2-1) output is amplified, B phase power amplification circuit (2-3) and C phase power amplification circuit (2-4) form, described A phase power amplification circuit (2-2), B phase power amplification circuit (2-3) and C phase power amplification circuit (2-4) all join with the output of described frequency division phase-shift control circuit (2-1), described gyro excitation power supply circuit is by described signal generator circuit (1), for the excited signal of described signal generator circuit (1) output being carried out to the wave amplitude control circuit (3-1) of amplitude adjustment, excitation power supply power amplification circuit (3-3) formation that extracts the selective frequency filter circuit (3-2) of required frequency signal and amplify for the signal that wave amplitude control circuit (3-1) is exported for the signal from wave amplitude control circuit (3-1) output, and described wave amplitude control circuit (3-1), selective frequency filter circuit (3-2) and excitation power supply power amplification circuit (3-3) join successively, described frequency division phase-shift control circuit (2-1) and wave amplitude control circuit (3-1) all join with the output of described signal generator circuit (1),
Described signal generator circuit (1) consists of crystal oscillator Y1, binary counting frequency divider U1, resistance R 1 and capacitor C 1, C2, C4 and C5, the pin CIN of one end of described crystal oscillator Y1 and described binary counting frequency divider U1 joins, the pin of the other end of described crystal oscillator Y1 and described binary counting frequency divider U1
join, described resistance R 1 is connected in parallel between the two ends of crystal oscillator Y1, one end of one end of described capacitor C 1 and described crystal oscillator Y1 joins, the other end of one end of described capacitor C 2 and described crystal oscillator Y1 joins, the equal ground connection of the other end of the other end of described capacitor C 1 and described capacitor C 2, the pin VCC of described binary counting frequency divider U1 joins with power supply VCC and by capacitor C in parallel 4 and capacitor C 5 ground connection;
The pin Q8 of described binary counting frequency divider U1 is the excited signal output of described binary counting frequency divider U1, and pin Q8, the Q10 of described binary counting frequency divider U1 and Q12 are the frequency division output terminal of described binary counting frequency divider U1;
Described frequency division phase-shift control circuit (2-1) is by four inputs and door U2A, four inputs and door U2B, four d flip-flop U3, resistance R 2 and capacitor C 3 form, described four inputs connect together and join with the pin Q8 of described binary counting frequency divider U1 with wherein two inputs of door U2A, described four inputs are joined with pin Q10 and the pin Q12 of described binary counting frequency divider U1 respectively with two other input of door U2A, described four inputs are joined with the door output of U2A and the pin CLK of described four d flip-flop U3, the pin VCC of described four d flip-flop U3 and one end of resistance R 2 all join with power supply VCC, one end of the other end of described resistance R 2 and capacitor C 3 and four inputs are all joined with four inputs of door U2B, described four inputs are joined with the door output of U2B and the pin CLR of described four d flip-flop U3, the equal ground connection of the other end of the pin GND of described four d flip-flop U3 and capacitor C 3, pin D1 and the pin of described four d flip-flop U3
join, the pin D2 of described four d flip-flop U3 and pin Q1 join and are the A phase output terminal of described frequency division phase-shift control circuit (2-1), and pin D3 and the pin Q2 of described four d flip-flop U3 join, the pin of described four d flip-flop U3
for the B phase output terminal of described frequency division phase-shift control circuit (2-1), the pin Q3 of described four d flip-flop U3 is the C phase output terminal of described frequency division phase-shift control circuit (2-1).
2. according to a kind of gyro power supply claimed in claim 1, it is characterized in that: described A phase power amplification circuit (2-2) is by power drive chip U4, nmos pass transistor Q1 and Q2, diode D1, D2 and D3, resistance R 3, R4, R5, R6, R7, R8, R9 and R10, and capacitor C 6, C7, C8, C9, C10, C11, C12 and C13 form, the pin HIN of described power drive chip U4 joins by the resistance R 4 of series connection and the A phase output terminal of R3 and described frequency division phase-shift control circuit (2-1), the pin HIN of described power drive chip U4 is by capacitor C 6 ground connection, the pin LIN of described power drive chip U4 joins by resistance R 5 and the link of resistance R 4 and resistance R 3, the pin LIN of described power drive chip U4 is by capacitor C 7 ground connection, the pin COM ground connection of described power drive chip U4, the pin VCC of described power drive chip U4 and the positive pole of diode D1 all join with power supply VCC, the negative pole of described diode D1 joins with the pin VB of power drive chip U4 by resistance R 6, the pin VB of described power drive chip U4 joins by the pin VS of capacitor C in parallel 8 and C9 and power drive chip U4, the pin HO of described power drive chip U4 joins by resistance R 7 and the grid of nmos pass transistor Q1, one end of the negative pole of described diode D2 and resistance R 8 all joins with the grid of described nmos pass transistor Q1, the drain electrode of described nmos pass transistor Q1 is joined with power supply VCC and by capacitor C in parallel 10 and C11 ground connection, the source electrode of described nmos pass transistor Q1, the drain electrode of nmos pass transistor Q2, the other end of the positive pole of diode D2 and resistance R 8 all joins with the pin VS of power drive chip U4 and is the output terminals A-OUT of described A phase power amplification circuit (2-2), the pin LO of described power drive chip U4 joins by resistance R 9 and the grid of nmos pass transistor Q2, one end of the negative pole of described diode D3 and resistance R 10 all joins with the grid of described nmos pass transistor Q1, the source electrode of described nmos pass transistor Q2, the other end of the positive pole of diode D3 and resistance R 10 all joins with power supply VEE and by capacitor C in parallel 12 and C13 ground connection.
3. according to a kind of gyro power supply claimed in claim 1, it is characterized in that: described B phase power amplification circuit (2-3) is by power drive chip U5, nmos pass transistor Q3 and Q4, diode D4, D5 and D6, resistance R 23, R24, R25, R26, R27, R28, R29 and R30, and capacitor C 21, C22, C23, C24, C25, C26, C27 and C28 form; the pin HIN of described power drive chip U5 joins by the resistance R 24 of series connection and the B phase output terminal of R23 and described frequency division phase-shift control circuit (2-1), the pin HIN of described power drive chip U5 is by capacitor C 21 ground connection, the pin LIN of described power drive chip U5 joins by resistance R 25 and the link of resistance R 24 and resistance R 23, the pin LIN of described power drive chip U5 is by capacitor C 22 ground connection, the pin COM ground connection of described power drive chip U5, the pin VCC of described power drive chip U5 and the positive pole of diode D4 all join with power supply VCC, the negative pole of described diode D4 joins with the pin VB of power drive chip U5 by resistance R 26, the pin VB of described power drive chip U5 joins by the pin VS of capacitor C in parallel 23 and C24 and power drive chip U5, the pin HO of described power drive chip U5 joins by resistance R 27 and the grid of nmos pass transistor Q3, one end of the negative pole of described diode D5 and resistance R 28 all joins with the grid of described nmos pass transistor Q3, the drain electrode of described nmos pass transistor Q3 is joined with power supply VCC and by capacitor C in parallel 25 and C26 ground connection, the source electrode of described nmos pass transistor Q3, the drain electrode of nmos pass transistor Q4, the other end of the positive pole of diode D5 and resistance R 28 all joins with the pin VS of power drive chip U5 and is the output B-OUT of described B phase power amplification circuit (2-3), the pin LO of described power drive chip U5 joins by resistance R 29 and the grid of nmos pass transistor Q4, one end of the negative pole of described diode D6 and resistance R 30 all joins with the grid of described nmos pass transistor Q3, the source electrode of described nmos pass transistor Q4, the other end of the positive pole of diode D6 and resistance R 30 all joins with power supply VEE and by capacitor C in parallel 27 and C28 ground connection.
4. according to a kind of gyro power supply claimed in claim 1, it is characterized in that: described C phase power amplification circuit (2-4) is by power drive chip U6, nmos pass transistor Q5 and Q6, diode D7, D8 and D9, resistance R 33, R34, R35, R36, R37, R38, R39 and R40, and capacitor C 31, C32, C33, C34, C35, C36, C37 and C38 form; the pin HIN of described power drive chip U6 joins by the resistance R 34 of series connection and the C phase output terminal of R33 and described frequency division phase-shift control circuit (2-1), the pin HIN of described power drive chip U6 is by capacitor C 31 ground connection, the pin LIN of described power drive chip U6 joins by resistance R 35 and the link of resistance R 34 and resistance R 33, the pin LIN of described power drive chip U6 is by capacitor C 32 ground connection, the pin COM ground connection of described power drive chip U6, the pin VCC of described power drive chip U6 and the positive pole of diode D7 all join with power supply VCC, the negative pole of described diode D7 joins with the pin VB of power drive chip U6 by resistance R 36, the pin VB of described power drive chip U6 joins by the pin VS of capacitor C in parallel 33 and C34 and power drive chip U6, the pin HO of described power drive chip U6 joins by resistance R 37 and the grid of nmos pass transistor Q5, one end of the negative pole of described diode D8 and resistance R 38 all joins with the grid of described nmos pass transistor Q5, the drain electrode of described nmos pass transistor Q5 is joined with power supply VCC and by capacitor C in parallel 35 and C36 ground connection, the source electrode of described nmos pass transistor Q5, the drain electrode of nmos pass transistor Q6, the other end of the positive pole of diode D8 and resistance R 38 all joins with the pin VS of power drive chip U6 and is the output C-OUT of described C phase power amplification circuit (2-4), the pin LO of described power drive chip U6 joins by resistance R 39 and the grid of nmos pass transistor Q6, one end of the negative pole of described diode D9 and resistance R 40 all joins with the grid of described nmos pass transistor Q5, the source electrode of described nmos pass transistor Q6, the other end of the positive pole of diode D9 and resistance R 40 all joins with power supply VEE and by capacitor C in parallel 37 and C38 ground connection.
5. according to a kind of gyro power supply claimed in claim 1, it is characterized in that: described wave amplitude control circuit (3-1) consists of potentiometer W1, the sliding end of described potentiometer W1 and a stiff end join and join with the pin Q8 of described binary counting frequency divider U1, and another stiff end of described potentiometer W1 is the output of described wave amplitude control circuit (3-1).
6. according to a kind of gyro power supply claimed in claim 1, it is characterized in that: described selective frequency filter circuit (3-2) consists of one-level selective frequency filter circuit and the secondary selective frequency filter circuit of resistance R 11 and cascade, described one-level selective frequency filter circuit is by integrated operational amplifier U7, resistance R 12, R13, R14 and R15, and capacitor C 14 and C15 formation, described secondary selective frequency filter circuit is by integrated operational amplifier U8, resistance R 16, R17, R18 and R19, and capacitor C 16 and C17 formation, one end of one end of described resistance R 11 and resistance R 12 all joins with the output of described wave amplitude control circuit (3-1), the other end ground connection of described resistance R 11, the other end of described resistance R 12 joins by resistance R 13 and the positive input of integrated operational amplifier U7, and join by capacitor C 15 and the output of integrated operational amplifier U7, the positive input of described integrated operational amplifier U7 is by capacitor C 14 ground connection, the reverse input end of described integrated operational amplifier U7 is by resistance R 14 ground connection, and join by resistance R 15 and the output of integrated operational amplifier U7, the output of one end of described resistance R 16 and described integrated operational amplifier U7 joins, the other end of described resistance R 16 joins by resistance R 17 and the positive input of integrated operational amplifier U8, and join by capacitor C 17 and the output of integrated operational amplifier U8, the positive input of described integrated operational amplifier U8 is by capacitor C 16 ground connection, the reverse input end of described integrated operational amplifier U8 is by resistance R 18 ground connection, and join by resistance R 19 and the output of integrated operational amplifier U8, the output of described integrated operational amplifier U8 is the output of described selective frequency filter circuit (3-2).
7. according to a kind of gyro power supply claimed in claim 1, it is characterized in that: described excitation power supply power amplification circuit (3-3) is by integrated operational amplifier U9, resistance R 20 and R21 and capacitor C 18 and C19 form, the output of the reverse input end of described integrated operational amplifier U9 and described selective frequency filter circuit (3-2) joins, and join with the output of integrated operational amplifier U9 by resistance R in parallel 21 and capacitor C 19, the positive input of described integrated operational amplifier U9 is by resistance R in parallel 20 capacitor C 18 ground connection, the output of described integrated operational amplifier U9 is the output OUT of described excitation power supply power amplification circuit (3-3).
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