CN203135800U - Single-chip-control switching amplifier drive circuit module - Google Patents
Single-chip-control switching amplifier drive circuit module Download PDFInfo
- Publication number
- CN203135800U CN203135800U CN 201320107069 CN201320107069U CN203135800U CN 203135800 U CN203135800 U CN 203135800U CN 201320107069 CN201320107069 CN 201320107069 CN 201320107069 U CN201320107069 U CN 201320107069U CN 203135800 U CN203135800 U CN 203135800U
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- switching tube
- diode
- control chip
- capacitor
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Abstract
The utility model discloses a single-chip-control switching amplifier drive circuit module which comprises an H-bridge drive circuit. The H-bridge drive circuit is respectively connected with a power amplifier circuit and a power supply filter circuit. The power amplifier circuit is connected with the power supply filter circuit. The single-chip-control switching amplifier drive circuit module has the advantages of simple structure and low cost, a high-integrated chip is fitted inside the module, the stress-free parallel seal-welding process is used under protection of dry nitrogen, packaging tightness is good, and the reliability requirement is increased. The single-chip-control switching amplifier drive circuit module is moisture-resistant, corrosion-resistant, and widely applicable to the electronic industry field, the civil field and the fields of aerospace, mine, motor drive, robots, semiconductor test and the like.
Description
Technical field
The utility model belongs to switching amplifier device fabrication equipment technical field, relates to a kind of single-chip control type switching amplifier drive circuit module.
Background technology
World many countries all at research, development and application direct current machine, makes that the application of direct current machine is more and more wider in recent years.But traditional motor-driven and control circuit complex structure, antijamming capability is low, and circuit reliability is poor, the cost height.And, along with the high speed development of automatic control technology and microcomputer, the switching amplifier incompatibility requirement that conventional motors drives and controls.
The utility model content
The purpose of this utility model is to provide a kind of single-chip control type switching amplifier drive circuit module, and its maximum characteristics are circuit reductions, drives precision and reliability and improves, and has reduced cost simultaneously.
The technical scheme that the utility model adopts is to comprise H bridge drive circuit, and H bridge drive circuit connects power amplification circuit and power supply filter circuit respectively, and power amplification circuit connects the power power-supply filter circuit.
Characteristics of the present utility model are that also H bridge drive circuit is made up of control chip U1, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, resistance R 6, resistance R 7, resistance R 8, resistance R 9, capacitor C 3, capacitor C 4, diode D1, diode D2, diode D3, diode D4, diode D5, diode D6; Power amplification circuit is made up of switching tube Q1, switching tube Q2, switching tube Q3, switching tube Q4; The power supply filter circuit is made up of capacitor C 5, capacitor C 6; The power power-supply filter circuit is made up of capacitor C 1, capacitor C 2; Diode D1, diode D2 one end is connected with control chip U1 with VCC1, the diode D1 other end connects control chip U1 and AOUT by capacitor C 3, the diode D2 other end connects control chip U1 and BOUT by capacitor C 4, resistance R 1 is connected control chip U1 with diode D3 parallel connection and an end, the other end connects switching tube Q1 grid, resistance R 2 is connected control chip U1 with diode D4 parallel connection and an end, the other end connects switching tube Q2 grid, resistance R 3 is connected control chip U1 with diode D6 parallel connection and an end, the other end connects switching tube Q3 grid, resistance R 4 is connected control chip U1 with diode D5 parallel connection and an end, the other end connects switching tube Q4 grid, switching tube Q1 one end connection+VS and by diode C1 ground connection, the other end connects AOUT, control chip U1 and switching tube Q2 one end, the end that switching tube Q2 connects switching tube Q1 also connects AOUT and control chip U1, the other end connects control chip U1, SENSE, switching tube Q4 one end, the end that switching tube Q4 is connected with switching tube Q2 also connects SENSE, control chip U1, the other end connects switching tube Q3 one end, control chip U1, BOUT, the end that switching tube Q3 is connected with switching tube Q4 also connects control chip U1, BOUT, other end connection+VS and by diode C2 ground connection, capacitor C 5, capacitor C 6, resistance R 5, resistance R 6, capacitor C 7, resistance R 7 one end common grounds, capacitor C 5, capacitor C 6 parallel connections and the other end connect VCC3, resistance R 5, resistance R 6 other ends connect control chip U1 respectively, capacitor C 7, resistance R 7 parallel connections and the other end are connected control chip U1 jointly with resistance R 8 one ends, resistance R 8 other ends connect resistance R 9 one ends, VCC2, VCC4, the end that resistance R 9 is connected with resistance R 8 also connects VCC2, VCC4, the other end connects INHIBIT, control chip U1.
The beneficial effects of the utility model are that peripheral circuit is simplified, and drive precision and reliability and further improve, and further reduced production cost.
Description of drawings
Fig. 1 is the structured flowchart of a kind of single-chip control type of the utility model switching amplifier drive circuit module;
Fig. 2 is the circuit diagram of a kind of single-chip control type of the utility model switching amplifier drive circuit module;
Fig. 3 is circuit module external circuits figure of the present utility model.
Among the figure, 1.H bridge drive circuit, 2. power amplification circuit, 3. power supply filter circuit, 4. power power-supply filter circuit.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
The utility model H bridge drive circuit 1 as shown in Figure 1 connects power amplification circuit 2 and power supply filter circuit 3 respectively, and power amplification circuit 2 connects power power-supply filter circuit 4.As shown in Figure 2, H bridge drive circuit 1 is made up of control chip U1, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, resistance R 6, resistance R 7, resistance R 8, resistance R 9, capacitor C 3, capacitor C 4, diode D1, diode D2, diode D3, diode D4, diode D5, diode D6; Power amplification circuit 2 is made up of switching tube Q1, switching tube Q2, switching tube Q3, switching tube Q4; Power supply filter circuit 3 is made up of capacitor C 5, capacitor C 6; Power power-supply filter circuit 4 is made up of capacitor C 1, capacitor C 2; Diode D1, diode D2 one end is connected with control chip U1 with VCC1, the diode D1 other end connects control chip U1 by capacitor C 3 and AOUT is the A output module, the diode D2 other end connects control chip U1 by capacitor C 4 and BOUT is the B output module, resistance R 1 is connected control chip U1 with diode D3 parallel connection and an end, the other end connects switching tube Q1 grid, resistance R 2 is connected control chip U1 with diode D4 parallel connection and an end, the other end connects switching tube Q2 grid, resistance R 3 is connected control chip U1 with diode D6 parallel connection and an end, the other end connects switching tube Q3 grid, resistance R 4 is connected control chip U1 with diode D5 parallel connection and an end, the other end connects switching tube Q4 grid, switching tube Q1 one end connection+VS power power-supply positive pole, and by diode C1 ground connection, it is the A output module that the other end connects AOUT, control chip U1 and switching tube Q2 one end, it is A output module and control chip U1 that the end of switching tube Q2 connection switching tube Q1 also connects AOUT, the other end connects control chip U1, the SENSE current detection module, switching tube Q4 one end, the end that switching tube Q4 is connected with switching tube Q2 also connects the SENSE current detection module, control chip U1, the other end connects switching tube Q3 one end, control chip U1, BOUT is the B output module, the end that switching tube Q3 is connected with switching tube Q4 also connects control chip U1, BOUT is the B output module, other end connection+VS power power-supply is anodal and by diode C2 ground connection, capacitor C 5, capacitor C 6, resistance R 5, resistance R 6, capacitor C 7, resistance R 7 one end common grounds, capacitor C 5, capacitor C 6 parallel connections and the other end connect power supply VCC3, resistance R 5, resistance R 6 other ends connect control chip U1 respectively, capacitor C 7, resistance R 7 parallel connections and the other end are connected control chip U1 jointly with resistance R 8 one ends, resistance R 8 other ends connect resistance R 9 one ends, power supply VCC2, power supply VCC4, the end that resistance R 9 is connected with resistance R 8 also connects power supply VCC2, power supply VCC4, the other end connects INHIBIT and forbids end, control chip U1.
In the course of work, as shown in Figure 3, externally fed power supply VCC connects power supply filter circuit 3, be input in the H bridge drive circuit 1 through the supply power voltage after 3 filtrations of power supply filter circuit, external control signal is input in the H bridge drive circuit 1 by module I NPUT end, and module I NHIBIT end enables control to module.The driving signal that H bridge drive circuit produces is controlled the switching tube of power amplification circuit 2 respectively.External power power supply Vs+ connects power power-supply filter circuit 4, be input in the power amplification circuit 2 through the power voltage after 4 filtrations of power power-supply filter circuit, and AOUT, BOUT by module end is transferred to motor load with the power amplification signal, plays the effect of control motor speed and direction.The SENSE end plays the detection effect to the electric current of power amplification circuit output, and detected value is fed back to H bridge drive circuit.Circuit inside provides driving voltage for Q1, Q3 by the boostrap circuit that D1, D2 and C3, C4 form.By the bleeder circuit that R7, R8, C7 form, provide 7 pin of a reference voltage to the U1 chip.Resistance R 5, R6 connect 5,6 pin and the GND of U1 respectively, it is characterized in that playing power amplification circuit power switch pipe Dead Time adjusting up and down by the resistance size that changes R5, R6.Resistance R 9 is connected circuit and enables to it is characterized in that pull-up resistor R9 when the circuit Enable Pin is unsettled between control end and the power supply VCC end, gives definite high level state of Enable Pin.By the driving signal that H bridge drive circuit 1 provides, control Q1, Q4 and Q2, Q3 open, turn-off, and play the control to load motor rotating speed and rotation direction.Capacitor C 5, C6 are connected between power supply and the GND, and the power supply VCC of the H bridge of filter capacitor C5, C6 drive circuit 1 plays filter action.The power power-supply of the power amplification circuit 2 of filter capacitor C1, C2 plays filter action.
The utility model compared with prior art, have simple in structure, the characteristics that cost is low; inside modules adopts the highly integrated chip assembling; adopt simultaneously the unstressed parallel soldering and sealing packaging technology under the drying nitrogen protection again, packaging air tightness is good, improves reliability requirement.Humidity, corrosion-resistant, can be widely used in fields such as electronics industry, civil area and space flight, aviation, mine, motor-driven, robot, semiconductor test.
Claims (2)
1. single-chip control type switching amplifier drive circuit module, it is characterized in that: comprise H bridge drive circuit (1), H bridge drive circuit (1) connects power amplification circuit (2) and power supply filter circuit (3) respectively, and power amplification circuit (2) connects power power-supply filter circuit (4).
2. according to the described a kind of single-chip control type switching amplifier drive circuit module of claim 1, it is characterized in that: described H bridge drive circuit (1) is made up of control chip U1, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, resistance R 6, resistance R 7, resistance R 8, resistance R 9, capacitor C 3, capacitor C 4, diode D1, diode D2, diode D3, diode D4, diode D5, diode D6; Described power amplification circuit (2) is made up of switching tube Q1, switching tube Q2, switching tube Q3, switching tube Q4; Described power supply filter circuit (3) is made up of capacitor C 5, capacitor C 6; Described power power-supply filter circuit (4) is made up of capacitor C 1, capacitor C 2; Diode D1, diode D2 one end is connected with control chip U1 with VCC1, the diode D1 other end connects control chip U1 and AOUT by capacitor C 3, the diode D2 other end connects control chip U1 and BOUT by capacitor C 4, resistance R 1 is connected control chip U1 with diode D3 parallel connection and an end, the other end connects switching tube Q1 grid, resistance R 2 is connected control chip U1 with diode D4 parallel connection and an end, the other end connects switching tube Q2 grid, resistance R 3 is connected control chip U1 with diode D6 parallel connection and an end, the other end connects switching tube Q3 grid, resistance R 4 is connected control chip U1 with diode D5 parallel connection and an end, the other end connects switching tube Q4 grid, switching tube Q1 one end connection+VS and by diode C1 ground connection, the other end connects AOUT, control chip U1 and switching tube Q2 one end, the end that switching tube Q2 connects switching tube Q1 also connects AOUT and control chip U1, the other end connects control chip U1, SENSE, switching tube Q4 one end, the end that switching tube Q4 is connected with switching tube Q2 also connects SENSE, control chip U1, the other end connects switching tube Q3 one end, control chip U1, BOUT, the end that switching tube Q3 is connected with switching tube Q4 also connects control chip U1, BOUT, other end connection+VS and by diode C2 ground connection, capacitor C 5, capacitor C 6, resistance R 5, resistance R 6, capacitor C 7, resistance R 7 one end common grounds, capacitor C 5, capacitor C 6 parallel connections and the other end connect VCC3, resistance R 5, resistance R 6 other ends connect control chip U1 respectively, capacitor C 7, resistance R 7 parallel connections and the other end are connected control chip U1 jointly with resistance R 8 one ends, resistance R 8 other ends connect resistance R 9 one ends, VCC2, VCC4, the end that resistance R 9 is connected with resistance R 8 also connects VCC2, VCC4, the other end connects INHIBIT, control chip U1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320107069 CN203135800U (en) | 2013-03-08 | 2013-03-08 | Single-chip-control switching amplifier drive circuit module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320107069 CN203135800U (en) | 2013-03-08 | 2013-03-08 | Single-chip-control switching amplifier drive circuit module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203135800U true CN203135800U (en) | 2013-08-14 |
Family
ID=48943737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320107069 Expired - Lifetime CN203135800U (en) | 2013-03-08 | 2013-03-08 | Single-chip-control switching amplifier drive circuit module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203135800U (en) |
-
2013
- 2013-03-08 CN CN 201320107069 patent/CN203135800U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130814 |