Operational amplifier high-low voltage vibration display circuit

Abstract

The utility model discloses a high-low voltage vibration display circuit of an operational amplifier, which comprises a power supply and a power supply circuit, and the power supply circuit is used for outputting voltage DC6V. The operational amplification circuit comprises an operational amplifier LT1637, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a power supply VIn, a resistor R5 and a capacitor C1; one end of the resistor R1 is electrically connected with DC6V voltage, the other end of the resistor R1 is electrically connected with one end of the resistor R2 and the anti-phase end of the operational amplifier LT1637, the other end of the resistor R2 is grounded, and the resistor R3 is electrically connected with the anti-phase end and the output end of the operational amplifier LT1637. And one end of the resistor R4 is electrically connected with the power supply VIn.

Description

TECHNICAL FIELD

[0001] The utility model relates to operation amplifier high low voltage vibration display technical field especially, it is a kind of operation amplifier high low voltage vibration display circuit. BACKGROUND

[0002] Operation amplifier (abbreviation "operational amplifier") is the core component in analog signal chain, usually as the interface between sensor and analog-digital converter (ADC);So it is widely used in circuit design, but operation amplifier, in the process of using, not only need to know the operation amplifier related circumstances from product manual, also need to know the specific working performance of amplifier in practical application;

[0003] Therefore, the prior art has defects, and needs to be improved. SUMMARY

[0004] The utility model solves technical problems: provide a kind of operation amplifier high low voltage vibration display circuit, and the high voltage oscillation state of output of operation amplifier LT1637 is shown by first display circuit, second display circuit.

[0005] The technical scheme of the utility model is as follows: a kind of operation amplifier high low voltage vibration display circuit, comprising:

[0006] Power supply circuit, the power supply circuit is used to output voltage DC6V;

[0007] Operation amplification circuit, the operation amplification circuit includes operation amplifier LT1637, resistance R1, resistance R2, resistance R3, resistance R4, power supply VIn, resistance R5, capacitor C1;The one end of resistance R1 is electrically connected with DC6V voltage, and the other end of resistance R1 is electrically connected with the one end of resistance R2 and the inverting terminal of operation amplifier LT1637 respectively, and the other end of resistance R2 is grounded, and resistance R3 is electrically connected with the inverting terminal and output terminal of operation amplifier LT1637 respectively;The one end of resistance R4 is electrically connected with power supply VIn, and the other end of resistance R4 is electrically connected with the noninverting terminal of operation amplifier LT1637;The one end of capacitor C1 is electrically connected with the noninverting terminal of operation amplifier LT1637, and the other end of capacitor C1 is electrically connected with the one end of resistance R5, and the other end of resistance R5 is electrically connected with the output terminal of operation amplifier LT1637;

[0008] First display circuit, the first display circuit is electrically connected with the output terminal of operation amplifier LT1637, and is used for the oscillation state of operation amplifier LT1637 high voltage output;

[0009] A second display circuit is electrically connected with the output terminal of the operational amplifier LT1637 and is used for displaying the oscillation state of the low voltage output of the operational amplifier LT1637.

[0010] The resistance R1 is 5KΩ, and the resistance R2 is 10KΩ.

[0011] The resistance R4 is 20KΩ, the resistance R5 is 10KΩ, and the capacitance C1 is 0.33uF.

[0012] The first display circuit comprises a resistance R6, a light emitting diode D1 and a resistance R8.

[0013] The second display circuit comprises a resistance R7 and a light emitting diode D2.

[0014] The light emitting diode D1 is green, and the light emitting diode D2 is red.

[0015] The resistance R6 is 100Ω, the resistance R7 is 402Ω, and the resistance R8 is 348Ω.

[0016] The power supply circuit comprises a voltage DC6V, a resistance R9, a light emitting diode D3, a battery pack and a diode D4.

[0017] The resistance R9 is 1KΩ.

[0018] When the input voltage of the power supply VIn is higher than the threshold voltage of the operational amplifier LT1637, the operational amplifier LT1637 is in a high voltage output state, and the first display circuit displays the oscillation state of the high voltage output of the operational amplifier LT1637.

[0019] When the input voltage of the power supply VIn is lower than the threshold voltage of the operational amplifier LT1637, the operational amplifier LT1637 is in a low voltage output state, and the second display circuit displays the oscillation state of the low voltage output of the operational amplifier LT1637.BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The utility model discloses an operational amplifier and first display circuit, second display circuit schematic diagram for the utility model;

[0021] Figure 2 The utility model discloses a power supply circuit schematic diagram. DETAILED DESCRIPTION

[0022] The utility model is in detail below combining with the attached drawing and specific embodiment.

[0023] As Figure 1 , Figure 2 The utility model discloses an operational amplifier high low voltage vibration display circuit, comprising:

[0024] Power supply circuit, the power supply circuit is used to output voltage DC6V;

[0025] Operational amplifier circuit, the operational amplifier circuit includes operational amplifier LT1637, resistance R1, resistance R2, resistance R3, resistance R4, power supply VIn, resistance R5, electric capacity C1, one end of resistance R1 is connected with DC6V voltage electrically, the other end of resistance R1 is connected with one end of resistance R2, the opposite phase end of operational amplifier LT1637 electrically respectively, the other end of resistance R2 is grounded, resistance R3 is connected with the opposite phase end of operational amplifier LT1637, output electrically respectively, one end of resistance R4 is connected with power supply VIn electrically, the other end of resistance R4 is connected with the same phase end of operational amplifier LT1637 electrically, one end of electric capacity C1 is connected with the same phase end of operational amplifier LT1637 electrically, the other end of electric capacity C1 is connected with one end of resistance R5 electrically, the other end of resistance R5 is connected with the output of operational amplifier LT1637 electrically;

[0026] First display circuit, the first display circuit is connected with the output of operational amplifier LT1637 electrically, and is used for the oscillation state of operational amplifier LT1637 high voltage output;

[0027] Second display circuit, the second display circuit is connected with the output of operational amplifier LT1637 electrically, and is used for the oscillation state of operational amplifier LT1637 low voltage output, resistance R1 is 5KΩ, resistance R2 is 10KΩ, resistance R4 is 20KΩ, resistance R5 is 10KΩ, electric capacity C1 is 0.33uF;

[0028] Specifically, when the power VIn input voltage is higher than the threshold voltage of the operational amplifier LT1637, the operational amplifier LT1637 is in a high voltage output state, and the first display circuit displays the oscillation state of the high voltage output of the operational amplifier LT1637.

[0029] When the power VIn input voltage is lower than the threshold voltage of the operational amplifier LT1637, the operational amplifier LT1637 is in a low voltage output state, and the second display circuit displays the oscillation state of the low voltage output of the operational amplifier LT1637.

[0030] Among them, the resistance R1, the resistance R2, the resistance R3, the resistance R4, the resistance R5, the capacitor C1 are the peripheral circuits of the operational amplifier LT1637.

[0031] As shown in the figure, Figure 1 In this embodiment, the first display circuit includes: resistance R6, light emitting diode D1, resistance R8; the anode of the light emitting diode D1 is electrically connected with the output end of the operational amplifier LT1637 through the resistance R6, and the cathode of the light emitting diode D1 is grounded through the resistance R8; the second display circuit includes resistance R7, light emitting diode D2; the cathode of the light emitting diode D2 is electrically connected with the output end of the operational amplifier LT1637 through the resistance R6; the anode of the light emitting diode D2 is electrically connected with the DC6V voltage through the resistance R7; the light emitting diode D1 is green, and the light emitting diode D2 is red; the resistance R6 is 100Ω, the resistance R7 is 402Ω, and the resistance R8 is 348Ω;

[0032] Among them, the light emitting diode D1 is used to display the oscillation state of the high voltage output of the operational amplifier LT1637, and the change of green can be used to watch the change of the high voltage oscillation state; the light emitting diode D2 is used to display the oscillation state of the low voltage output of the operational amplifier LT1637, and the change of red can be used to watch the change of the low voltage oscillation state;

[0033] Specifically, the first display circuit and the second display circuit are not limited to be displayed by the display screen or other displayable circuits.

[0034] As shown in the figure, Figure 1 , Figure 2 In this embodiment, the power circuit includes voltage DC6V, resistance R9, light emitting diode D3, battery pack, diode D4; the voltage DC6V is grounded through the resistance R9 and the light emitting diode D3; the voltage DC6V is grounded through the battery pack and the diode D4, and the resistance R9 is 1KΩ.

[0035] Specifically, the voltage DC6V is used to provide the working voltage for the operational amplifier and the first display circuit and the second display circuit, and the battery set is charged through the voltage DC6V, and when the voltage DC6V is powered off, the operational amplifier and the first display circuit and the second display circuit can continue to be provided with the working voltage through the battery set.

[0036] The above are only preferred embodiments of the present application, and are not used to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A high / low voltage vibration display circuit for an operational amplifier, characterized in that, The utility model relates to a kind of voltage regulator circuit, including: Power supply circuit, the power supply circuit is used to output voltage DC6V; Operational amplifier circuit, the operational amplifier circuit includes operational amplifier LT1637, resistance R1, resistance R2, resistance R3, resistance R4, power supply VIn, resistance R5, capacitor C1;The one end of the resistance R1 is electrically connected with DC6V voltage, the other end of the resistance R1 is electrically connected with the one end of resistance R2, the inverting terminal of operational amplifier LT1637 respectively, the other end of the resistance R2 is grounded, and the inverting terminal of operational amplifier LT1637 is electrically connected with the output terminal respectively with resistance R3;The one end of the resistance R4 is electrically connected with power supply VIn, and the other end of the resistance R4 is electrically connected with the noninverting terminal of operational amplifier LT1637;The one end of the capacitor C1 is electrically connected with the noninverting terminal of operational amplifier LT1637, and the other end of the capacitor C1 is electrically connected with the one end of resistance R5, and the other end of the resistance R5 is electrically connected with the output terminal of operational amplifier LT1637; First display circuit, the output terminal of operational amplifier LT1637 is electrically connected with the first display circuit, and is used to the oscillation state of operational amplifier LT1637 high voltage output; Second display circuit, the output terminal of operational amplifier LT1637 is electrically connected with the second display circuit, and is used to the oscillation state of operational amplifier LT1637 low voltage output.

2. The high-low voltage oscillation display circuit of claim 1, wherein: The resistance R1 is set to 5KΩ, and the resistance R2 is set to 10KΩ.

3. The high-low voltage oscillation display circuit of claim 2, wherein: The resistance R4 is set to 20KΩ, the resistance R5 is set to 10KΩ, and the capacitor C1 is set to 0.33uF.

4. The high-low voltage oscillation display circuit of claim 1, wherein: The first display circuit includes: resistance R6, light emitting diode D1, resistance R8;The anode of the light emitting diode D1 is electrically connected with the output terminal of operational amplifier LT1637 through resistance R6, and the cathode of the light emitting diode D1 is grounded through resistance R8.

5. The high-low voltage oscillation display circuit of claim 4, wherein: The second display circuit includes resistance R7, light emitting diode D2;The cathode of the light emitting diode D2 is electrically connected with the output terminal of operational amplifier LT1637 through resistance R6;The anode of the light emitting diode D2 is electrically connected with DC6V voltage through resistance R7.

6. The high-low voltage oscillation display circuit of claim 5, wherein: The light emitting diode D1 is set to green, and the light emitting diode D2 is set to red.

7. The high-low voltage oscillation display circuit of claim 5, wherein: The resistance R6 is set to 100Ω, the resistance R7 is set to 402Ω, and the resistance R8 is set to 348Ω.

8. The high-low voltage oscillation display circuit of claim 1, wherein: The power supply circuit includes voltage DC6V, resistance R9, light emitting diode D3, battery pack, diode D4;The voltage DC6V is grounded through resistance R9, light emitting diode D3;The voltage DC6V is grounded through battery pack, diode D4.

9. The high-low voltage ring oscillator circuit of claim 8, wherein: The resistance R9 is set to 1KΩ.

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