Multi-channel segmented voltage adjustable control system in aircraft cockpit

Abstract

The application discloses a multi-path segmented voltage adjustable control system in an aircraft cabin, comprising one potentiometer circuit for providing only one potentiometer voltage, and two or more segmented voltage adjustable control circuits, each of which has a voltage follower, an addition-subtraction operation unit, a voltage regulator and a voltage feedback unit, wherein the addition-subtraction operation unit has a segmented selection control circuit, different segmented adjustment circuits and an addition-subtraction operation circuit, and the segmented selection control circuit is used for selectively switching one segment in the different segmented voltage adjustment circuits as a working segment to be connected to the addition-subtraction operation circuit. The application has the beneficial effect of realizing the design of the multi-path segmented voltage adjustable control circuit and meeting the demand of a single single-layer potentiometer for adjusting multiple different voltage outputs.

Description

TECHNICAL FIELD

[0001] The present application relates to voltage processing in an aircraft cabin, in particular, a multi-path segmented voltage adjustable control system in an aircraft cabin. BACKGROUND

[0002] In the case of increasingly high requirements for integration and lightness of the aircraft cabin, it is often necessary to adjust multiple different voltage outputs through a single single-layer potentiometer to control different devices. In the current voltage regulation design, different voltage outputs are mainly controlled by multiple potentiometers. By controlling multiple potentiometers, the number of potentiometers is increased, which cannot meet the requirements of integration and lightness of the aircraft cabin. SUMMARY

[0003] The purpose of the present application is to solve the problem of controlling different voltage outputs by multiple potentiometers in the prior art, and to provide a new multi-path segmented voltage adjustable control system in an aircraft cabin.

[0004] To achieve this purpose, the technical solution of the present application is as follows: a multi-path segmented voltage adjustable control system in an aircraft cabin, comprising,

[0005] a potentiometer circuit for providing only one potentiometer voltage; and

[0006] two or more segmented voltage adjustable control circuits, each of the segmented voltage adjustable control circuits has a voltage follower, an addition-subtraction operation unit, a voltage regulator and a voltage feedback unit, wherein the voltage follower outputs a following voltage according to the potentiometer voltage from the potentiometer circuit, the addition-subtraction operation unit outputs a control voltage according to the following voltage from the voltage follower and the feedback voltage from the voltage feedback unit, the voltage regulator outputs an adjusted voltage according to the control voltage from the addition-subtraction operation unit, and the voltage feedback unit outputs a feedback voltage according to the adjusted voltage from the voltage regulator.

[0007] The addition-subtraction operation unit has a segmented selection control circuit, different segmented adjustment circuits and an addition-subtraction operation circuit, and the segmented selection control circuit is used to selectively switch one segment in the different segmented voltage adjustment circuits as a working segment to be connected to the addition-subtraction operation circuit.

[0008] As the preferred scheme of the multi-path segmented voltage adjustable control system in the cockpit of the airplane, the potentiometer circuit is composed of working power supply 1, ground terminal (GND), potentiometer Rx1, resistor R1 and resistor R2, wherein the working power supply 1 is used as the power supply of the potentiometer circuit, the ground terminal (GND) is used as the ground terminal of the potentiometer circuit, the potentiometer Rx1 is used as the adjusting device, the resistor R1 is used to ensure that the potentiometer circuit has basic voltage output when the potentiometer Rx1 fails, and the resistor R2 is used to ensure that the potentiometer Rx1 has voltage output in the dead zone.

[0009] As the preferred scheme of the multi-path segmented voltage adjustable control system in the cockpit of the airplane, the voltage follower (the nth path) is composed of working power supply 2, ground terminal (GND), capacitor Ca_n, resistor Ra_n and operational amplifier Ua_nA, wherein the working power supply 2 is used as the power supply of the voltage follower (the nth path), the ground terminal (GND) is used as the ground terminal of the voltage follower (the nth path), and the capacitor Ca_n is used as the bypass capacitor of the operational amplifier Ua_nA.

[0010] As the preferred scheme of the multi-path segmented voltage adjustable control system in the cockpit of the airplane, the add-subtract operation circuit (the nth path) is composed of a segmented selection control circuit, different segmented adjustment circuits and an operation circuit, the segmented selection control circuit is used to selectively switch one segment in the different segmented voltage adjustment circuits as the working segment, the different segmented adjustment circuits are composed of working power supply 3, ground terminal (GND), resistors Rc_n_1 to Rc_n_n and resistors Rd_n_1 to Rd_n_n, and the operation circuit is mainly composed of resistor Re_n, resistor Rf_n, resistor Rg_n, resistor Rh_n and operational amplifier Ub_nB, wherein the resistor Rh_n and capacitor Cc_n constitute an RC filter circuit, and n is an integer greater than 1.

[0011] As the preferred scheme of the multi-path segmented voltage adjustable control system in the cockpit of the airplane, the voltage regulator (the nth path) is composed of input voltage, ground terminal (GND), voltage processor (the nth path), resistor Ri_n, resistor Rj_n, resistor Rk_n, resistor Rm_n, resistor Rn_n, electronic switch Qa_n, diode Dc_n, capacitor Cd_n and capacitor Ce_n, wherein the input voltage is used as the input voltage of the voltage regulator, the ground terminal (GND) is used as the ground terminal of the voltage regulator (the nth path), the voltage processor (the nth path) (a three-terminal voltage regulator is used in this embodiment) is used to convert the input voltage into the required voltage output, the resistor Ri_n, the resistor Rj_n and the electronic switch Qa_n constitute a switching circuit, the capacitor Cd_1 and the capacitor Ce_1 constitute a filter circuit, and n is an integer greater than 1.

[0012] As the preferred scheme of the multi-path segmented voltage adjustable control system in the cockpit of the airplane, the voltage feedback circuit (the nth path) is composed of the resistor Ro_n and the resistor Rp_n, the required voltage output by the voltage regulator is divided by the resistor Ro_n and the resistor Rp_n, and then is fed back to the plus-minus operation circuit, and n is an integer greater than 1.

[0013] Compared with the prior art, the present application has at least the beneficial effect that the design of the multi-path segmented voltage adjustable control circuit is realized, and the requirement of adjusting the multi-path different voltage outputs by a single single-layer potentiometer is met. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 The circuit structure schematic diagram of an embodiment of the present application.

[0015] Fig. 2 The circuit schematic diagram of an embodiment of the present application. DETAILED DESCRIPTION

[0016] The present application will be further described in detail below by means of specific embodiments in connection with the drawings. It should be noted that the description of these embodiments is used to help understand the present application, but does not constitute a limitation on the present application. In addition, the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0017] Please refer to Figs. 1-2 , which shows a multi-path segmented voltage adjustable control system in the cockpit of an airplane.

[0018] The multi-path segmented voltage adjustable control system in the cockpit of the airplane is composed of one potentiometer circuit and two or more segmented voltage adjustable control circuits. Each segmented voltage adjustable control circuit has a voltage follower, a plus-minus operation unit, a voltage regulator and a voltage feedback unit.

[0019] Now, one segmented voltage adjustable control circuit will be taken as an example for specific description.

[0020] The potentiometer circuit: the potentiometer circuit is composed of a working power supply 1, a ground terminal (GND), a potentiometer Rx1, a resistor R1, a resistor R2, etc. Among them, the working power supply 1 (in this embodiment, a direct current 5V voltage) is used as the power supply of the potentiometer circuit. The ground terminal (GND) is used as the ground terminal of the potentiometer circuit. The potentiometer Rx1 is used as an adjusting device. The resistor R1 is used to ensure that the potentiometer circuit has a basic voltage output when the potentiometer Rx1 fails, and the resistor R2 is used to ensure that the potentiometer Rx1 has a voltage output in the dead zone.

[0021] The voltage follower (1st): the voltage follower (1st) is composed of working power supply 2, ground (GND), capacitor Ca_1, resistor Ra_1, operational amplifier Ua_1A, resistor Rb_1, etc. Among them, working power supply 2 (in this embodiment, direct current 15V voltage) is used as the power supply of the voltage follower (1st). Ground (GND) is used as the ground of the voltage follower (1st). The capacitor Ca_1 is used as the bypass capacitor of the operational amplifier Ua_1A.

[0022] The add-subtract operation circuit (1st): the add-subtract operation circuit (1st) is composed of a segmented selection control circuit, different segmented adjustment circuits and an operation circuit, etc. The segmented selection control circuit (in this embodiment, a multi-way knob switch) is used to selectively switch one segment of the different segmented voltage adjustment circuit as the working segment. The different segmented adjustment circuit is mainly composed of working power supply 3, ground (GND), resistors Rc_1_1 to Rc_1_n, resistors Rd_1_1 to Rd_1_n. Among them, working power supply 3 (in this embodiment, direct current 15V voltage) is used as the working power supply of the add-subtract operation circuit (1st 1st segment), and the different voltage segment voltage values output by the voltage regulator (1st) can be controlled with high precision by adjusting the resistance values of the resistors Rc_1_1 and the resistors Rd_1_1. The operation circuit is mainly composed of resistors Re_1, resistors Rf_1, resistors Rg_1, resistors Rh_1, operational amplifier Ub_1B. Among them, the resistor Rh_1 and the capacitor Cc_1 constitute an RC filter circuit.

[0023] The voltage regulator (1st): the voltage regulator (1st) is composed of input voltage, ground (GND), voltage processor (1st), resistor Ri_1, resistor Rj_1, resistor Rk_1, resistor Rm_1, resistor Rn_1, electronic switch Qa_1 (in this embodiment, MOS tube), diode Dc_1, capacitor Cd_1, capacitor Ce_1, etc. Among them, the input voltage is used as the input voltage of the voltage regulator, and the ground (GND) is used as the ground of the voltage regulator (1st). The voltage processor (1st) (in this embodiment, a three-terminal voltage regulator) is used to convert the input voltage into the required voltage output, the resistors Ri_1, the resistors Rj_1 and the electronic switch Qa_1 (in this embodiment, MOS tube) constitute a switching circuit, and the capacitor Cd_1 and the capacitor Ce_1 constitute a filter circuit.

[0024] The voltage feedback circuit (1st): the voltage feedback circuit (1st) is mainly composed of resistors Ro_1 and Rp_1. The required voltage output by the voltage regulator is divided by resistors Ro_1 and Rp_1, and then fed back to the add-subtract operation circuit.

[0025] The application has the characteristics of single single-layer potential regulator regulating multi-channel different voltage output, different segment voltage range being adjustable, high output voltage precision, and mutual non-interference between multi-channels.

[0026] The above only expresses the embodiments of the application, the description is more specific and detailed, but cannot be understood as the limitation of the patent scope of the application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the application, several modifications and improvements can be made, which belong to the protection scope of the application. Therefore, the protection scope of the patent of the application should be subject to the appended claims.

Claims

1. A multi-channel segmented voltage adjustable control system for aircraft cockpits, characterized in that, Includes, A single potentiometer circuit, used to provide only one potentiometer voltage; and, n-channel segmented voltage adjustable control circuits, each of which includes a voltage follower, an addition / subtraction operation unit, a voltage regulator, and a voltage feedback unit. The voltage follower outputs a corresponding following voltage based on the potentiometer voltage from the potentiometer circuit. The addition / subtraction operation unit outputs a corresponding control voltage based on the following voltage from the voltage follower and the feedback voltage from the voltage feedback unit. The voltage regulator outputs a corresponding adjustment voltage based on the control voltage from the addition / subtraction operation unit. The voltage feedback unit outputs a corresponding feedback voltage based on the adjustment voltage from the voltage regulator. The addition and subtraction unit includes a segment selection control circuit, different segment adjustment circuits, and an addition and subtraction operation circuit. The segment selection control circuit is used to selectively switch one segment of the different segment voltage adjustment circuits as the working segment and connect it to the addition and subtraction operation circuit. The first-channel addition / subtraction operation circuit consists of a segment selection control circuit, different segment adjustment circuits, and an operation circuit. The segment selection control circuit selectively switches one segment of the different segment voltage adjustment circuits as the working segment. The different segment adjustment circuits consist of a working power supply, ground GND, resistors Rc_1_1 to Rc_1_n, and resistors Rd_1_1 to Rd_1_n. The operation circuit mainly consists of resistors Re_1, Rf_1, Rg_1, Rh_1, and operational amplifier Ub_1B. Resistor Rh_1 and capacitor Cc_1 form an RC filter circuit. Similarly, the nth addition / subtraction operation circuit consists of a segment selection control circuit, different segment adjustment circuits, and an operation circuit. The segment selection control circuit is used to selectively switch one segment of the different segment voltage adjustment circuits as the working segment. The different segment adjustment circuits consist of a working power supply, ground GND, resistors Rc_n_1 to Rc_n_n, and resistors Rd_n_1 to Rd_n_n. The operation circuit mainly consists of resistors Re_n, Rf_n, Rg_n, Rh_n, and operational amplifier Ub_nB. Among them, resistor Rh_n and capacitor Cc_n form an RC filter circuit. n is an integer greater than 1.

2. The multi-channel segmented voltage adjustable control system for aircraft cockpits according to claim 1, characterized in that, The potentiometer circuit consists of a working power supply, ground GND, potentiometer Rx1, resistor R1, and resistor R2. The working power supply serves as the power source for the potentiometer circuit, ground GND serves as the ground terminal for the potentiometer circuit, potentiometer Rx1 serves as the adjustment device, resistor R1 ensures that the potentiometer circuit has a basic voltage output when potentiometer Rx1 fails, and resistor R2 ensures that potentiometer Rx1 has a voltage output in the dead range.

3. The multi-channel segmented voltage adjustable control system for aircraft cockpits according to claim 1, characterized in that, The first voltage follower consists of a second power supply, ground (GND), capacitor Ca_1, resistor Ra_1, and operational amplifier Ua_1A. The second power supply serves as the power source for the first voltage follower, GND serves as the ground terminal for the first voltage follower, and capacitor Ca_1 serves as a bypass capacitor for operational amplifier Ua_1A. Similarly, the nth voltage follower consists of a second power supply, ground (GND), capacitor Ca_n, resistor Ra_n, and operational amplifier Ua_nA. The second power supply serves as the power source for the nth voltage follower, GND serves as the ground terminal for the nth voltage follower, and capacitor Ca_n serves as a bypass capacitor for operational amplifier Ua_nA.

4. The multi-channel segmented voltage adjustable control system for aircraft cockpits according to claim 1, characterized in that, The first voltage regulator consists of an input voltage, ground (GND), a first-channel voltage processor, resistors Ri_1, Rj_1, Rk_1, Rm_1, Rn_1, an electronic switch Qa_1, a diode Dc_1, and capacitors Cd_1 and Ce_1. The input voltage is used as the input voltage for the first-channel voltage regulator, and GND is used as the ground terminal. The first-channel voltage processor converts the input voltage into the desired output voltage. Resistors Ri_1, Rj_1, and electronic switch Qa_1 form a switching circuit, and capacitors Cd_1 and Ce_1 form a filtering circuit. Similarly, the nth voltage regulator consists of an input voltage, ground GND, an nth voltage processor, resistors Ri_n, Rj_n, Rk_n, Rm_n, Rn_n, an electronic switch Qa_n, a diode Dc_n, a capacitor Cd_n, and a capacitor Ce_n. The input voltage is used as the input voltage for the nth voltage regulator, and ground GND is used as the ground terminal for the nth voltage regulator. The nth voltage processor converts the input voltage into the desired output voltage. Resistors Ri_n, Rj_n, and the electronic switch Qa_n constitute a switching circuit, and capacitors Cd_n and Ce_n constitute a filtering circuit.

5. The multi-channel segmented voltage adjustable control system for aircraft cockpits according to claim 1, characterized in that, The first voltage feedback circuit consists of resistors Ro_1 and Rp_1. Resistors Ro_1 and Rp_1 divide the voltage required by the voltage regulator output and feed it back to the addition / subtraction operation circuit. Similarly, the nth voltage feedback circuit consists of resistors Ro_n and Rp_n. Resistors Ro_n and Rp_n divide the voltage required by the voltage regulator output and feed it back to the addition / subtraction operation circuit.

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