A Dual-Ignition Pulse Output Circuit and Method

Abstract

An embodiment of the present invention discloses a dual-ignition pulse output circuit and method. The circuit includes a first relay and a second relay, with an ignition control signal as the input; a third relay coupled to the first relay; a delay relay coupled to the third relay; and a fourth relay coupled to the delay relay. The positive poles of the coils of the first relay and the second relay are respectively connected to a first power supply, and the negative poles respectively receive the ignition control signal. The positive poles of the coils of the third relay, the delay relay, and the fourth relay are respectively connected to the positive pole of a second power supply, and the negative poles are respectively connected to the negative pole of the second power supply through the contacts of each relay. This circuit only requires one ground computer pulse control signal to generate two ignition pulses, and the generation of the second ignition pulse does not require power supply from the ground power supply.

Description

Technical Field

[0001] The present invention relates to the field of aircraft launch control. More specifically, it relates to a dual ignition pulse output circuit and method. Background Art

[0002] Currently, aircraft ignition is controlled by a ground computer outputting a single path of pulse control signal to drive the ignition pulse output circuit to generate the ignition pulse. When multiple ignition pulses are required, the computer needs to output multiple paths of pulse control signals, resulting in waste of ground power resources and increased complexity of the circuit structure.

[0003] Therefore, there is an urgent need to propose a dual ignition pulse output circuit that outputs two ignition pulse circuits successively by giving a single path of ignition control signal from the ground. Summary of the Invention

[0004] The purpose of the present invention is to provide a dual ignition pulse output circuit and method to solve at least one of the problems existing in the prior art.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The first aspect of the present invention provides a dual ignition pulse output circuit, which includes

[0007] A first relay and a second relay, taking the ignition control signal as the input;

[0008] A third relay coupled to the first relay;

[0009] A delay relay coupled to the third relay; and

[0010] A fourth relay coupled to the delay relay, where

[0011] The positive poles of the coils of the first relay and the second relay are respectively connected to the first power supply, and the negative poles respectively receive the ignition control signal;

[0012] The positive poles of the coils of the third relay, the delay relay, and the fourth relay are respectively connected to the positive pole of the second power supply, and the negative poles are respectively connected to the negative pole of the second power supply through the contacts of each relay.

[0013] Optionally, the circuit further includes a first diode, a second diode, and a third diode; where

[0014] The positive pole of the coil of the first relay is connected to the cathode of the first diode;

[0015] The negative pole of the coil of the first relay is connected to the anode of the first diode;

[0016] The positive electrode of the second relay coil is connected to the cathode of the second diode;

[0017] The negative electrode of the second relay coil is connected to the anode of the second diode;

[0018] The anode of the third diode is connected to the negative electrode of the first relay coil and the anode of the first diode;

[0019] The cathode of the third diode is connected to the negative electrode of the second relay coil and the anode of the second diode.

[0020] Optionally, the cathode of the first diode is connected to the first power supply, the positive electrode of the first relay coil is connected to the positive electrode of the second relay coil, and the cathode of the third diode, the negative electrode of the second relay coil, and the anode of the second diode receive the ignition control signal.

[0021] Optionally, the circuit further includes a fourth diode and a fifth diode; wherein

[0022] The positive electrode of the third relay coil is connected to the cathode of the fourth diode;

[0023] The negative electrode of the third relay coil is connected to the anode of the fourth diode;

[0024] The positive electrode of the fourth relay coil is connected to the cathode of the fifth diode;

[0025] The negative electrode of the fourth relay coil is connected to the anode of the fifth diode.

[0026] Optionally, the first end of the first set of contacts of the first relay is connected to the first end of the first set of contacts of the third relay, the second end of the first set of contacts of the first relay is left floating, and the third end of the first set of contacts of the first relay is connected to the negative electrode of the third relay coil, the anode of the fourth diode, and the third end of the first set of contacts of the third relay;

[0027] The first end of the first set of contacts of the third relay is connected to the first end of the second set of contacts of the third relay, the second end of the first set of contacts of the third relay is left floating, and the third end of the first set of contacts of the third relay is connected to the third end of the second set of contacts of the third relay;

[0028] The first end of the second set of contacts of the third relay is connected to the first end of the first set of contacts of the delay relay, the second end of the second set of contacts of the third relay is left floating, and the third end of the second set of contacts of the third relay is connected to the negative electrode of the delay relay coil;

[0029] The first end of the first set of contacts of the time-delay relay is connected to the negative pole of the second power supply, the second end of the first set of contacts of the time-delay relay is left floating, and the third end of the first set of contacts of the time-delay relay is connected to the negative pole of the fourth relay coil and the anode of the fifth diode;

[0030] The positive pole of the fourth relay coil is connected to the positive pole of the time-delay relay coil, and the positive pole of the time-delay relay coil is connected to the positive pole of the third relay coil, the cathode of the fourth diode, and the positive pole of the second power supply.

[0031] Optionally, the first end of the first set of contacts of the second relay is connected to the positive pole of the second power supply, the second end of the first set of contacts of the second relay is left floating, and the third end of the first set of contacts of the second relay is connected to the positive pole output end of the first ignition pulse signal;

[0032] The first end of the second set of contacts of the second relay is connected to the negative pole of the second power supply, the second end of the second set of contacts of the second relay is left floating, and the third end of the second set of contacts of the second relay is connected to the negative pole output end of the first ignition pulse signal.

[0033] Optionally, the first end of the first set of contacts of the fourth relay is connected to the positive pole of the second power supply, the second end of the first set of contacts of the fourth relay is left floating, and the third end of the first set of contacts of the fourth relay is connected to the positive pole output end of the second ignition pulse signal;

[0034] The first end of the second set of contacts of the fourth relay is connected to the negative pole of the second power supply, the second end of the second set of contacts of the fourth relay is left floating, and the third end of the second set of contacts of the fourth relay is connected to the negative pole output end of the second ignition pulse signal.

[0035] Optionally, the first power supply includes a ground power supply, and the second power supply includes an aircraft power supply.

[0036] Optionally, the first diode, the second diode, the fourth diode, and the fifth diode are respectively used to suppress transient voltages, and the third diode is used to prevent current backflow.

[0037] A second aspect of the present invention provides a dual ignition pulse output method, and this method includes

[0038] Using a first relay and a second relay with an ignition control signal as the input;

[0039] Using a third relay coupled to the first relay; a time-delay relay coupled to the third relay; and a fourth relay coupled to the time-delay relay to output a dual-channel ignition pulse signal; where

[0040] The positive electrodes of the first relay coil and the second relay coil are respectively connected to a first power supply, and the negative electrodes respectively receive the ignition control signal;

[0041] The positive electrodes of the third relay coil, the delay relay coil and the fourth relay coil are respectively connected to the positive electrode of a second power supply, and the negative electrodes are respectively connected to the negative electrode of the second power supply through the contacts of the respective relays.

[0042] The beneficial effects of the present invention are as follows:

[0043] A dual ignition pulse output circuit disclosed by the present invention only requires a ground computer pulse control signal to generate two ignition pulses, and the generation of the second ignition pulse does not require power supply from the ground power supply. Description of the Drawings

[0044] The following further elaborates in detail on the specific embodiments of the present invention with reference to the drawings.

[0045] Figure 1 The structure diagram of the dual ignition pulse output circuit provided by the embodiment of the present invention is shown.

[0046] Figure 2 The output timing diagram of the dual ignition pulse output circuit provided by the embodiment of the present invention is shown. Specific Embodiments

[0047] To more clearly illustrate the present invention, the present invention will be further described below in conjunction with embodiments and the drawings. Similar components in the drawings are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not be used to limit the protection scope of the present invention.

[0048] Currently, aircraft ignition is driven by a ground computer outputting a single pulse control signal to drive an ignition pulse output circuit to control the generation of ignition pulses. When multiple ignition pulses are required, the computer needs to output multiple pulse control signals, resulting in waste of ground power resources and increased complexity of the circuit structure.

[0049] In view of this, an embodiment of the present invention provides a dual-ignition pulse output circuit, which includes a first relay and a second relay, taking an ignition control signal as an input; a third relay coupled to the first relay; a time-delay relay coupled to the third relay; and a fourth relay coupled to the time-delay relay, wherein the positive electrodes of the coils of the first relay and the second relay are respectively connected to a first power supply, and the negative electrodes respectively receive the ignition control signal; the positive electrodes of the coils of the third relay, the time-delay relay and the fourth relay are respectively connected to the positive electrode of a second power supply, and the negative electrodes are respectively connected to the negative electrode of the second power supply through the contacts of each relay.

[0050] Specifically, the circuit includes that in response to an ignition control signal with a first duration of T1 ms, the coils K23A and K11A of the first and second relays act; after the first and second sets of contacts K11B and K11D of the second relay are closed, a first ignition pulse signal is output; after the first set of contacts K23C of the first relay is closed, the coil K22A of the third relay acts; after the first and second sets of contacts K22B and K22C of the third relay are closed, the coil K3A of the time-delay relay acts after a second duration of T2 ms and remains closed for a third duration of T3 ms and then disconnects; the coil K13A of the fourth relay follows the action of the time-delay relay, and after the first and second sets of contacts K13B and K13D of the fourth relay are closed, a second ignition pulse signal is output.

[0051] Further, the first and second relays are powered by a ground power supply; the third relay, the time-delay relay and the fourth relay are powered by an aircraft power supply. A dual-ignition pulse output circuit includes an ignition control signal given by a ground computer, the ground power supply powers the relays K23 and K11, the aircraft power supply powers the relays K22, K13 and the time-delay relay K3, and the peripheral circuit is mainly composed of anti-recoil diodes.

[0052] In a possible implementation, the circuit further includes a first diode, a second diode and a third diode; wherein the positive electrode of the coil of the first relay is connected to the cathode of the first diode; the negative electrode of the coil of the first relay is connected to the anode of the first diode; the positive electrode of the coil of the second relay is connected to the cathode of the second diode; the negative electrode of the coil of the second relay is connected to the anode of the second diode; the anode of the third diode is connected to the negative electrode of the coil of the first relay and the anode of the first diode; the cathode of the third diode is connected to the negative electrode of the coil of the second relay and the anode of the second diode.

[0053] In a possible implementation, the cathode of the first diode is connected to the first power supply, the positive pole of the first relay coil is connected to the positive pole of the second relay coil, and the cathode of the third diode, the negative pole of the second relay coil, and the anode of the second diode receive the ignition control signal.

[0054] In a possible implementation, the circuit further includes a fourth diode and a fifth diode; wherein the positive pole of the third relay coil is connected to the cathode of the fourth diode; the negative pole of the third relay coil is connected to the anode of the fourth diode; the positive pole of the fourth relay coil is connected to the cathode of the fifth diode; the negative pole of the fourth relay coil is connected to the anode of the fifth diode.

[0055] Specifically, the circuit further includes an anti-backflow diode V31 and transient suppression diodes V33, V11, V21, and V13.

[0056] In a possible implementation, the first end of the first set of contacts of the first relay is connected to the first end of the first set of contacts of the third relay, the second end of the first set of contacts of the first relay is left floating, and the third end of the first set of contacts of the first relay is connected to the negative pole of the third relay coil, the anode of the fourth diode, and the third end of the first set of contacts of the third relay;

[0057] The first end of the first set of contacts of the third relay is connected to the first end of the second set of contacts of the third relay, the second end of the first set of contacts of the third relay is left floating, and the third end of the first set of contacts of the third relay is connected to the third end of the second set of contacts of the third relay;

[0058] The first end of the second set of contacts of the third relay is connected to the first end of the first set of contacts of the delay relay, the second end of the second set of contacts of the third relay is left floating, and the third end of the second set of contacts of the third relay is connected to the negative pole of the delay relay coil;

[0059] The first end of the first set of contacts of the delay relay is connected to the negative pole of the second power supply, the second end of the first set of contacts of the delay relay is left floating, and the third end of the first set of contacts of the delay relay is connected to the negative pole of the fourth relay coil and the anode of the fifth diode;

[0060] The positive pole of the fourth relay coil is connected to the positive pole of the delay relay coil, and the positive pole of the delay relay coil is connected to the positive pole of the third relay coil, the cathode of the fourth diode, and the positive pole of the second power supply.

[0061] Specifically, as Figure 1The figure shows a schematic structural diagram of a dual ignition pulse output circuit provided by an embodiment of the present invention. The coils of relays K11 and K23 are powered by a ground power supply. Diodes V11 and V33 are transient suppression diodes for the relays, and V31 is an anti-backflow diode.

[0062] The negative electrodes of the coils of relays K22 and K3 are connected to the aircraft power ground through two sets of contacts K22B and K22C of K22 and one set of contacts K23C of K23. The negative electrode of the coil of relay K13 is connected to the aircraft power ground through one set of contacts K3C of K3. The positive electrodes of the coils of K22, K3, and K13 are connected to the positive of the aircraft power supply.

[0063] Further, after the first and second sets of contacts of the third relay are closed, the third relay self-holds.

[0064] In a possible implementation, the first end of the first set of contacts of the second relay is connected to the positive pole of the second power supply, the second end of the first set of contacts of the second relay is left floating, and the third end of the first set of contacts of the second relay is connected to the positive output terminal of the first ignition pulse signal;

[0065] The first end of the second set of contacts of the second relay is connected to the negative pole of the second power supply, the second end of the second set of contacts of the second relay is left floating, and the third end of the second set of contacts of the second relay is connected to the negative output terminal of the first ignition pulse signal.

[0066] In a possible implementation, the first end of the first set of contacts of the fourth relay is connected to the positive pole of the second power supply, the second end of the first set of contacts of the fourth relay is left floating, and the third end of the first set of contacts of the fourth relay is connected to the positive output terminal of the second ignition pulse signal;

[0067] The first end of the second set of contacts of the fourth relay is connected to the negative pole of the second power supply, the second end of the second set of contacts of the fourth relay is left floating, and the third end of the second set of contacts of the fourth relay is connected to the negative output terminal of the second ignition pulse signal.

[0068] Specifically, as Figure 2 The figure shows the output timing diagram of the dual ignition pulse output circuit provided by an embodiment of the present invention. The computer gives a pulse width of T1ms. The coils of relays K23 and K11 act, and the corresponding contacts K11B and K11D close, thereby outputting an ignition pulse 1 of T1ms. At the same time, the contact K23C closes, the K22 relay acts, the contacts K22B and K22C close, the relay K22 self-holds, the coil of K3 is conducted to the aircraft power ground, K3 acts after a delay of T2ms and remains for T3ms and then disconnects. When K3 acts, K13 also acts accordingly, thereby outputting an ignition pulse 2 of T3ms.

[0069] In a possible implementation, the first power supply includes a ground power supply, and the second power supply includes an aircraft power supply.

[0070] In a possible implementation, the first diode, the second diode, the fourth diode, and the fifth diode are respectively used to suppress transient voltage, and the third diode is used to prevent current backflow.

[0071] A dual ignition pulse output circuit disclosed in this embodiment only requires a ground computer pulse control signal to generate two ignition pulses, and the generation of the second ignition pulse does not require power supply from the ground power supply.

[0072] The second embodiment of the present invention provides a dual ignition pulse output method, which includes using a first relay and a second relay with an ignition control signal as the input; using a third relay coupled to the first relay; a delay relay coupled to the third relay; and a fourth relay coupled to the delay relay to output a dual-channel ignition pulse signal; wherein the positive poles of the coils of the first relay and the second relay are respectively connected to a first power supply, and the negative poles respectively receive the ignition control signal; the positive poles of the coils of the third relay, the delay relay, and the fourth relay are respectively connected to the positive pole of a second power supply, and the negative poles are respectively connected to the negative pole of the second power supply through the contacts of each relay.

[0073] Specifically, in response to an ignition control signal of a first duration, the coils of the first and second relays act; after the first and second sets of contacts of the second relay are closed, a first ignition pulse signal is output; after the first set of contacts of the first relay is closed, the coil of the third relay acts; after the first and second sets of contacts of the third relay are closed, the delay relay delays for a second duration and then the coil acts and remains for a third duration and then disconnects; the coil of the fourth relay follows the action of the delay relay, and after the first and second sets of contacts of the fourth relay are closed, a second ignition pulse signal is output.

[0074] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. Unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0075] It should also be noted that in the description of the present invention, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0076] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation manners here. Any obvious changes or modifications derived from the technical solutions of the present invention still fall within the protection scope of the present invention.

Claims

1. A dual-ignition pulse output circuit, characterized in that, The circuit includes a first relay and a second relay, with an ignition control signal as the input; a third relay coupled to the first relay; a time-delay relay coupled to the third relay; and a fourth relay coupled to the time-delay relay, where the positive poles of the coils of the first relay and the second relay are respectively connected to a first power supply, and the negative poles respectively receive the ignition control signal; the positive poles of the coils of the third relay, the time-delay relay, and the fourth relay are respectively connected to the positive pole of a second power supply, and the negative poles are respectively connected to the negative pole of the second power supply through the contacts of each relay; the circuit further includes a first diode, a second diode, and a third diode; where the positive pole of the coil of the first relay is connected to the cathode of the first diode; the negative pole of the coil of the first relay is connected to the anode of the first diode; the positive pole of the coil of the second relay is connected to the cathode of the second diode; the negative pole of the coil of the second relay is connected to the anode of the second diode; the anode of the third diode is connected to the negative pole of the coil of the first relay and the anode of the first diode; the cathode of the third diode is connected to the negative pole of the coil of the second relay and the anode of the second diode; the cathode of the first diode is connected to the first power supply, the positive pole of the coil of the first relay is connected to the positive pole of the coil of the second relay, and the cathode of the third diode, the negative pole of the coil of the second relay, and the anode of the second diode receive the ignition control signal; the circuit further includes a fourth diode and a fifth diode; where the positive pole of the coil of the third relay is connected to the cathode of the fourth diode; the negative pole of the coil of the third relay is connected to the anode of the fourth diode; the positive pole of the coil of the fourth relay is connected to the cathode of the fifth diode; the negative pole of the coil of the fourth relay is connected to the anode of the fifth diode.

2. The dual-ignition pulse output circuit according to claim 1, wherein the first end of the first set of contacts of the first relay is connected to the first end of the first set of contacts of the third relay, the second end of the first set of contacts of the first relay is left floating, and the third end of the first set of contacts of the first relay is connected to the negative pole of the coil of the third relay, the anode of the fourth diode, and the third end of the first set of contacts of the third relay; the first end of the first set of contacts of the third relay is connected to the first end of the second set of contacts of the third relay, the second end of the first set of contacts of the third relay is left floating, and the third end of the first set of contacts of the third relay is connected to the third end of the second set of contacts of the third relay; the first end of the second set of contacts of the third relay is connected to the first end of the first set of contacts of the time-delay relay, the second end of the second set of contacts of the third relay is left floating, and the third end of the second set of contacts of the third relay is connected to the negative pole of the coil of the time-delay relay; The first end of the first set of contacts of the time-delay relay is connected to the negative pole of the second power supply, the second end of the first set of contacts of the time-delay relay is left floating, and the third end of the first set of contacts of the time-delay relay is connected to the negative pole of the fourth relay coil and the anode of the fifth diode; The positive pole of the fourth relay coil is connected to the positive pole of the time-delay relay coil, and the positive pole of the time-delay relay coil is connected to the positive pole of the third relay coil, the cathode of the fourth diode, and the positive pole of the second power supply.

3. The dual ignition pulse output circuit according to claim 2, wherein The first end of the first set of contacts of the second relay is connected to the positive pole of the second power supply, the second end of the first set of contacts of the second relay is left floating, and the third end of the first set of contacts of the second relay is connected to the positive pole output terminal of the first ignition pulse signal; The first end of the second set of contacts of the second relay is connected to the negative pole of the second power supply, the second end of the second set of contacts of the second relay is left floating, and the third end of the second set of contacts of the second relay is connected to the negative pole output terminal of the first ignition pulse signal.

4. The dual ignition pulse output circuit according to claim 3, wherein The first end of the first set of contacts of the fourth relay is connected to the positive pole of the second power supply, the second end of the first set of contacts of the fourth relay is left floating, and the third end of the first set of contacts of the fourth relay is connected to the positive pole output terminal of the second ignition pulse signal; The first end of the second set of contacts of the fourth relay is connected to the negative pole of the second power supply, the second end of the second set of contacts of the fourth relay is left floating, and the third end of the second set of contacts of the fourth relay is connected to the negative pole output terminal of the second ignition pulse signal.

5. The dual ignition pulse output circuit according to claim 4, wherein, The first power supply includes a ground power supply, and the second power supply includes an aircraft power supply.

6. The dual ignition pulse output circuit according to claim 5, wherein, The first diode, the second diode, the fourth diode, and the fifth diode are respectively used to suppress transient voltages, and the third diode is used to prevent current backflow.

7. A dual ignition pulse output method for a dual ignition pulse output circuit according to any one of claims 1-6, characterized in that, The method includes Using a first relay and a second relay with the ignition control signal as the input; Using a third relay coupled to the first relay; a time-delay relay coupled to the third relay; And a fourth relay coupled to the time-delay relay to output a dual-channel ignition pulse signal; Wherein The positive poles of the first relay coil and the second relay coil are respectively connected to the first power supply, and the negative poles respectively receive the ignition control signal; The positive poles of the third relay coil, the time-delay relay coil, and the fourth relay coil are respectively connected to the positive pole of the second power supply, and the negative poles are respectively connected to the negative pole of the second power supply through the contacts of each relay.

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