CN215072341U - A relay debounce circuit and a detonation circuit used in a detonation module of pyrotechnics - Google Patents

A relay debounce circuit and a detonation circuit used in a detonation module of pyrotechnics Download PDF

Info

Publication number
CN215072341U
CN215072341U CN202120913201.6U CN202120913201U CN215072341U CN 215072341 U CN215072341 U CN 215072341U CN 202120913201 U CN202120913201 U CN 202120913201U CN 215072341 U CN215072341 U CN 215072341U
Authority
CN
China
Prior art keywords
relay
circuit
detonation
resistor
current limiting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202120913201.6U
Other languages
Chinese (zh)
Inventor
杨依衡
王嘉靖
毕林杰
汪嵩
王君召
谢霞明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Academy of Spaceflight Technology SAST
Original Assignee
Shanghai Academy of Spaceflight Technology SAST
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Academy of Spaceflight Technology SAST filed Critical Shanghai Academy of Spaceflight Technology SAST
Priority to CN202120913201.6U priority Critical patent/CN215072341U/en
Application granted granted Critical
Publication of CN215072341U publication Critical patent/CN215072341U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Abstract

本实用新型涉及一种用于火工品起爆模块中的继电器消抖电路及起爆电路。该电路与为MOS管G‑S端提供偏置电压的分压电阻R2相连。所述继电器消抖电路由继电器J、滤波电容Cx、限流电阻Rx组成。所述电路能够通过滤波电容Cx滤除继电器J闭合时与分压电阻R2相连的触点端的电压抖动,给起爆MOS管G极提供稳定的电压,加快起爆MOS管稳定开通的速度。同时还能够通过限流电阻Rx限制流经继电器的触点的电流,避免过流。

Figure 202120913201

The utility model relates to a relay de-jitter circuit and a detonation circuit used in a detonation module of pyrotechnics. This circuit is connected with the voltage divider resistor R 2 which provides the bias voltage for the G-S end of the MOS transistor. The relay debounce circuit is composed of a relay J, a filter capacitor Cx , and a current limiting resistor Rx. The circuit can filter the voltage jitter of the contact terminal connected to the voltage dividing resistor R2 when the relay J is closed through the filter capacitor Cx , provide a stable voltage to the G pole of the detonating MOS tube, and speed up the stable opening of the detonating MOS tube. At the same time, the current flowing through the contacts of the relay can be limited by the current limiting resistor Rx to avoid overcurrent.

Figure 202120913201

Description

Relay jitter elimination circuit for initiating explosive device detonation module and detonation circuit
Technical Field
The utility model relates to a space power supply technical field, concretely relates to a relay that is arranged in initiating explosive device detonation module disappears and trembles circuit.
Background
The initiating explosive device detonation module is an important component of a satellite power supply system and is used for driving initiating explosive devices to detonate, so that the solar wings of the satellite are opened, and the normal work of the satellite can be directly related. In order to ensure the accurate detonation of the initiating explosive device, the detonation module needs to provide a large current with a steep rising edge, so that the requirement on the switching-on speed of the detonation MOS tube is high. At present, a relay contact is directly connected with a divider resistor which provides bias voltage for a G-S end of an MOS tube without any treatment, and the method is a widely used method for controlling the opening of a detonation MOS tube. However, because the relay can generate mechanical vibration when being closed, the connection mode is difficult to provide stable voltage for the MOS transistor G pole in a reliable instant, and the stable opening speed of the MOS transistor is difficult to meet the requirement aiming at some types of initiating explosive devices.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a voltage jitter that brings because of mechanical shake when filtering relay is closed improves the stable speed of opening of initiating explosive device initiating MOS pipe in the initiating explosive device initiating module, and then guarantees the reliable initiating of initiating explosive device. The circuit consists of a resistor and a capacitor, which are common components in engineering, and is beneficial to product manufacturing.
The technical scheme is as follows:
a relay removes trembles circuit for in initiating explosive device detonation module, relay removes trembles circuit and includes relay J, filter capacitor CxAnd a current limiting resistor Rx
Filter capacitor CxOne end of the contact is connected with one end of a relay J, and the filter capacitor CxThe other end of the first and second electrodes is grounded;
current limiting resistor RxOne end is grounded and connected with a filter capacitor CxOne terminal of (1), a current limiting resistor RxThe other end of the relay is connected with a contact at the other end of the relay J; the contact at one end of the relay J is connected with the relay through a divider resistorAnd the grid of the detonation MOS tube in the ignition work piece detonation circuit is connected.
Filter capacitor CxThe value range of (a) is 10nf to 100 nf.
Current limiting resistor RxThe value of (A) is in the range of 20 to 200 ohm.
The relay type is 2JL 0.5-1.
An initiating explosive device detonation circuit using the relay jitter elimination circuit for the initiating explosive device detonation module further comprises: voltage dividing resistor R1A voltage dividing resistor R2Grid current limiting resistor RgAnd the equivalent resistance R of the initiating explosive deviceh
Voltage dividing resistor R1One end of the resistor is connected with a source electrode of the detonation MOS tube and a grid current-limiting resistor RgOne end of the resistor is connected with the grid of the detonation MOS tube, and the grid current-limiting resistor RgThe other end of the resistor is connected with a divider resistor R2One end of (1) and a voltage dividing resistor R1The other end of (1), a voltage dividing resistor R2The other end of the relay is connected with a contact at one end of a relay J;
the drain electrode of the detonation MOS tube is connected with an initiating explosive device equivalent resistor RhOne end of (1), an initiating explosive device equivalent resistance RhThe other end of the first and second electrodes is grounded;
and the source electrode of the detonation MOS tube is connected with the output positive end of the power supply.
Drawings
Fig. 1 is a basic schematic diagram of a relay debouncing circuit for use in an initiating explosive device detonation module.
Detailed Description
The relay jitter elimination circuit and the initiation circuit for use in the initiating explosive device initiating module according to the present invention will be described in further detail with reference to fig. 1.
A kind of relay used in initiating explosive device detonation module disappears and shakes the circuit, this circuit and divider resistor R providing bias voltage for MOS tube G-S end2Are connected. The relay jitter elimination circuit comprises a relay J and a filter capacitor CxAnd a current limiting resistor Rx
The circuit can pass through a filter capacitor CxWhen the filtering relay J is closed, the filtering relay J is connected with the divider resistor R2Connected contactsThe voltage of the end is jittered, so that stable voltage is provided for the grid electrode of the detonation MOS tube, the stable opening speed of the detonation MOS tube is accelerated, and meanwhile, the detonation MOS tube can also pass through the current-limiting resistor RxThe current flowing through the contact of the relay J is limited, and the overcurrent is avoided.
Filter capacitor CxOne end of the contact is connected with one end of a relay J, and the filter capacitor CxThe other end of the first and second electrodes is grounded; the device is used for filtering voltage jitter of the contact end when the relay contact is closed and accelerating the switching-on speed of the MOS tube.
Current limiting resistor RxOne end is grounded and connected with a filter capacitor CxOne terminal of (1), a current limiting resistor RxThe other end of the relay is connected with a contact at the other end of the relay J; limiting the current flowing through the contacts when the relay contacts are closed.
And a contact at one end of the relay J is connected with a grid electrode of an initiation MOS tube in the initiating explosive device initiation circuit through a voltage dividing resistor.
Filter capacitor CxThe value range of 10nf to 100nf, the embodiment of the utility model provides an in the embodiment of the filter capacitor CxThe value is 50 nf.
Current limiting resistor RxThe value range of the current limiting resistor R is 20-200 ohm, the embodiment of the utility model provides anxThe value is 110 ohm.
The relay type is 2JL 0.5-1.
An initiating explosive device detonation circuit using the relay jitter elimination circuit for the initiating explosive device detonation module comprises: voltage dividing resistor R1A voltage dividing resistor R2Grid current limiting resistor RgAnd the equivalent resistance R of the initiating explosive deviceh
Voltage dividing resistor R1One end of the resistor is connected with a source electrode of the detonation MOS tube and a grid current-limiting resistor RgOne end of the resistor is connected with the grid of the detonation MOS tube, and the grid current-limiting resistor RgThe other end of the resistor is connected with a divider resistor R2One end of (1) and a voltage dividing resistor R1The other end of (1), a voltage dividing resistor R2The other end of the relay is connected with a contact at one end of a relay J;
the drain electrode of the detonation MOS tube is connected with an initiating explosive device equivalent resistor RhOne end of (1), an initiating explosive device equivalent resistance RhThe other end of the first and second electrodes is grounded;
and the source electrode of the detonation MOS tube is connected with the output positive end of the power supply.
Examples
Circuit connection referring to FIG. 1, filter capacitor CxThe reference range of the value is 10 nf-100 nf, and the resistance RxThe value of the relay is determined according to the maximum current which can be borne by an electric shock of the relay, generally 20-200 ohm is selected, and the relay is selected as an electromagnetic relay.
Filter capacitor CxOne end connected with a voltage dividing resistor R2The other end of the relay contact is grounded. Current limiting resistor RxOne end is not connected with the divider resistor R2The other end of the relay contact is grounded. By the connection mode, the purposes of filtering the voltage jitter of the relay contact terminal, accelerating the stable switching-on speed of the MOS tube and limiting the current flowing through the contact are achieved.
In a practical project, the filter capacitor C is connectedxWith a value of 50nf (two 100nf connected in series), a current limiting resistor RxThe value is 110ohm, the relay is selected to be 2JL0.5-1, a good shake eliminating effect can be obtained, and the stable opening speed of the MOS tube can be obviously improved.
Although the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be construed as limiting the present invention, and that other variations and modifications which may occur to those skilled in the art without departing from the spirit and scope of the present invention are also within the scope of the present invention.

Claims (7)

1.一种用于火工品起爆模块中的继电器消抖电路,其特征在于:所述继电器消抖电路包括继电器J、滤波电容Cx和限流电阻Rx1. a relay debounce circuit for use in an explosive device detonating module, is characterized in that: the relay debounce circuit comprises relay J, filter capacitor C x and current limiting resistor R x ; 滤波电容Cx一端连接继电器J一端的触点,滤波电容Cx的另一端接地;One end of the filter capacitor C x is connected to the contact at one end of the relay J, and the other end of the filter capacitor C x is grounded; 限流电阻Rx一端接地并连接滤波电容Cx的一端,限流电阻Rx的另一端连接继电器J另一端的触点;One end of the current limiting resistor R x is grounded and connected to one end of the filter capacitor C x , and the other end of the current limiting resistor R x is connected to the contact of the other end of the relay J; 继电器J一端的触点通过分压电阻连接火工品起爆电路中起爆MOS管的栅极。The contact at one end of the relay J is connected to the grid of the detonating MOS tube in the detonating circuit of the pyrotechnic material through a voltage dividing resistor. 2.根据权利要求1所述的一种用于火工品起爆模块中的继电器消抖电路,其特征在于:滤波电容Cx的取值范围为10nf~100nf。2 . The relay debouncing circuit used in the detonation module of the pyrotechnic product according to claim 1 , wherein the value range of the filter capacitor Cx is 10nf~100nf. 3 . 3.根据权利要求2所述的一种用于火工品起爆模块中的继电器消抖电路,其特征在于:滤波电容Cx取值为50nf。3 . The relay debouncing circuit used in the detonation module of the pyrotechnic product according to claim 2 , wherein the filter capacitor C x is 50nf. 4 . 4.根据权利要求1所述的一种用于火工品起爆模块中的继电器消抖电路,其特征在于:限流电阻Rx的取值范围为20ohm~200ohm。4 . The relay de-jitter circuit for use in a detonation module of an explosive device according to claim 1 , wherein the value range of the current limiting resistor Rx is 20ohm-200ohm. 5 . 5.根据权利要求4所述的一种用于火工品起爆模块中的继电器消抖电路,其特征在于:限流电阻Rx取值为110ohm。5 . The relay debouncing circuit used in the detonation module of an explosive device according to claim 4 , wherein the value of the current limiting resistor R x is 110 ohm. 6 . 6.根据权利要求1~5任意一项所述的一种用于火工品起爆模块中的继电器消抖电路,其特征在于:继电器选型为2JL0.5-1。6 . The relay debouncing circuit for use in a pyrotechnic detonation module according to any one of claims 1 to 5 , wherein the relay is selected as 2JL0.5-1. 7 . 7.利用如权利要求6所述的一种用于火工品起爆模块中的继电器消抖电路的一种火工品起爆电路,其特征在于,还包括:分压电阻R1、分压电阻R2、栅极限流电阻Rg、火工品等效电阻Rh7. Utilize a kind of pyrotechnic device detonation circuit for the relay debouncing circuit in the pyrotechnic device detonation module as claimed in claim 6, it is characterized in that, also comprises: divider resistor R 1 , divider resistor R 2 , the gate current limiting resistance R g , the equivalent resistance of the pyrotechnic product R h ; 分压电阻R1的一端连接起爆MOS管的源极,栅极限流电阻Rg的一端连接起爆MOS管的栅极,栅极限流电阻Rg的另一端连接分压电阻R2的一端和分压电阻R1的另一端,分压电阻R2的另一端连接继电器J一端的触点; One end of the voltage dividing resistor R1 is connected to the source of the detonating MOS tube, one end of the gate current limiting resistor Rg is connected to the gate of the detonating MOS tube, and the other end of the gate current limiting resistor Rg is connected to one end of the voltage dividing resistor R2 and the divider. The other end of the piezoresistor R1, the other end of the divider resistor R2 is connected to the contact of one end of the relay J; 起爆MOS管的漏极连接火工品等效电阻Rh的一端,火工品等效电阻Rh的另一端接地;The drain of the detonating MOS tube is connected to one end of the equivalent resistance R h of the pyrotechnic product, and the other end of the equivalent resistance R h of the pyrotechnic product is grounded; 起爆MOS管的源极连接供电电源的输出正端。The source of the detonating MOS tube is connected to the positive output terminal of the power supply.
CN202120913201.6U 2021-04-29 2021-04-29 A relay debounce circuit and a detonation circuit used in a detonation module of pyrotechnics Active CN215072341U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120913201.6U CN215072341U (en) 2021-04-29 2021-04-29 A relay debounce circuit and a detonation circuit used in a detonation module of pyrotechnics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120913201.6U CN215072341U (en) 2021-04-29 2021-04-29 A relay debounce circuit and a detonation circuit used in a detonation module of pyrotechnics

Publications (1)

Publication Number Publication Date
CN215072341U true CN215072341U (en) 2021-12-07

Family

ID=79107569

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120913201.6U Active CN215072341U (en) 2021-04-29 2021-04-29 A relay debounce circuit and a detonation circuit used in a detonation module of pyrotechnics

Country Status (1)

Country Link
CN (1) CN215072341U (en)

Similar Documents

Publication Publication Date Title
CN105187036B (en) A kind of pulse bandwidth filtering circuit and its method
JP6291929B2 (en) Semiconductor device
CN109450425A (en) A kind of key Anti-shaking circuit
CN215072341U (en) A relay debounce circuit and a detonation circuit used in a detonation module of pyrotechnics
CN105317611B (en) semiconductor device
US3282632A (en) Capacitor firing circuit with automatic reset
CN108599741B (en) Square wave generator with controllable duty cycle
CN105423339A (en) Pulse ignition control circuit and gas stove
CN102237675A (en) Electronic device
CN110958005A (en) A debounce circuit of a key switch
CN217768292U (en) A multi-stage high-voltage pulse generator and multi-stage focusing device for time-of-flight mass spectrometer
CN106643347B (en) A kind of customizable circuit system of large bulk capacitance detonation priming system discharge curve
CN214707671U (en) Control circuit and chip of intelligent low-side power switch
CN101729048A (en) Delay circuit
CN210866052U (en) Relay switching circuit with higher speed
CN211296699U (en) Jitter elimination circuit of key switch
CN100564867C (en) A kind of motorcycle in-coming angle igniter dedicated integrated circuit and trigger input circuit
CN116436132B (en) Charging circuit and charging method
CN205945985U (en) A switch mute circuit
SU782132A1 (en) Device for shaping control pulses for thyristor
CN115632541B (en) Self-adaptive no-signal time control circuit
GB939599A (en) Improvements in or relating to monostable transistorized trigger circuits
CN111245408B (en) Duty ratio clamping circuit
CN111384847B (en) Power-on protection circuit of direct-current power supply, method for driving load circuit and electronic equipment
CN110645850B (en) Detonation control system and control method based on RC time delay

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant