CN109524940A - The super temperature data line of electronic overcurrent protects device - Google Patents
The super temperature data line of electronic overcurrent protects device Download PDFInfo
- Publication number
- CN109524940A CN109524940A CN201710872877.3A CN201710872877A CN109524940A CN 109524940 A CN109524940 A CN 109524940A CN 201710872877 A CN201710872877 A CN 201710872877A CN 109524940 A CN109524940 A CN 109524940A
- Authority
- CN
- China
- Prior art keywords
- resistance
- triode
- pole
- feet
- foot
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 230000003321 amplification Effects 0.000 claims abstract description 5
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 5
- 239000003990 capacitor Substances 0.000 claims description 24
- 230000005611 electricity Effects 0.000 claims description 9
- 230000000087 stabilizing effect Effects 0.000 claims description 2
- 229910002056 binary alloy Inorganic materials 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract 1
- 230000007423 decrease Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
- H02H3/081—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current and depending on the direction
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/06—Details with automatic reconnection
- H02H3/066—Reconnection being a consequence of eliminating the fault which caused disconnection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
- H02H3/087—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current for dc applications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
- H02H5/041—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature additionally responsive to excess current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
- H02H5/042—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature using temperature dependent resistors
Landscapes
- Amplifiers (AREA)
Abstract
The super temperature data line of electronic overcurrent of a kind of pair of different voltages level data line protection protects device.Pass through the electric current in working in constantly detection data line; it is divided into three sections of three kinds of delay times according to size of current; the guard mode of data line is controlled by the comparison amplification to current feedback signal; the temperature of Simultaneous Monitoring data cable plug; protect electric equipment products during the work time from overcurrent, the damage of short circuit and plug overtemperature degree; electric equipment products scrap and explode caused by avoiding because of overcurrent, short circuit with plug overtemperature degree; not only realize data line enter protection after by disconnect is again coupled to restore normal function, while ensure electric equipment products using safe.
Description
Technical field
The present invention relates to the insurance devices of a kind of pair of different voltages level data line protection, protect especially by data line
During the work time from overcurrent, the damage of short circuit and overtemperature degree, realization data line enters after protection by disconnected electric equipment products
Open the super temperature data line protection device of the electronic overcurrent for being again coupled to restore normal function.
Background technique
Currently, what known application was transmitted in the charging of mobile phone, tablet computer, laptop and digital product or data
USB data line, mainly Type-C connection data line.And the protection on Type-C connection data cable plug is applied to be mainly
PTC, but since PTC itself is thermo-sensitive material, influenced by ambient temperature bigger, operating time of protection is also slow, repeatedly after movement
Internal resistance changes greatly, and when environment temperature is relatively high, and the holding electric current of PTC will decline, and affects the logical of data line
Overcurrent, and it is unstable, PTC is also difficult to accomplish the product of high-voltage large current at present.It is a by high current currently not yet,
High voltage, actuation time is fast, not influenced by ambient temperature, and repeatedly movement internal resistance is used for a long time and does not change, is suitble to different voltages
The data line of grade protects integrated IC device.
Summary of the invention
Device bigger, operating time of protection influenced by ambient temperature is protected in available data line slowly, repeatedly in order to overcome
Internal resistance increases, keeps electric current decline after movement, affect data line by electric current, it is and unstable, it is also difficult to accomplish high electricity
The deficiency of high current product is pressed, the present invention provides a kind of super temperature data line protection device of electronic overcurrent, the electronic overcurrent overtemperature
Spend charging or data biography that data line protection device can not only be suitable for mobile phone, tablet computer, laptop and digital product
It is defeated, the protection device in Type-C connection data line is substituted, and not influenced by ambient temperature, quick action, internal resistance will not
Change, remained unchanged by rated current, temperature protection it is reliable and stable, overcurrent, short circuit with super temperature protection function, protect
After shield can by disconnect and be again coupled to restore normal function, the device activity service life 100,000 times.
The technical solution adopted by the present invention to solve the technical problems is: in protection device, electric current flows to end from terminal 1
Son 2 claims forward current, and electric current flows to terminal 1 from terminal 2 and claims reverse current, and terminal 3 is grounded, by the 2 of comparison amplifier IC3-1,3
Foot compares one section of detection positive primary overload current, and 2,3 feet of comparison amplifier IC4-1 compare one section of detection reversed primary overload
Electric current, 5,6 feet of comparison amplifier IC3-2, which compare, detects two sections of advanced overload currents of forward direction, and 5, the 6 of comparison amplifier IC4-2
Foot compares two sections of reversed advanced overload currents of detection, and 9,10 feet of comparison amplifier IC3-3 compare three sections of detection positive short circuit electricity
Stream, 9,10 feet of comparison amplifier IC4-3 compare three sections of reversed short circuit currents of detection；When detecting primary overload forward or backwards
Electric current, comparison amplifier IC3-1 or the overturning of comparison amplifier IC4-1 circuit, comparison amplifier IC3-1 or comparison amplifier IC4-
11 foot exports high potential, releases binary counter IC2 through triode V10, V2 and V1 and resets, binary counter IC2 is opened
Beginning timing, then timing output loop is connected to V4 through triode V7, timing time arrives, by triode V24 and V20 or triode
The G electrode potential for dragging down MOSFET pipe Q2 or Q1 is connected with V18 by V22, and the cut-off of MOSFET pipe disconnects current supply circuit；When forward or backwards
Detect advanced overload current, comparison amplifier IC3-2 or the overturning of comparison amplifier IC4-2 circuit, comparison amplifier IC3-2 or
7 feet of comparison amplifier IC4-2 export high potential, release binary counter IC2 through triode V11, V2 and V1 and reset, two into
Counter IC2 processed starts timing, then timing output loop is connected to V5 through triode V8, and timing time arrives, by triode V24 with
The G electrode potential for dragging down MOSFET pipe Q2 or Q1 is connected with V18 by V20 or triode V22, and the cut-off of MOSFET pipe disconnects current supply circuit；
When detecting short circuit current, comparison amplifier IC3-3 or the overturning of comparison amplifier IC4-3 circuit forward or backwards, compare amplification
8 feet of device IC3-3 or comparison amplifier IC4-3 export high potential, release binary counter IC2 through triode V12, V2 and V1
It resets, binary counter IC2 starts timing, then timing output loop is connected to V6 through triode V9, and timing time arrives, by three
The G electrode potential for dragging down MOSFET pipe Q2 or Q1 is connected with V20 or triode V22 with V18 by pole pipe V24, and the cut-off of MOSFET pipe disconnects
Current supply circuit.Time base circuit IC1 forms high frequency oscillator, forms two voltage-multiplying circuits through D1, D2, C3, C4 and manages to N-channel MOS FET
Q1 and Q2 powers.14 feet of comparison amplifier IC3-4 phase judgment, forward current, comparison amplifier IC3-4 export high potential,
Triode V13, V16, V21 are connected with V17, make the pole b of triode V18 in high potential, guarantee that MOSFET pipe Q1 is in always and lead
Logical state, MOSFET pipe Q2 is controlled when forward current；14 feet of reverse current, comparison amplifier IC3-4 export low potential, three poles
Pipe V13, V14 cut-off, triode V15, V23 are connected with V19, make the pole b of triode V20 in high potential, guarantee MOSFET pipe Q2
Always in the conductive state, MOSFET pipe Q1 is controlled when reverse current.12, the 13 foot current potentials of comparison amplifier IC4-4 compare inspection
It surveys, when temperature increases, thermistor Rt resistance value is reduced, and comparison amplifier IC4-4 is flipped 14 feet output high potential, positive electricity
When stream, the G electrode potential for dragging down MOSFET pipe Q2 is connected with V20 by triode V24, and MOSFET pipe Q2 cut-off disconnects current supply circuit；Instead
When to electric current, the G electrode potential for dragging down MOSFET pipe Q1, MOSFET pipe Q1 cut-off are connected with V18 by triode V22, and disconnection is powered back
Road.
The invention has the advantages that protecting electric equipment products during the work time from overcurrent, short circuit and plug overtemperature
The damage of degree, electric equipment products scrap and explode caused by avoiding because of overcurrent, short circuit with plug overtemperature degree, not only realize data line
After into protection by disconnect be again coupled to restore normal function, while ensure electric equipment products using safe.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Attached drawing is circuit diagram of the invention
Attached drawing: 1,2,3. terminal, R1~R57. resistance, RP1~RP9. adjustable resistance, Rt. thermistor, C1~C6. electricity
Hold, D1~D13. diode, ZD1~ZD3. zener diode, V1~V24. triode, Q1, Q2.MOSFET pipe, base when IC1.
Circuit, IC2. binary counter, IC3-1~IC3-4, IC4-1~IC4-4. comparison amplifier.
Specific embodiment
Terminal 1, the pole c of triode V18, the pole S of MOSFET pipe Q1,1 foot of adjustable resistance RP1 fixing end and electricity in the figure
The one end R32 is hindered to be connected, the pole D of MOSFET pipe Q1, zener diode ZD1 cathode, the one end resistance R1, time base circuit IC1 8 feet,
4 feet, diode D1 anode, the one end capacitor C4, the diode D3 anode, the one end resistance R42, resistance R43 mono- of time base circuit IC1
End, the one end resistance R44, diode D10 cathode, the one end resistance R45, the one end resistance R46, the one end resistance R47, zener diode
ZD3 anode is extremely connected with the D of MOSFET pipe Q2, and the pole G of MOSFET pipe Q1, the pole e of triode V18 are connected with the one end resistance R38,
The pole b of triode V18, the one end resistance R37, triode V17 the pole c be connected with the one end resistance R41, the pole G of MOSFET pipe Q2, three
The pole e of pole pipe V20 is connected with the one end resistance R39, the pole b, the one end resistance R40, the pole c of triode V19 and the resistance of triode V20
The one end R48 is connected, the pole e of triode V19, the resistance R40 other end, the resistance R39 other end, zener diode ZD3 cathode, resistance
The R38 other end, the resistance R37 other end, triode V17 the pole e be connected with the one end resistance R4, the resistance R4 other end, capacitor C4 are another
One end is connected with diode D2 cathode, and diode D2 anode, diode D1 cathode are connected with the one end capacitor C3, the capacitor C3 other end
It is connected with 3 feet of time base circuit IC1,7 feet, the resistance R1 other end of time base circuit IC1 is connected with the one end resistance R2, and resistance R2 is another
One end, 2 feet of time base circuit IC1, time base circuit IC1 6 feet be connected with the one end capacitor C1, the capacitor C1 other end, two pole of pressure stabilizing
Pipe ZD1 anode, 1 foot of time base circuit IC1, the one end resistance R3 are connected with the one end capacitor C2, the capacitor C2 other end and time base circuit
5 feet of IC1 are connected, and diode D3 cathode is connected with the one end resistance R5, the resistance R5 other end, zener diode ZD2 cathode, three poles
Amplification, 16 feet of binary counter IC2, the one end capacitor C6, the one end resistance R11, is compared at the pole e of triode V2 in the pole e of pipe V1
4 feet of device IC3-4, the pole e of triode V14, the pole e of triode V15, the pole e of triode V16, comparison amplifier IC4-1 4
Foot, the one end resistance R30 are connected with 1 foot of adjustable resistance RP3 fixing end, adjustable resistance RP1 is adjustable 2 foot of end, diode D4 cathode with
12 feet of comparison amplifier IC3-4 are connected, and 13 feet of comparison amplifier IC3-4 are connected with adjustable 2 foot of end of adjustable resistance RP2, than
14 feet, diode D4 anode compared with amplifier IC3-4 are connected with the one end resistance R24, the b of the resistance R24 other end and triode V13
Extremely it is connected, the pole c, one end resistance R25 of triode V13 is connected with the one end resistance R26, and the resistance R25 other end is with triode V16's
B is extremely connected, and the pole c of triode V16 is connected with the one end resistance R28, and the resistance R28 other end is extremely connected with the b of triode V21, and three
The pole c of pole pipe V21 is connected with resistance R34 one end, and the resistance R34 other end is extremely connected with the b of triode V17, the resistance R26 other end
Extremely it is connected with the b of triode V14, the pole c of triode V14, the pole b of triode V15 are connected with the one end resistance R27, triode V15
The pole c be connected with the one end resistance R29, the resistance R29 other end is extremely connected with the b of triode V23, the pole c of triode V23 and resistance
The one end R55 is connected, and the resistance R55 other end is extremely connected with the b of triode V19,1 foot of adjustable resistance RP2 fixing end, MOSFET pipe Q2
The pole S, the pole c of triode V20, terminal 2 be connected with the one end resistance R56, the pole c of triode V1, binary counter IC2 12
Foot is connected with the one end resistance R6, and the pole b of triode V1, the pole c of triode V2 are connected with the one end resistance R7, binary counter
11 feet of IC2 are connected with the one end resistance R8, the resistance R8 other end, the one end resistance R9, the one end capacitor C5 and triode V3 the pole c phase
Even, the pole b of triode V3 is connected with the one end resistance R10, the resistance R10 other end, the pole c of triode V4, triode V5 the pole c,
The pole c of triode V6 is connected with diode D5 anode, and the resistance R9 other end is connected with 10 feet of binary counter IC2, two into
9 feet of counter IC2 processed are connected with the capacitor C5 other end, and 3 feet of binary counter IC2 are extremely connected with the e of triode V4, and three
The pole b of pole pipe V4 is connected with the one end resistance R12, and the resistance R12 other end is extremely connected with the c of triode V7, the pole b of triode V7 with
The one end resistance R19 is connected, and 6 feet of binary counter IC2 are extremely connected with the e of triode V5, the pole b of triode V5 and resistance
The one end R13 is connected, and the resistance R13 other end is extremely connected with the c of triode V8, and the pole b of triode V8 is connected with the one end resistance R21,
7 feet of binary counter IC2 are extremely connected with the e of triode V6, and the pole b of triode V6 is connected with the one end resistance R14, resistance
The R14 other end is extremely connected with the c of triode V9, and the pole b of triode V9 is connected with the one end resistance R23, the pole b of triode V2, electricity
The resistance R11 other end, the one end resistance R15, the one end resistance R16 are connected with the one end resistance R17, the resistance R15 other end and triode V10
C extremely be connected, the pole b of triode V10 is connected with the one end resistance R18, and the resistance R16 other end is extremely connected with the c of triode V11,
The pole b of triode V11 is connected with the one end resistance R20, and the resistance R17 other end is extremely connected with the c of triode V12, triode V12's
The pole b is connected with the one end resistance R22, the resistance R18 other end, diode D6 cathode, the resistance R19 other end and diode D11 cathode
It is connected, the resistance R20 other end, diode D7 cathode, the resistance R21 other end are connected with diode D12 cathode, and resistance R22 is another
End, diode D8 cathode, the resistance R23 other end are connected with diode D13 cathode, diode D6 anode and comparison amplifier IC4-
11 foot is connected, 2 feet of comparison amplifier IC4-1, the resistance R32 other end, comparison amplifier IC4-2 6 feet, comparison amplifier
9 feet of IC4-3 are connected with the one end resistance R33, and 3 feet of comparison amplifier IC4-1 are connected with adjustable 2 foot of end of adjustable resistance RP4, and two
Pole pipe D7 anode is connected with 7 feet of comparison amplifier IC4-2,5 feet of comparison amplifier IC4-2 and the adjustable end 2 adjustable resistance RP5
Foot is connected, and diode D8 anode is connected with 8 feet of comparison amplifier IC4-3,10 feet and adjustable resistance of comparison amplifier IC4-3
RP6 is adjustable, and 2 foot of end is connected, and diode D11 anode is connected with 1 foot of comparison amplifier IC3-1, and the 2 of comparison amplifier IC3-1
Foot, the resistance R56 other end, 6 feet of comparison amplifier IC3-2, comparison amplifier IC3-3 9 feet be connected with the one end resistance R57,
3 feet of comparison amplifier IC3-1 are connected with adjustable 2 foot of end of adjustable resistance RP7, diode D12 anode and comparison amplifier IC3-2
7 feet be connected, 5 feet of comparison amplifier IC3-2 are connected with adjustable 2 foot of end of adjustable resistance RP8, and diode D13 anode is compared with
8 feet of amplifier IC3-3 are connected, and 10 feet of comparison amplifier IC3-3 are connected with adjustable 2 foot of end of adjustable resistance RP9, diode D5
Cathode, diode D9 cathode, the one end resistance R35 are connected with the one end resistance R36, the pole b of the resistance R35 other end and triode V22
It is connected, the pole c of triode V22 is connected with the resistance R41 other end, and the resistance R36 other end is extremely connected with the b of triode V24, three poles
The pole c of pipe V24 is connected with the resistance R48 other end, and diode D9 anode is connected with 14 feet of comparison amplifier IC4-4, compares and puts
12 feet, the resistance R30 other end of big device IC4-4 is connected with the one end resistance R31,13 feet, the adjustable resistance of comparison amplifier IC4-4
RP3 is adjustable 2 foot of end, 3 foot of adjustable resistance RP3 fixing end are connected with the one end thermistor Rt, the resistance R42 other end and adjustable resistance
1 foot of RP4 fixing end is connected, and 3 foot of adjustable resistance RP4 fixing end is connected with the one end resistance R53, the resistance R43 other end and adjustable electric
Hinder 1 foot of RP5 fixing end be connected, 3 foot of adjustable resistance RP5 fixing end is connected with the one end resistance R49, the resistance R44 other end with it is adjustable
1 foot of resistance RP6 fixing end is connected, and 3 foot of adjustable resistance RP6 fixing end is connected with the one end resistance R50, the resistance R45 other end and can
Adjust 1 foot of resistance RP9 fixing end be connected, 3 foot of adjustable resistance RP9 fixing end is connected with the one end resistance R51, the resistance R46 other end and
1 foot of adjustable resistance RP8 fixing end is connected, and 3 foot of adjustable resistance RP8 fixing end is connected with the one end resistance R52, the resistance R47 other end
It is connected with 1 foot of adjustable resistance RP7 fixing end, 3 foot of adjustable resistance RP7 fixing end is connected with the one end resistance R54, and resistance R3 is another
End, zener diode ZD2 anode, 3 foot of adjustable resistance RP2 fixing end, 3 foot of adjustable resistance RP1 fixing end, comparison amplifier IC3-
4 11 feet, the pole e of triode V13, the resistance R27 other end, the pole e of triode V21, the resistance R49 other end, resistance R50 are another
End, diode D10 anode, the resistance R51 other end, the resistance R52 other end, the pole e of triode V23, the resistance R6 other end, resistance
The R7 other end, the pole e of triode V3,8 feet of binary counter IC2, the capacitor C6 other end, the pole e of triode V7, triode
The pole e of V8, the pole e of triode V10, the pole e of triode V11, the pole e of triode V9, the pole e of triode V12, comparison amplifier
11 feet, the resistance R31 other end, the thermistor Rt other end, the resistance R33 other end, the pole e of triode V22, resistance of IC4-4
The R53 other end, terminal 3, the resistance R54 other end, triode V24 the pole e be connected with the resistance R57 other end.
Claims (1)
1. a kind of super temperature data line of electronic overcurrent protects device, in protection device, electric current flows to terminal 2 from terminal 1 and claims just
To electric current, electric current flows to terminal 1 from terminal 2 and claims reverse current, and terminal 3 is grounded, is compared by the 2 of comparison amplifier IC3-1,3 feet
One section of positive primary overload current is detected, 2,3 feet of comparison amplifier IC4-1 compare one section of detection reversed primary overload current,
5,6 feet of comparison amplifier IC3-2 compare two sections of advanced overload currents of forward direction of detection, and 5,6 feet of comparison amplifier IC4-2 compare
Two sections of reversed advanced overload currents are detected, 9,10 feet of comparison amplifier IC3-3 compare three sections of detection positive short circuit currents, compare
9,10 feet of amplifier IC4-3 compare three sections of reversed short circuit currents of detection, it is characterized in that: the pole c of terminal 1, triode V18,
The pole S of MOSFET pipe Q1,1 foot of adjustable resistance RP1 fixing end are connected with the one end resistance R32, the pole D of MOSFET pipe Q1, pressure stabilizing two
Pole pipe ZD1 cathode, the one end resistance R1,8 feet of time base circuit IC1,4 feet of time base circuit IC1, diode D1 anode, capacitor C4
One end, diode D3 anode, the one end resistance R42, the one end resistance R43, the one end resistance R44, diode D10 cathode, resistance R45 mono-
End, the one end resistance R46, the one end resistance R47, zener diode ZD3 anode are extremely connected with the D of MOSFET pipe Q2, MOSFET pipe Q1
The pole G, triode V18 the pole e be connected with the one end resistance R38, the pole b of triode V18, the one end resistance R37, triode V17 c
Pole is connected with the one end resistance R41, and the pole G of MOSFET pipe Q2, the pole e of triode V20 are connected with the one end resistance R39, triode V20
The pole b, the one end resistance R40, triode V19 the pole c be connected with the one end resistance R48, the pole e of triode V19, resistance R40 are another
It holds, the pole e of the resistance R39 other end, zener diode ZD3 cathode, the resistance R38 other end, the resistance R37 other end, triode V17
It is connected with the one end resistance R4, the resistance R4 other end, the capacitor C4 other end are connected with diode D2 cathode, diode D2 anode, two
Pole pipe D1 cathode is connected with the one end capacitor C3, and the capacitor C3 other end is connected with 3 feet of time base circuit IC1, and the 7 of time base circuit IC1
Foot, the resistance R1 other end are connected with the one end resistance R2, the resistance R2 other end, 2 feet of time base circuit IC1, time base circuit IC1 6
Foot is connected with the one end capacitor C1, the capacitor C1 other end, zener diode ZD1 anode, 1 foot of time base circuit IC1, the one end resistance R3
It is connected with the one end capacitor C2, the capacitor C2 other end is connected with 5 feet of time base circuit IC1, diode D3 cathode and the one end resistance R5
It is connected, the resistance R5 other end, zener diode ZD2 cathode, the pole e of triode V1, the pole e of triode V2, binary counter
16 feet, the one end capacitor C6, the one end resistance R11,4 feet of comparison amplifier IC3-4, the pole e of triode V14, triode of IC2
The pole e of V15, the pole e of triode V16,4 feet of comparison amplifier IC4-1, the one end resistance R30 and adjustable resistance RP3 fixing end 1
Foot is connected, and adjustable resistance RP1 is adjustable 2 foot of end, diode D4 cathode are connected with 12 feet of comparison amplifier IC3-4, compares amplification
13 feet of device IC3-4 are connected with adjustable 2 foot of end of adjustable resistance RP2,14 feet of comparison amplifier IC3-4, diode D4 anode with
The one end resistance R24 is connected, and the resistance R24 other end is extremely connected with the b of triode V13, the pole c, the one end resistance R25 of triode V13
It is connected with the one end resistance R26, the resistance R25 other end is extremely connected with the b of triode V16, the pole c of triode V16 and resistance R28 mono-
End is connected, and the resistance R28 other end is extremely connected with the b of triode V21, and the pole c of triode V21 is connected with resistance R34 one end, resistance
The R34 other end is extremely connected with the b of triode V17, and the resistance R26 other end is extremely connected with the b of triode V14, the c of triode V14
Pole, triode V15 the pole b be connected with the one end resistance R27, the pole c of triode V15 is connected with the one end resistance R29, and resistance R29 is another
One end is extremely connected with the b of triode V23, and the pole c of triode V23 is connected with the one end resistance R55, the resistance R55 other end and three poles
The b of pipe V19 is extremely connected, 1 foot of adjustable resistance RP2 fixing end, the pole S of MOSFET pipe Q2, the pole c of triode V20, terminal 2 and electricity
It hinders the one end R56 to be connected, the pole c of triode V1,12 feet of binary counter IC2 are connected with the one end resistance R6, the b of triode V1
Pole, triode V2 the pole c be connected with the one end resistance R7,11 feet of binary counter IC2 are connected with the one end resistance R8, resistance R8
The other end, the one end resistance R9, the one end capacitor C5 are extremely connected with the c of triode V3, the pole b and the one end the resistance R10 phase of triode V3
Even, the resistance R10 other end, the pole c of triode V4, the pole c of triode V5, triode V6 the pole c be connected with diode D5 anode,
The resistance R9 other end is connected with 10 feet of binary counter IC2,9 feet and the capacitor C5 other end phase of binary counter IC2
Even, 3 feet of binary counter IC2 are extremely connected with the e of triode V4, and the pole b of triode V4 is connected with the one end resistance R12, electricity
The resistance R12 other end is extremely connected with the c of triode V7, and the pole b of triode V7 is connected with the one end resistance R19, binary counter IC2
6 feet be extremely connected with the e of triode V5, the pole b of triode V5 is connected with the one end resistance R13, the resistance R13 other end and triode
The c of V8 is extremely connected, and the pole b of triode V8 is connected with the one end resistance R21,7 feet of binary counter IC2 and the e of triode V6
Extremely it is connected, the pole b of triode V6 is connected with the one end resistance R14, and the resistance R14 other end is extremely connected with the c of triode V9, triode
The pole b of V9 is connected with the one end resistance R23, the pole b, the resistance R11 other end, the one end resistance R15, the one end resistance R16 of triode V2
It is connected with the one end resistance R17, the resistance R15 other end is extremely connected with the c of triode V10, the pole b of triode V10 and resistance R18 mono-
End is connected, and the resistance R16 other end is extremely connected with the c of triode V11, and the pole b of triode V11 is connected with the one end resistance R20, resistance
The R17 other end is extremely connected with the c of triode V12, and the pole b of triode V12 is connected with the one end resistance R22, the resistance R18 other end,
Diode D6 cathode, the resistance R19 other end are connected with diode D11 cathode, the resistance R20 other end, diode D7 cathode, resistance
The R21 other end is connected with diode D12 cathode, the resistance R22 other end, diode D8 cathode, the resistance R23 other end and diode
D13 cathode is connected, and diode D6 anode is connected with 1 foot of comparison amplifier IC4-1,2 feet, the resistance of comparison amplifier IC4-1
The R32 other end, 6 feet of comparison amplifier IC4-2, comparison amplifier IC4-3 9 feet be connected with the one end resistance R33, compare amplification
3 feet of device IC4-1 are connected with adjustable 2 foot of end of adjustable resistance RP4,7 foot phases of diode D7 anode and comparison amplifier IC4-2
Even, 5 feet of comparison amplifier IC4-2 are connected with adjustable 2 foot of end of adjustable resistance RP5, diode D8 anode and comparison amplifier
8 feet of IC4-3 are connected, and 10 feet of comparison amplifier IC4-3 are connected with adjustable 2 foot of end of adjustable resistance RP6, diode D11 anode
It is connected with 1 foot of comparison amplifier IC3-1,2 feet, the resistance R56 other end, comparison amplifier IC3-2 of comparison amplifier IC3-1
6 feet, comparison amplifier IC3-3 9 feet be connected with the one end resistance R57,3 feet of comparison amplifier IC3-1 and adjustable resistance RP7
Adjustable 2 foot of end be connected, diode D12 anode is connected with 7 feet of comparison amplifier IC3-2,5 feet of comparison amplifier IC3-2 and
Adjustable resistance RP8 is adjustable, and 2 foot of end is connected, and diode D13 anode is connected with 8 feet of comparison amplifier IC3-3, comparison amplifier
10 feet of IC3-3 are connected with adjustable 2 foot of end of adjustable resistance RP9, diode D5 cathode, diode D9 cathode, the one end resistance R35 with
The one end resistance R36 is connected, and the resistance R35 other end is extremely connected with the b of triode V22, and the pole c of triode V22 and resistance R41 are another
End is connected, and the resistance R36 other end is extremely connected with the b of triode V24, and the pole c of triode V24 is connected with the resistance R48 other end, and two
Pole pipe D9 anode is connected with 14 feet of comparison amplifier IC4-4,12 feet, the resistance R30 other end and the electricity of comparison amplifier IC4-4
It hinders the one end R31 to be connected, 13 feet of comparison amplifier IC4-4, adjustable resistance RP3 is adjustable 2 foot of end, 3 foot of adjustable resistance RP3 fixing end
It is connected with the one end thermistor Rt, the resistance R42 other end is connected with 1 foot of adjustable resistance RP4 fixing end, and adjustable resistance RP4 is fixed
3 feet are held to be connected with the one end resistance R53, the resistance R43 other end is connected with 1 foot of adjustable resistance RP5 fixing end, and adjustable resistance RP5 is solid
3 foot of fixed end is connected with the one end resistance R49, and the resistance R44 other end is connected with 1 foot of adjustable resistance RP6 fixing end, adjustable resistance RP6
3 foot of fixing end is connected with the one end resistance R50, and the resistance R45 other end is connected with 1 foot of adjustable resistance RP9 fixing end, adjustable resistance
3 foot of RP9 fixing end is connected with the one end resistance R51, and the resistance R46 other end is connected with 1 foot of adjustable resistance RP8 fixing end, adjustable electric
Resistance 3 foot of RP8 fixing end is connected with the one end resistance R52, and the resistance R47 other end is connected with 1 foot of adjustable resistance RP7 fixing end, adjustable
3 foot of resistance RP7 fixing end is connected with the one end resistance R54, the resistance R3 other end, zener diode ZD2 anode, adjustable resistance RP2
3 foot of fixing end, 3 foot of adjustable resistance RP1 fixing end, 11 feet of comparison amplifier IC3-4, the pole e of triode V13, resistance R27 are another
One end, the pole e of triode V21, the resistance R49 other end, the resistance R50 other end, diode D10 anode, the resistance R51 other end,
The resistance R52 other end, the pole e of triode V23, the resistance R6 other end, the resistance R7 other end, the pole e of triode V3, binary system meter
8 feet, the capacitor C6 other end, the pole e of triode V7, the pole e of triode V8, the pole e of triode V10, triode of number device IC2
The pole e of V11, the pole e of triode V9, the pole e of triode V12,11 feet of comparison amplifier IC4-4, the resistance R31 other end, heat
The quick resistance Rt other end, the resistance R33 other end, the pole e of triode V22, the resistance R53 other end, terminal 3, resistance R54 are another
It holds, the pole e of triode V24 is connected with the resistance R57 other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710872877.3A CN109524940B (en) | 2017-09-18 | 2017-09-18 | Electronic overcurrent over-temperature data line protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710872877.3A CN109524940B (en) | 2017-09-18 | 2017-09-18 | Electronic overcurrent over-temperature data line protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109524940A true CN109524940A (en) | 2019-03-26 |
| CN109524940B CN109524940B (en) | 2022-12-13 |
Family
ID=65768798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710872877.3A Active CN109524940B (en) | 2017-09-18 | 2017-09-18 | Electronic overcurrent over-temperature data line protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109524940B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI748731B (en) * | 2020-11-05 | 2021-12-01 | 新唐科技股份有限公司 | Chip over current and over temperature protection method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2104414U (en) * | 1991-02-06 | 1992-05-13 | 王接枝 | Electronical temp. control unit for refrigerator |
| US5298851A (en) * | 1992-05-12 | 1994-03-29 | Transpo Electronics, Inc. | Multiple application voltage regulator system and method |
| CN1101194A (en) * | 1993-03-02 | 1995-04-05 | 梁建昌 | Multifunction electronic alarming device |
| JP2009100541A (en) * | 2007-10-16 | 2009-05-07 | Nikon Corp | Excess current protection circuit |
| CN201886586U (en) * | 2010-06-04 | 2011-06-29 | 魏锡秦 | Electrical fire monitor protector |
| CN102237671A (en) * | 2011-06-06 | 2011-11-09 | 刘圣平 | Comprehensive out-of-limit and out-of-control prevention potential limiting counting timing control circuit |
-
2017
- 2017-09-18 CN CN201710872877.3A patent/CN109524940B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2104414U (en) * | 1991-02-06 | 1992-05-13 | 王接枝 | Electronical temp. control unit for refrigerator |
| US5298851A (en) * | 1992-05-12 | 1994-03-29 | Transpo Electronics, Inc. | Multiple application voltage regulator system and method |
| CN1101194A (en) * | 1993-03-02 | 1995-04-05 | 梁建昌 | Multifunction electronic alarming device |
| JP2009100541A (en) * | 2007-10-16 | 2009-05-07 | Nikon Corp | Excess current protection circuit |
| CN201886586U (en) * | 2010-06-04 | 2011-06-29 | 魏锡秦 | Electrical fire monitor protector |
| CN102237671A (en) * | 2011-06-06 | 2011-11-09 | 刘圣平 | Comprehensive out-of-limit and out-of-control prevention potential limiting counting timing control circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI748731B (en) * | 2020-11-05 | 2021-12-01 | 新唐科技股份有限公司 | Chip over current and over temperature protection method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109524940B (en) | 2022-12-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| HUP0001255A2 (en) | Protective device against excessive currents, in particular for resettable protection of a controlled switch | |
| CN204068212U (en) | Damage restraint device | |
| TW556382B (en) | Power protection | |
| CN210041316U (en) | Over-temperature protection circuit | |
| WO2018126790A1 (en) | Circuit protection circuit and method, and power supply cable | |
| CN109524940A (en) | The super temperature data line of electronic overcurrent protects device | |
| CN207926209U (en) | Lithium battery pack charge-discharge protection circuit | |
| CN104753034B (en) | Electronic device and its charge protector | |
| CN103034314A (en) | Method of server power supply protecting system | |
| FI20096301A0 (en) | Electronic protection circuit and protective device | |
| CN203056555U (en) | Over-current protector | |
| CN102882203A (en) | Power transmission system, device and protection circuit with power supply protection function | |
| CN206099334U (en) | Prevent reverse -connection protective circuit with cross brown -out detection | |
| CN107846001B (en) | The super temperature protective device of electronics three-stage overcurrent | |
| CN204967781U (en) | Disconnected solid state relay evaluates oneself in area | |
| CN203707731U (en) | An automatic recovery circuit for intrinsic safe power supply output protection | |
| CN203690889U (en) | Over-temperature and over-current protection module capable of being reset manually in electrified manner | |
| CN206023728U (en) | IPM overcurrent protections and delayed recovery circuit | |
| CN207840358U (en) | Electric welding machine thermel protection device | |
| CN207625304U (en) | A kind of integral type charging gun with overheat protector | |
| CN207868787U (en) | A kind of earth leakage protective device | |
| CN204967221U (en) | Protective circuit based on PTC thermistor | |
| CN205811516U (en) | Power-off protecting circuit | |
| CN214479648U (en) | Charging protection circuit and electronic device | |
| CN201846065U (en) | Transducer input overflow overvoltage protective device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: SHANGHAI SHENWO ELECTRONICS CO.,LTD. Document name: Notification of Passing Preliminary Examination of the Application for Invention |
|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240311 Address after: Block A, Building 1, No. 180 Chengye Road, Sheshan Town, Songjiang District, Shanghai, February 2016 Patentee after: SHANGHAI KETER NEW MATERIALS CO.,LTD. Country or region after: Zhong Guo Patentee after: SHANGHAI SHENWO ELECTRONICS CO.,LTD. Address before: No. 736, Zhuanxing East Road, Minhang District, Shanghai, 201108 (near Lianhua South Road) Patentee before: SHANGHAI SHENWO ELECTRONICS CO.,LTD. Country or region before: Zhong Guo |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhai Xiaojun Document name: Notice of Qualified Procedures |