CN105007656B

CN105007656B - The latch cicuit of multifunctional electric torch

Info

Publication number: CN105007656B
Application number: CN201510414016.1A
Authority: CN
Inventors: 朱红卫; 杜浩华
Original assignee: Haining Haiwei Electronic Science & Technology Co Ltd
Current assignee: Haining Haiwei Electronic Science & Technology Co Ltd
Priority date: 2015-07-14
Filing date: 2015-07-14
Publication date: 2018-04-06
Anticipated expiration: 2035-07-14
Also published as: CN105007656A

Abstract

The present invention proposes a kind of latch cicuit of the multifunctional electric torch with less size and relatively low cost for function switch, and it includes comparator COMP, metal-oxide-semiconductor field effect transistor M1, M2, M3, M4, M5, M6, M7, M8, M9, M10 and phase inverter A, B；M5 S ends, M7 G ends, comparator COMP DN ends are connected with each other, M5 B ends, M6 B ends, comparator COMP GND ends, M9 B ends, M10 B ends are grounded, M6 D ends, phase inverter A output end, phase inverter B input is connected with each other, phase inverter A input is connected with state signal input terminal STO, phase inverter B output end and M10 D ends connect, M10 G ends, M6 G ends, control terminal K is connected with each other, M9 S ends, M8 G ends, comparator COMP DP ends are connected with each other, M7 D ends, B ends, S ends and M8 D ends, B ends, S ends are grounded；Comparator COMP vdd terminal meets power vd D, and comparator COMP Q ends are output end CAP1.

Description

The latch cicuit of multifunctional electric torch

Technical field

The present invention relates to latch cicuit technical field, is especially a kind of latch cicuit of multifunctional electric torch.

Background technology

It is mainly electric capacity that multifunctional electric torch, which has function, the structures for realizing these functions such as all light, SOS flickers, alarm, The switching circuit for coordinating external circuit to be formed, the potential that electric capacity provides is relied on when multifunctional electric torch switches between each function, Switching push button to be pressed, is now shut-off, chip power-down, electric capacity provides the potential of the functional mode before remembeing shut-off for chip, It can probably maintain several seconds, when pressing switching push button again, now switch on power, chip switches to other functional modes, this Sample just completes the switching of two functions, has three or three function above just sequentially switch, from above-mentioned, prior art must Must there must be electric capacity, therefore, switching circuit volume is larger, and cost is also higher.

The content of the invention

The technical problems to be solved by the invention are the defects of overcoming prior art, there is provided a kind of for function switch The latch cicuit of multifunctional electric torch with less size and relatively low cost.

In order to solve the above technical problems, the present invention proposes a kind of latch cicuit of multifunctional electric torch, it includes comparator COMP, metal-oxide-semiconductor field effect transistor M1, M2, M3, M4, M5, M6, M7, M8, M9, M10 and phase inverter A, B, wherein M2, M3 are PMOS FET, other metal-oxide-semiconductor field effect transistors are NMOS FETs；M1 G ends, M1 D ends, M2 G ends, M3 G ends are mutual Connection, M1 B ends, S ends be grounded, and M3 D ends, B ends, S ends connect power vd D, M2 B ends, S ends meet power vd D；M2's D ends, M4 G ends, M5 G ends, M9 G ends are connected with each other；M4 D ends, B ends, S ends is grounded；M5 S ends, M7 G ends, ratio DN ends compared with device COMP are connected with each other, and M5 D ends and M6 S ends connect, M5 B ends, M6 B ends, comparator COMP GND End, M9 B ends, M10 B ends are grounded, and M6 D ends, phase inverter A output end, phase inverter B input are connected with each other, instead Phase device A input is connected with state signal input terminal STO, and phase inverter B output end and M10 D ends connect, M10 G ends, M6 G ends, control terminal K are connected with each other, and M10 S ends and M9 D ends connect, M9 S ends, M8 G ends, comparator COMP DP End is connected with each other, and M7 D ends, B ends, S ends and M8 D ends, B ends, S ends are grounded；Comparator COMP vdd terminal connects power supply VDD, comparator COMP Q ends are output end CAP1.

After said structure, compared with prior art, the present invention has advantages below：State signal input terminal STO is One signal of original state, for example 1, control terminal K are a fixed signal so that whole circuit can work, such as a stabilization Potential, output end CAP1 exports a signal to coding-decoding circuit, and so, with STO change, CAP1 also changes, So as to realize function switch, whole circuit is based primarily upon metal-oxide-semiconductor field effect transistor realization, in practice, phase inverter A, B and comparator COMP is also built by metal-oxide-semiconductor field effect transistor, and therefore, whole circuit has less size and relatively low cost, relatively low cost Cost advantage when being mainly reflected in compared with high efficiency and producing in enormous quantities.

As an improvement, comparator COMP includes metal-oxide-semiconductor field effect transistor M11, M12, M13, M14, M15, M16, M17, M18, M19 And phase inverter C, wherein M11, M12, M13, M14, M15 is PMOS FETs, and M16, M17, M18, M19 are NMOS fields Effect pipe；M11 S ends, M11 B ends, M16 G ends, M14 B ends, M12 S ends, M12 B ends, M15 B ends, M13 S End, M13 B ends connect vdd terminal；M11 G ends, M11 D ends, M16 D ends, M12 G ends, M13 G ends are connected with each other, M12 D ends, M14 S ends, M15 S ends be connected with each other, M14 D ends, M17 D ends, M17 G ends, M18 G ends are connected with each other, M15 D ends, M18 D ends, M19 G ends are connected with each other, and M13 D ends, phase inverter C input, M19 D ends are connected with each other, M16 S ends, M16 B ends, M17 S ends, M17 B ends, M18 S ends, M18 B ends, M19 S ends, M19 B ends connect GND ends；M14 G termination DP ends, M15 G termination DN ends, phase inverter C output termination Q ends, described comparator COMP structures Simply, stable and reliable operation, so as to be more beneficial for the raising of stability and reliability of the present invention.

Brief description of the drawings

Fig. 1 is the circuit theory diagrams of the latch cicuit of multifunctional electric torch of the present invention.

Fig. 2 is the comparator COMP of the latch cicuit of multifunctional electric torch of the present invention circuit theory diagrams.

Embodiment

The present invention is further detailed explanation below：

The latch cicuit of multifunctional electric torch of the present invention, it include comparator COMP, metal-oxide-semiconductor field effect transistor M1, M2, M3, M4, M5, M6, M7, M8, M9, M10 and phase inverter A, B, wherein M2, M3 are PMOS FETs, and other metal-oxide-semiconductor field effect transistors are NMOS FETs；M1 G ends, M1 D ends, M2 G ends, M3 G ends are connected with each other, and M1 B ends, S ends are grounded, M3 D End, B ends, S ends connect power vd D, M2 B ends, S ends meet power vd D；M2 D ends, M4 G ends, M5 G ends, M9 G ends It is connected with each other；M4 D ends, B ends, S ends is grounded；M5 S ends, M7 G ends, comparator COMP DN ends are connected with each other, M5 D End is connected with M6 S ends, and M5 B ends, M6 B ends, comparator COMP GND ends, M9 B ends, M10 B ends are grounded, M6's D ends, phase inverter A output end, phase inverter B input are connected with each other, phase inverter A input and state signal input terminal STO connections, phase inverter B output end and M10 D ends are connected, and M10 G ends, M6 G ends, control terminal K are connected with each other, M10 S End is connected with M9 D ends, the DP ends interconnection at M9 S ends, M8 G ends, comparator COMP, M7 D ends, B ends, S ends and M8 D ends, B ends, S ends is grounded；Comparator COMP vdd terminal meets power vd D, and comparator COMP Q ends are output end CAP1.

Comparator COMP includes metal-oxide-semiconductor field effect transistor M11, M12, M13, M14, M15, M16, M17, M18, M19 and anti-phase Device C, wherein M11, M12, M13, M14, M15 are PMOS FETs, and M16, M17, M18, M19 are NMOS FETs； M11 S ends, M11 B ends, M16 G ends, M14 B ends, M12 S ends, M12 B ends, M15 B ends, M13 S ends, M13 B ends connect vdd terminal；M11 G ends, M11 D ends, M16 D ends, M12 G ends, M13 G ends are connected with each other, M12 D ends, M14 S ends, M15 S ends are connected with each other, and M14 D ends, M17 D ends, M17 G ends, M18 G ends are connected with each other, M15 D End, M18 D ends, M19 G ends are connected with each other, and M13 D ends, phase inverter C input, M19 D ends are connected with each other, M16 S End, M16 B ends, M17 S ends, M17 B ends, M18 S ends, M18 B ends, M19 S ends, M19 B ends connect GND ends； M14 G termination DP ends, M15 G termination DN ends, phase inverter C output termination Q ends.

In actual applications, the latch cicuit of multiple multifunctional electric torch of the present invention can be entered row set application, that is, wrapped Multiple latch cicuits are included, the control terminal K of each latch cicuit is connected with each other, and each latch cicuit provides CAP1 and gives encoding and decoding electricity respectively Road, multiple CAP1 various combination can realize abundant coding, each corresponding One function of coding, realize more function controls System, thus constitute the rendezvous scheme of a latch cicuit, due to the latch cicuit of multifunctional electric torch of the present invention have compared with Small size and relatively low cost, so the rendezvous scheme also has less size and relatively low cost, relatively low cost master Cost advantage when being embodied in compared with high efficiency and producing in enormous quantities.

Described above is only the better embodiment of the present invention, therefore all constructions according to described in present patent application scope, The equivalent change or modification that feature and principle are done, is included in the range of present patent application.

Claims

A kind of 1. latch cicuit of multifunctional electric torch, it is characterised in that it include comparator COMP, metal-oxide-semiconductor field effect transistor M1, M2, M3, M4, M5, M6, M7, M8, M9, M10 and phase inverter A, B, wherein M2, M3 are PMOS FETs, other MOS fields Effect pipe is NMOS FETs；M1 G ends, M1 D ends, M2 G ends, M3 G ends are connected with each other, and M1 B ends, S ends is equal Ground connection, M3 D ends, B ends, S ends connect power vd D, M2 B ends, S ends meet power vd D；M2 D ends, M4 G ends, M5 G End, M9 G ends are connected with each other；M4 D ends, B ends, S ends is grounded；M5 S ends, M7 G ends, comparator COMP DN ends are mutual Connection, M5 D ends and M6 S ends connect, M5 B ends, M6 B ends, comparator COMP GND ends, M9 B ends, M10 B ends It is grounded, M6 D ends, phase inverter A output end, phase inverter B input are connected with each other, phase inverter A input and state Signal input part STO connections, phase inverter B output end and M10 D ends connect, and M10 G ends, M6 G ends, control terminal K are mutual Connection, M10 S ends and M9 D ends are connected, and M9 S ends, M8 G ends, comparator COMP DP ends are connected with each other, M7 D ends, B D ends, B ends, the S ends at end, S ends and M8 are grounded；Comparator COMP vdd terminal meets power vd D, and comparator COMP Q ends are Output end CAP1.
2. the latch cicuit of multifunctional electric torch according to claim 1, it is characterised in that comparator COMP includes MOS FET M11, M12, M13, M14, M15, M16, M17, M18, M19 and phase inverter C, wherein M11, M12, M13, M14, M15 is PMOS FETs, and M16, M17, M18, M19 are NMOS FETs；M11 S ends, M11 B ends, M16 G End, M14 B ends, M12 S ends, M12 B ends, M15 B ends, M13 S ends, M13 B ends connect vdd terminal；M11 G ends, M11 D ends, M16 D ends, M12 G ends, M13 G ends are connected with each other, and M12 D ends, M14 S ends, M15 S ends mutually interconnect Connect, M14 D ends, M17 D ends, M17 G ends, M18 G ends are connected with each other, and M15 D ends, M18 D ends, M19 G ends are mutual Connection, M13 D ends, phase inverter C input, M19 D ends are connected with each other, M16 S ends, M16 B ends, M17 S ends, M17 B ends, M18 S ends, M18 B ends, M19 S ends, M19 B ends connect GND ends；M14 G termination DP ends, M15 G terminations DN ends, phase inverter C output termination Q ends.