DC Motor Control Using Hbridge

8/10/2019 DC Motor Control Using Hbridge

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H-BRIDGE

Sachin T John

EE/ISP14EE64D01

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H-BRIDGE

&n H bridgeis an e!ectronic circuitthat ena(!es a )o!tage to (e a##!ied

across a !oad in either direction.

I*age Courtes+,htt#,//en.ii#edia.org/ii/H(ridge

"PE&TI""PE&TI"

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CONSTRUCTION

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CONSTRUCTION

I*age Courtes+,So!ar(otics

A B C D Function

1 0 0 1 3orard

0 1 1 0 e)erse1 1 0 0 Brae

0 0 1 1 Brae

1 0 1 0 3use Test

0 1 0 1 3use Test


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DC "T" C"T"5

& *otor contro! circuit, Pro)ides #oer to the *otor coi!s in

either #o!arit+

&!!os the eterna! !ogic to contro!direction/s#eed

There are to (asic t+#es o$ *otor

contro!!ers E!ectro*echanica! re!a+ (ased

contro!!ers

Se*iconductor (ased contro!!ers 7H-(rid es86


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e!a+ otor Contro! Circuit

&d)antages 9ses si*#!e: ro(ust e!ectro*echanica! de)ices

Can hand!e high )o!tages and !arge currents

Disad)antages e;uires #eriodic *aintenance 7c!eaning

contacts8

e!ati)e!+ s!o due to inertia in *echanica! #arts

Contact *ae/(rea/(ounce s#ars creating EIor #ossi(!e e#!osion ha


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H-Bridge )/s e!a+s

& >dou(!e #o!e dou(!e thro> re!a+ cangenera!!+ achie)e the sa*e e!ectrica!$unctiona!it+ as an H-(ridge.

H-(ridge ou!d (e #re$era(!e here,- a s*a!!er #h+sica! si


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H-(ridge otor Contro!Circuit

& DC *otor such as our e!e)ator s+ste* dri)e*otor re;uires one H-(ridge #er *otorThe direction is deter*ined (+ the in#uts 71 or %8

The *otor can (e turned on and o@ (+ a u-contro!!er. & (i#o!ar ste##er *otor such as the ercur+

otor re;uires to H-Bridge circuits #er *otorThe direction is deter*ined (+ the ordering o$ the

!ogic signa!s to the in#uts 71: %: 2: or 48The s#eed is contro!!ed (+ the s#eed o$ se;uencing

A


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Contro!!ing a PDC otor "#tions

DC o#eration otationa! s#eed o$ the DC *otor is ed at a

gi)en )o!tage and !oad

P "#eration &)erage )o!tage 7and rotationa! s#eed8 can (e

contro!!ed (+ o#ening/c!osing the sitches;uic!+

Braing Shorting the ter*ina!s or *o*entari!+

re)ersing the dri)e

"thers 10


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OPERATION

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Contro!!ing a Per*anent agnet DC 7PDC8otor

Bi-directiona! P DC *otors are contro!!ed ithan >H-Bridge> circuit consisting o$ the *otor and$our #oer sitches

&ni*ation Courtes+, Inneon1%


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T i " PDC t


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Current

"ne sitch is c!osed in each !eg o$ the>H>

"ne sitch is o#en in each !eg o$ the >H

Turning "n a PDC otorin the "ther Direction

14&ni*ation Courtes+, Inneon

C t !!i P t


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Current

9nidirectiona! *otors are contro!!ed (+ aha!$-H (ridge circuit

Contro!!ing a Per*anentagnet DC 7PDC8 otor

1&ni*ation Courtes+, Inneon


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Micro-ControerInter!"cing

H-(ridge a!!os a *icrocontro!!er $u!!contro! o)er a standard e!ectric DC*otor.

That is: ith an H-(ridge: a*icrocontro!!er: !ogic chi#: or re*otecontro! can e!ectronica!!+ co**and a

*otor to go $orard: re)erse: (rae:and coast.

I*age Courtes+,

htt#,//.ecs.u*ass.edu

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1A

I*age Courtes+,&$rotech*ods


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%0

I*age Courtes+,&$rotech*ods


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REFERENCES

.ti.co*/!it/ds/s+*!in

$reesca!e.co*/!es/ana!og/doc

.st.co*/e(/en/cata!og/sense#oer/314%/C5?1/.../P36214=

ii#edia.org

htt#,//.ecs.u*ass.edu htt#,//.a$rotech*ods.co*

%1


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T("n)*ou+

I*ages Courtes+ htt# // ecs u*ass edu%%

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DC Motor Control Using Hbridge