CM0504 User Guide
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5.3.1.3.
H-Bridge Connection
The•high-side/low-side•outputs•can•be•configured•to•be•an•H-Bridge•(controlled•by•activating•the•one•you•
want•to•be•high•side).•An•H-Bridge•allows•loads•to•be•controlled•by•both•high•side•and•low•side•switches•
at•the•same•time.
H-Bridge•connection•allows•loads•to•have•current•reversed•through•them•which•allows•several•load•types•
to•reverse•direction•(motors,•solenoids,•etc).
There•are•2•H-Bridge•options•that•the•CM0504•can•accommodate.••These•are•configurable•in•the•Software•
Tool.•Configurations•are:•
•
•
2•separate•H-Bridges•that•function•independent•of•one•another•and•can•handle•up•to•25•amps•each.••
Please•reference•the•Software•Tool•for•how•you•must•pin•the•CM0504•
•
•
1••H-Bridge•that•gangs•output•pins•together.••In•this•configuration•that•CM0504•can•sustain•up•to•50•
amps•across•this•H-Bridge.••Please•reference•the•Software•Tool•for•how•you•must•pin•the•CM0504•
•
Size•your•fuses•and•wires•accordingly•when•altering•the•output•configuration.••
•
Improper•fusing•and•wiring•can•result•in•a•fire.•
•
Note:
Fusing•of•the•Bus•Bar(s)•is•not•shown•in•the•examples•below.•
The•following•figures•show•a•typical•setup•for•an•H-Bridge.•These•show•how•the•H-Bridge•is•used•to•
reverse•current•flow•direction.
Busbar (VBAT)
Busbar (VBAT)
Output X (HS)
active
Output X (LS)
inactive
Output Y (HS)
inactive
Output Y (LS)
active
LOAD
MODULE
Current flow
direction
Figure 5.4. H-bridge forward direction