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ECN3021 fiches techniques PDF

Hitachi - High Voltage Monolithic IC

Numéro de référence ECN3021
Description High Voltage Monolithic IC
Fabricant Hitachi 
Logo Hitachi 





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ECN3021 fiche technique
HIGH-VOLTAGE MONOLITHIC IC
ECN3021
ECN3021 is a single chip three-phase bridge inverter IC which has 6 IGBTs in the circuit.
Especially, it is very suitable for controlling the speed of 3-phase DC brushless motors to which
converted AC200~230V power supplies are applied. Fig. 1 shows the internal block diagram.
Functions
Integrated charge pump circuit
Integrated free wheel diodes
Integrated PWM circuit
Integrated FG circuit
Integrated over current protection circuit
Integrated rotating direction monitor circuit
Features
Speed control for a 3-phase DC brushless motor is available with an external microprocessor.
Bottom arm circuits can be operated in 20kHz chopping frequency of PWM.
Microprocessor
Analog
output
VCC
FG
DM
VSP
VCC(15V)
CB
VB supply
C0
VB
RU
RV
RW
HU HV HW
D2
C2
+-
C+ C-
D1
+
C1
-
CL
VS1
Clock
Charge Pump
FG
Rotating
Direction
Monitor
Comparator
+
-CMP
3-Phase
Distributor
SAW wave
Generator
Clock
CR VTR
RTR
CTR
Top Arm
Driver
Bottom Arm
Driver
Over Current Sense
-
+
Vref
0.5V
GL RS
VS2
GH1
VS
Hall ICs
MU
MV
MW
Motor
GH2
RS
Fig. 1 Block diagram
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PDE-3021-0

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