SECTION FIVE – COMPONENT DESCRIPTION
DS2000 USER’S MANUAL (rev.C)
5.6
In applications where high or continuous recovery energy is anticipated, consult your
Moog sales representative, requesting an application review. In case of different
resistors, different parameters must be set.
5.3 HIGH POWER OUTPUT SECTION
The high power supply section has the following features:
• Three-phase output bridge
• PWM technology
• 10kHz switching frequency
5.3.1 CIRCUIT DESCRIPTION
5.3.1.1 HIGH POWER OUTPUT SECTION
The direct current energy available on the DC BUS is converted into current supplied to
the motor by an output three-phase bridge formed by IGBT.
By means of PWM technology the output currents are generated with a high energy
efficiency ratio.
The word PWM (Pulse Width Modulation) identifies a way of controlling the power devices
in order to avoid any linear conduction status, and have only conduction and cut off status,
to reduce the power dissipation. This way allows a high efficiency in energy conversion
and, as a consequence, reduced energy losses.
The 10kHz switching frequency allows to limit the heating effects per current ripple inside
the motor.
Each IGBT is individually protected from short circuit and overload and its protection is
directly managed by the control card.
Fig. 5.2 – Power output section
To Next Page
Loading...
Need help?
General
