TVC-B30
5
© SGS electronic 2006-2023
2 Introduction
The controller is designed for an input voltage range from 6.5V to 24V.
This means that the controller works with the 6 cell NC packs commonly
used in the RC car sector, but also with lead batteries up to 24V. Two stan-
dard automotive fuses protect the model and the battery from excessive
currents.
The controller has a built-in BEC circuit to power the receiver from the drive
battery.
Please note that the removable BEC current decreases as the supply voltage
increases.
To disconnect the internal BEC regulator from the receiver supply, a jumper
must be removed.
As a failsafe function, an extensive plausibility check of the transmitter
signals is integrated in the software.
In addition, the controller has a temperature monitoring of the output
stage.
It switches off at 75°C and can be switched on again at 65°C and above.
To do this, the transmitter sticks must be set to the neutral position to
prevent a sudden start after the controller has cooled down.
2.1 Technology
The controller is microprocessor controlled. The processor operates with
16MHz clock frequency.
The output stage is constructed of N-channel MOSFETs, which have an
inrush resistance of only 0.008 Ohm and a continuous current capability of
60A. Three of these transistors each form a power stage branch, enabling
peak currents of up to 180A. To make effective use of the low internal
resistance, the output stage transistors are driven by sophisticated MOSFET
push-pull output stages with integrated charge pump.
Under normal ambient conditions, a continuous current of 30A is achieved.
The controller operates with a PWM frequency of 16kHz.
