Output Voltage Detection Circuit; Voltage Generation Circuit - Renesas RX200 Series User Manual

Renesas RX Family
5.1.4

Output voltage detection circuit

The INV-BRD has the circuit that inputs bus voltage and three-phase output voltage (U, V and W phase) into
the AD pin of the microcontroller through resistive voltage divider. Relation between the three-phase output
voltage, the bus voltage and the detection voltage is described by the below equation (3).
5.1.5

Voltage generation circuit

On the INV-BRD, the gate driver voltage ("+12V" in the schematic) is generated from the 5V power supply
("+5V" in the schematic) with the boost converter. If 5V is not supplied from the CPU board, the buck converter
on the INV-BRD generates 5V from the voltage input (12 to 48V) from the DC jack or terminal block.
5V generation
Gate driver
generation
R12UZ0111EJ0100 Rev 1.00
November 15, 2022
Vout [ �� ] =
10 × 10
10k W
Vin
470 W
Figure 5-4 Output voltage detection circuit
Table 5-1
Input
Item voltage
[V]
12～48
voltage 5
470
× ������ [ �� ]
3
+ 470
Vout
0.1mF
Voltage generation
Output voltage
(TYP.) [V]
5
11.4
MCK-RX26T User's Manual
(3)
V
BUS
V
U
V
V
V
W
Output current
(Max) [A]
0.6
-
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