Hesai QT128C2X, Руководство пользователя

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Appendix III Power Supply Requirements
To ensure the input voltage at the lidar's connector is within 9 to 55 V DC, please check the specifications of the power supply and cables.
■ Power Supply
Should be able to provide at least 4 A, 30 W.
■ Cable Wire Gauge
The lidar uses 18 AWG power cables. We recommend using cables of 18 AWG or thicker wire gauges.
■ Minimum Source Voltage
Calculations can be made as follows:
· Cable length from the power source to the lidar connector is defined as
L
(unit: m).
· When using 18 AWG (24.7 Ω/km) cables, cable resistance is estimated as
R
1
= 0.05L
(unit: Ω).
· Resistance of the lidar connector described in Section 2.2 (Interfaces) is defined as
R
2
, excluding jumper cable assembly.
R
2
≤ 20 mΩ
.
· In all operating conditions, the lidar's peak power consumption
P
peak
≤ 30 W
.
· A conservative estimate of the minimum source voltage is
U
source,min
= 9 +
P
peak,max
9
*(R
1
+ R
2,max
) ≈ (9.1 + 0.2L)
(unit: V).
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