Quectel LC29H Series User Manual

GNSS Module Series
LC29H_Series_EVB_User_Guide 29 / 38
8 Measuring Power Consumption
8.1. Power Consumption at Different Stages
Module power consumption is measured in three stages: acquisition and tracking (including almanac
update), tracking (almanac update is over) and upon entering Backup mode.
⚫ Acquisition and tracking (including almanac update): 0 s to 12.5 min
⚫ Tracking (almanac update is over): > 12.5 min
⚫ Entering Backup mode
12.5 min
Acquisition and Tracking
(including almanac update)
Tracking
(almanac update is over)
Time
Enter Backup Mode
VCC
V_BCKP
0
12.5 min
Current
Figure 14: Power Consumption at Different Stages
8.2. VCC Power Consumption Measurement
Before measuring the VCC power consumption, you must connect the components to the EVB to ensure
that the module can communicate and fix normally. See Chapter 4.1 Testing via QGNSS.
Detailed steps for measuring VCC power consumption with an ammeter:
Step 1: Switch off the power supply (S201) and pull out the VCC_MODULE jumper cap (J601). Connect
the ammeter in series to both pins of J601 as shown below.

Quectel LC29H Series Specifications

General

Brand	Quectel
Model	LC29H Series
Category	Control Unit
Language	English