The rapid development of mobile communication technology has made portable wireless communication products show a development trend. Products from a single smart phone, rapid development to smart watches, smart bracelets, portable medical monitoring and other multi-modal, multi-purpose different devices. All of these devices require battery power without exception, and the battery's power consumption is a major concern for consumers. In view of this, Electronic Enthusiasts invited Tektronix to interpret the battery power consumption test challenges of portable terminals and Tektronix' strategic layout.
Tektronix Power Product Manager Wang Qiong
Power consumption testing is very important
Ms. Wang Qiong, Power Product Manager of Tektronix Technologies, said that before the product actually enters the market, the power consumption of the product becomes a key factor that must be considered in product design and development. With the further improvement of power supply technology, more and more measurement functions are integrated into the power supply device, which further improves the integration of product functions and expands the application of the power supply. Among them, the use of high-precision power supply for product power consumption testing is a very important industry application, but also the main direction of further development of power technology.
In the R&D market, using a single device to simultaneously perform high-precision power supply and high-precision power consumption analysis can help R&D customers greatly improve test efficiency, reduce the complex operation of test equipment connections, and eliminate additional error interference. Very important. In addition, in addition to high-precision measurement, a good operating interface and intuitive display is also a must for new power supplies. How to display the measurement results in the most convenient and direct way, so that customers can get the required test data or waveforms simply and directly, it will also be very attractive to R&D customers.
Tektronix actively responds to the challenge of power consumption testing
In the power consumption test of mobile terminals, the biggest difficulty is concentrated on small current high precision measurement. In order to save power as much as possible, the customer will minimize the current consumption of the product, which in most cases, the power consumption of the product is maintained in the order of milliamperes or even microamps. In addition, under different working conditions, the power consumption of the product will change, which is reflected in the current waveform and becomes a series of pulses in the form of current. Therefore, correct measurement of the power consumption requires the test instrument to have both high sampling rate and high precision measurement capability. Ms. Wang Qiong pointed out: "To achieve this characteristic, we integrated the Keithley six-and-a-half-high-precision multimeter measurement unit in the high-precision power supply 2280S. The measuring unit of the multimeter is used to directly sample the power output. Under the structure, the current measurement accuracy of 10uA is achieved, and the continuous sampling rate is 3000 points per second. In addition, the computer is connected to the computer through the network cable, and the collected data can be continuously recorded in the computer memory for analysis of the later data analysis and waveform drawing. ."
As the volume of mobile terminal products is further reduced, functions are continuously strengthened, and the popularity of users is further increased. Power consumption testing will inevitably move toward higher precision, faster sampling rates, easier to use and lower cost. In recent years, Tektronix/Ki Shili has gradually developed a series of high-precision power supplies for R&D applications, and with Keithley's years of experience in small-signal measurement, it is striving to build power and high-precision measurement functions. A new type of desktop instrument. In addition, with the rejuvenation of users, the form of test instruments will further evolve to meet the needs of a new generation of test engineers. Tektronix has begun to use large-screen, graphical display technology in new test instruments, providing users with test data more intuitively and simplifying the learning interface.
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