Аннотация:An automated test bench for the study of the characteristics of various kinds of chips of mobile sources of regulated charge pump secondary power supply receiving energy from batteries was created.Having a modular structure, the test bench includes, in addition to the test charge pump module, power supply, control, load, display modules, and a USB module for connection with a computer.The test bench enables carrying out research of various types of chips by changing only one small measuring board.The control module is based on PIC18F2550 microcontroller.The automated measuring system consists of a multimeter and oscilloscope.The investigated characteristics are output voltage as a function of load current, output voltage as a function of supply voltage, the forms of the output voltage ripple, the response of chips to a stepped load transition.One of the major goals of the research is to study algorithms of the charge pump circuits.A program for controlling the test bench by creating a virtual front panel was developed.Together with a virtual panel of the oscilloscope and available multimeter software this allows controlling the equipment operating parameters and making measurements remotely over the Internet.Using the created test bench new experimental data on all of the above characteristics for MAX1759 chip were obtained, and an algorithm of this chip in the buck mode operation was studied for the first time.
