Basic Laboratory Equipment Arbitrary Waveform Generator
Structural performance analysis of multifunction signal generator
Multi-function signal generator, also known as multi-function signal source, analog output voltage, current, mv, resistance, frequency, thermocouple, thermal resistance, switch quantity and other thermal signals, with 24V circuit power supply function, with milliamps suction function, built-in FRAM memory, with 64 groups of common output data storage function. HDE502 multifunctional signal generator is a multifunctional, high precision handheld thermal signal source.Military grade components, high precision, stable and reliable, precision up to 0.05%, 0.02%, can be used as calibration equipment for instrument manufacturers.
Multi-function signal generator, with step output, continuous output, analog transmitter output and other functions, adjust fast and stable, mainly used for analog sensor, transmitter, regulator, recorder, display and other automatic instrument signal output;It is powerful, high precision, small size, easy to carry, simple to use, can be used with multimeter, is the necessary tool for industrial instrument debugging, military grade products, can completely replace expensive imported high-grade instruments.
Multifunctional signal generator is widely used in laboratories, instrument calibration rooms, power plants, steel mills, chemical plants, cement plants, sewage treatment plants, thermal companies, etc. One instrument is equivalent to the function of several instruments, can meet the needs of laboratories and factories, is the necessary tool for field instrument technicians.
Design of signal generator
This design adopts top-down, hierarchical and modular design idea.
The LATCH module consists of six parallel 6-bit data latches, all of which use the "ORDER" in figure 2 as the data LATCH signal, as follows:
In order to get the three - phase parallel output SVPWM trigger signal.Three state machines are designed in the FSMS module to control the output of A, B and C phases respectively. According to equation 1, it is assumed that each switch of upper bridge arm works in a cycle in the transition sequence of "1-0-1", so each state machine can be designed into three states.Respectively represent the three working states of each phase switch in a cycle, and the holding time of the working state is determined by the input time.The FSMS worker process starts when the input time signal changes.