Experimental results show the implementation of the proposed architecture in low-cost FPGA (Spartan 3A) with on-board oscillator clock frequency of 12 MHz which is multiplied internally by two with Digital Clock Manager (DCM) and derive the PWM signal of 1.5 MHz with a time resolution of 1 ...
a long working time is an essential requirement for the main control unit of the high-resolution camera.To im⁃prove the anti-single event effect and reliability of the master FPGA，an anti-fuse FPGA is used for the software system design.Functions such as focusing unit control，time code ...
Figure 13:Implementation of SPI Output in a Single Cycle Timed Loop Back to top Bi-Phase Modulation Bi-phase encoding or modulation is a very common type of data encoding used in many different protocols. It combines the data signal and clock signal into one signal line, reducing th...
Support3 channels of PWM+1 channel of EN: when PWM=1, the upper MOSFET turns on, and when PWM=0, the lower MOSFET turns on. When EN=0, all 6 MOSFET are turned off. Supportsangle sensorandphase current sampling ADCwith12bit resolution. For sensors >12bit, low-order truncation is requ...
Support 3 channels of PWM + 1 channel of EN: when PWM=1, the upper MOSFET turns on, and when PWM=0, the lower MOSFET turns on. When EN=0, all 6 MOSFET are turned off. Supports angle sensor and phase current sampling ADC with 12bit resolution. For sensors >12bit, low-order trunca...
the code asserts the b_Prog bit in order to initiate a configuration cycle to the FPGA. Then waitsuntil the b_Init input becomes high, meaning that the FPGA have cleared its configuration memory. Duringconfiguration data are downloaded in a synchronous manner. If thereis an error in the...
A good example of a high-performance FPGA is the Xilinx Virtex®-7 FPGA. Table 1 shows the main voltage-supply requirements for this part. There are also other less-demanding voltage rails such as VCCBRAM, VBATTand VREFthat require lower current levels. In many applications, a single power...
In Refs. [16,17] the PWM signal is quite high frequency. And it is not cost-effective also. Cause there are many simple low costs and high-resolution solutions to make PWM signals. But there are also some papers where multiple modulation techniques are proposed, such as [18]. This ...
PWM, DDS, CORDIC, to name a few, I use a 39-value look-up table with 12 bits resolution to approximate the sine wave. It turns to be a fairly good approximation. The reason to use 39 values is that after calculation I find this gives me an integer divisor of 2 to divide the 100...
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