Implementation of RVDT Signal Conditioner Based-on Costas Loop
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초록
A rotary variable differential transformer (RVDT) shows superior performance compared with the conventional rotation detection sensor. In this paper, we propose a RVDT signal conditioner based on Costas loop. The proposed RVDT signal conditioner applying digital signal processing techniques has an advantage that no additional circuit for phase correction is needed. We implement the proposed RVDT signal conditioner using Magna Chip/SK Hynix 180 nm CMOS process. The proposed signal conditioner is successfully verified in a test environment which is implemented by using a FPGA board and Matlab. The proposed signal conditioner shows a processing time of 0.045 seconds to demodulate the message signal at the sampling frequency of 160 kHz. The area of the proposed signal conditioner is 195470.7 in the number of equivalent gates and a total power dissipation of 47.4 mW at a power supply voltage of 1.8 V and the operating frequency of 24 MHz is achieved.
Abstract
A rotary variable differential transformer (RVDT) shows superior performance compared with the conventional rotation detection sensor. In this paper, we propose a RVDT signal conditioner based on Costas loop. The proposed RVDT signal conditioner applying digital signal processing techniques has an advantage that no additional circuit for phase correction is needed. We implement the proposed RVDT signal conditioner using Magna Chip/SK Hynix 180 nm CMOS process. The proposed signal conditioner is successfully verified in a test environment which is implemented by using a FPGA board and Matlab. The proposed signal conditioner shows a processing time of 0.045 seconds to demodulate the message signal at the sampling frequency of 160 kHz. The area of the proposed signal conditioner is 195470.7 in the number of equivalent gates and a total power dissipation of 47.4 mW at a power supply voltage of 1.8 V and the operating frequency of 24 MHz is achieved.
참고문헌 (11)
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