Oscilloscope based on low-power dissipation dual-amplification circuit

• Main Authors: XIE ZHONGMING, WU HUILI, SUN DAOMING, SIMA YUN
• Format: Patent
• Language: English
• Published: 25.02.2015
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The invention discloses an oscilloscope based on a low-power dissipation dual-amplification circuit. The oscilloscope comprises an attenuator, the pre-amplifier, a sampler, an analog-digital converter, a memorizer, a sampling clock, a time-base circuit, a crystal oscillator, a central processing unit (CPU), a displayer and an antenna module. The attenuator, the pre-amplifier, the sampler, the analog-digital converter, the memorizer, the CPU and the displayer are connected in sequence; an analog-digital conversion circuit is also connected with the sampling clock; the time-base circuit is connected with the sampling clock, the crystal oscillator and the CPU; the CPU is also connected with the antenna module. The CPU is adopted for the oscilloscope, operational capability and the processing function are powerful, performance of the oscilloscope is strengthened, and a lot of extensible ports are added; meanwhile, the circuit of a sampling portion is divided into multiple modules which involve the sampling clock, the time-base circuit, the crystal oscillator and the like, the functions are elaborated, reduction of errors of internal circuits is facilitated, and internal settings are user-friendlier.