Power supply loop monitoring system
A monitoring system and loop technology, applied in hardware monitoring, data processing power supply, electrical digital data processing, etc., can solve problems such as motherboard temperature rise, large conduction loss, motherboard temperature rise, etc., to prevent signal distortion and achieve high reliability. Effect
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Embodiment 1
[0012] Embodiment 1, a power loop monitoring system, including a power acquisition module and a screening and calibration module, the power acquisition module uses a power sampler J1 of model YK-3D3 to collect the output power signal of the power supply loop, and the screening and calibration module uses a triode Q1 and transistor Q2 detect the output signal amplitude of the power acquisition module, and at the same time use the operational amplifier AR2, diode D2, and diode D3 to form a peak circuit to screen the peak signal, and then use the phase-shifting circuit composed of the operational amplifier AR3 and capacitor C3 to shift the signal for one signal Phase, the two-way signal uses the inductor L1, the capacitor C4-capacitor C6 to form a frequency modulation circuit to stabilize the signal frequency, and the last two-way signal is input together into the buffer circuit composed of the operational amplifier AR4 and the resistor R16, and the signal is buffered and sent by t...
Embodiment 2
[0015] Embodiment 2. On the basis of Embodiment 1, the power acquisition module selects the power sampler J1 of model YK-3D3 to collect the output power signal of the power circuit, and uses the step-down circuit composed of the operational amplifier AR1, capacitor C1, and capacitor C2 at the same time. The noise circuit reduces the signal noise. The capacitor C1 is a decoupling capacitor to reduce the noise ratio of the signal source. At the same time, the capacitor C2 is a filter capacitor. The operational amplifier AR1 acts as a power amplifier. The ground terminal of the sampler J1 is grounded, the output terminal of the power sampler J1 is connected to the negative pole of the voltage regulator tube D1 and one end of the resistor R1 and the capacitor C1, and the other end of the resistor R1 is connected to one end of the capacitor C2 and the non-inverting input terminal of the operational amplifier AR1 , the other end of the capacitor C2 is grounded, the output terminal of...
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