Sshi energieopslagcircuit

What is hybrid sshi circuit?

The proposed circuit integrates the hybrid SSHI circuit with a diode bridge rectifier, which operates either in the P-SSHI mode or in the S-SSHI mode according to the PE voltage. Only eleven components implement the circuit. Thanks to the rectification scheme, the circuit can efficiently harvest energy, even if the rectifier voltage is quite high.

How does sshi circuit work?

The SSHI circuit requires an associated controller for switch timing. Ramadass et al. used a comparator with an external reference voltage and an adjustable RC delay circuit to control the synchronous switch. Wu et al. integrated the SSHI circuit with the active rectifier with the optimal flipping time.

What is sshi dssh circuit?

The SSHI scheme uses an LC resonant circuit for capacitor charging to reduce energy loss. ... ... The main shortcomings of the DSSH circuit are the complexity of the switch control, the need for an additional switch control circuit and auxiliary power supply, and the low conversion efficiency due to the inaccurate switch time control.

What is a typical sshi interface circuit?

Generally, the typical P–SSHI interface circuit consists of a PZT, an FBR, and a nonlinear switch in series with inductor L. The branch circuit consisting of a nonlinear switch and inductor is connected in parallel with the output of the equivalent circuit of PZT and the input of the FBR. Fig. 1. Topology of typical P–SSHI.

Can a modified sshi (SP-sshi) circuit be improved?

In this paper, a modified circuit and an improved analysis for the self-powered SSHI (SP-SSHI) are proposed. With the modified circuit, direct peak detection and better isolation among different units within the circuit are achieved, both of which result in the further removal on the dissipative components.

Is sshi a self-powered switch?

The adoption of the MPPT scheme enables the SSHI circuit to operate over a wide operation range. However, the MPPT circuit requires an additional controller and hence more power dissipation. This paper adopts a self-powered switch proposed in , but with a different rectification scheme and a circuit.