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Self-generating power supply implanted device charging and discharging circuit

An implanted device and self-generating technology, applied in the field of medical electronics, can solve the problems of small output current and weak driving load capacity, and achieve the effects of low loss, easy integration and simple circuit

Pending Publication Date: 2022-05-13
WENZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the external characteristics of the self-generating power supply present a voltage source with a large internal resistance, its output current is small, and its driving load capacity is weak.

Method used

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  • Self-generating power supply implanted device charging and discharging circuit
  • Self-generating power supply implanted device charging and discharging circuit
  • Self-generating power supply implanted device charging and discharging circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0019] Embodiment: a charging and discharging circuit for an implanted device with self-generated power supply, as attached figure 1 As shown, it includes a charging switch connected in sequence, an inductor L, n charging and discharging units, and a high-frequency filter capacitor C f and the discharge switch; the charge switch is controlled by the input voltage V d Connected PMOS tube and PMOS tube composition, the discharge switch consists of a PMOS tube Composition, PMOS tube One of the pins of the gate is connected to the PMOS tube The drain connection of the PMOS transistor The other pin of the gate and the PMOS transistor The sources are connected with the PMOS tube The source is connected, and the PMOS tube The source is grounded, the PMOS tube The source and PMOS transistor The gates of both are connected to one end of the inductor L, and the PMOS tube The drain is connected to the supply V d connection, PMOS tube The gate and discharge contr...

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PUM

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Abstract

The invention discloses a self-generating and self-supplying implanted device charging and discharging circuit, which comprises n charging and discharging units, a charging switch, an inductor L, a high-frequency filter capacitor Cf and a discharging switch, the charge and discharge circuit unit is composed of a PMOS tube and an NMOS tube which are the same, a grid electrode of the NMOS tube is connected with one end of a capacitor, a source electrode of the NMOS tube and the other end of the capacitor are both grounded, a drain electrode of the NMOS tube is connected with a source electrode of the PMOS tube, and a source electrode of the PMOS tube is connected with the other end of the capacitor; the charging switch is composed of a PMOS (P-channel Metal Oxide Semiconductor) tube and a PMOS tube, and the discharging switch is composed of a PMOS tube; one end of the high-frequency filter capacitor Cf is connected with the source electrode of the PMOS tube, and the other end of the high-frequency filter capacitor Cf is grounded; through the overall structure arrangement, the current output capability can be improved, overload of the charging power supply is avoided, high efficiency and reliability of equipment are ensured, and the device is low in cost and loss and easy to integrate.

Description

technical field [0001] The invention relates to the field of medical electronics, in particular to a charging and discharging circuit for an implanted device that generates power by itself. Background technique [0002] Implantable devices, such as pacemakers, defibrillators, CRTDs, etc., are used to monitor a patient's physical condition and / or treat a patient-related disease. On the one hand, limited by size and safety considerations, the power supply of implanted devices currently mainly uses self-generated power supply devices. The advantage of this solution is that the power supply device can achieve long-life work without a complicated subcutaneous charging system, which reduces system complexity and cost. However, the external characteristics of the self-generating power supply present a voltage source with a large internal resistance, its output current is small, and its driving load capacity is weak. On the other hand, these devices implanted in the body must be a...

Claims

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Application Information

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IPC IPC(8): H02J7/00H02J7/34
CPCH02J7/0068H02J7/007H02J7/0029H02J7/34
Inventor 彭志辉
Owner WENZHOU UNIVERSITY
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