Abstract: A voltage converter for medical devices includes a switch capacitor converter core including a plurality of power transistor switches configured to receive an input voltage and output an output voltage; a switch driver connected with the switch capacitor converter core and configured to turn on corresponding power transistor switches in the switch capacitor converter core so as to supply power to a load receiving the output voltage; a switch signal router connected with the switch driver and configured to selectively transmit signals required by the switch driver; a gain selection decoder connected with the switch signal router; a gain controller connected with the gain selection decoder, the gain selection decoder being configured to decode gain selection instructions transmitted from the gain controller; an input adjusting device connected with the gain controller and configured to receive the input voltage and a reference voltage, to indicate relationship between the input voltage and the reference voltage

Abstract: A voltage converter for medical devices includes a switch capacitor converter core including a plurality of power transistor switches configured to receive an input voltage and output an output voltage; a switch driver connected with the switch capacitor converter core and configured to turn on corresponding power transistor switches in the switch capacitor converter core so as to supply power to a load receiving the output voltage; a switch signal router connected with the switch driver and configured to selectively transmit signals required by the switch driver; a gain selection decoder connected with the switch signal router; a gain controller connected with the gain selection decoder, the gain selection decoder being configured to decode gain selection instructions transmitted from the gain controller; an input adjusting device connected with the gain controller and configured to receive the input voltage and a reference voltage, to indicate relationship between the input voltage and the reference voltage

Abstract: A homeostatic circuit for neural networks includes a feedback circuit, a first electronic switch, a synapse circuit, a second electronic switch, a third electronic switch and a first capacitor. The feedback circuit is configured to receive the total synaptic driving current and output a feedback voltage which varies with the total synaptic driving current. The first electronic switch is connected with the synapse circuit and the second electronic switch and configured to receive the feedback voltage and output a current control signal according to the feedback voltage. The second electronic switch is connected with the synapse circuit and the third electronic switch and configured to output a first voltage signal according to the current control signal. The third electronic switch is configured to adjust the total synaptic driving current in a direction opposite to variation tendency of the total synaptic driving current according to the first voltage signal.