Patent ID: 11923766
Assignee: SANTAK ELECTRONIC (SHENZHEN) CO., LTD.
Field: Measurement (Instruments)
Classification: CPC H  G | IPC G  H

Claim 2:
3. The apparatus of claim 1, wherein the control circuits each comprise a first resistor, a positive temperature coefficient thermistor and a second resistor connected in series and a first capacitor and a second capacitor connected in series, wherein a first terminal of the first resistor is connected to a first input voltage node, wherein a node between a first terminal of the second resistor and the thermistor is connected to a first output voltage node, wherein a second terminal of the second resistor is grounded, wherein a first terminal of the first capacitor is connected to the first output voltage node, wherein a second terminal of the first capacitor is grounded and is connected to a first terminal of the second capacitor, and wherein a second terminal of the second capacitor is connected to a second input voltage node and a second output voltage node.