Resources Contact Us Home
Integrated LDO with variable resistive load

Image Number 5 for United States Patent #8143868.

To provide adequate compensation for a wide range of output loads, a low dropout (LDO) regulator has an amplifier, a pass transistor, a voltage divider, a compensation network, and a control circuit. The amplifier outputs a comparison result according to a reference signal and a feedback signal. The pass transistor generates an output current based on the comparison result of the amplifier. The voltage divider generates the feedback signal according to the output current. The compensation network couples the output of the pass transistor to a low-impedance node of the amplifier, and has a compensation capacitor and a variable resistor coupled to the compensation capacitor. The control circuit is coupled to the input of the pass transistor and to the variable resistor for controlling resistance of the variable resistor according to the output current of the pass transistor.

  Recently Added Patents
System and method for optimizing utilization of inventory space for dispensable articles
Method of measuring a displacement amount for an automobile suspension assembly
Electronic product design
Image forming apparatus, image forming method, and computer readable medium for identifying target-recording element using detection pattern
Error protection for pipeline resources
Maltol ether processes and intermediates
Authoring method, authoring device and program
  Randomly Featured Patents
Immobilized carbohydrate biosensor
Manufacturing method for a thin film magnetic head having fine crystal grain coil
Method and apparatus for mobility management in wireless networks
Metering strip and method for lateral flow assay devices
Climbing miniature rose plant named `JACmipcl`
Fan drafted lamp
Au-sn alloy powder for solder paste
Omnidirectional speaker system
Query generator
Method for providing a self-aligned conductive structure