High-Performance Regulated Charge Pump with an Extended Range of Load Current

2016 ◽  
Vol E99.C (1) ◽  
pp. 143-146
Author(s):  
Roger Yubtzuan CHEN ◽  
Zong-Yi YANG ◽  
Hongchin LIN
Keyword(s):  
High Performance ◽  
Charge Pump ◽  
Load Current ◽  
Extended Range

Analysis and Design of High Performance Phase Frequency Detector, Charge Pump and Loop Filter Circuits for Phase Locked Loop in Wireless Applications

2016 ◽  
Vol 4 (2) ◽  
pp. 397
Author(s):  
P.N. Metange ◽  
K. B. Khanchandani
Keyword(s):  
Leakage Current ◽  
High Performance ◽  
Charge Pump ◽  
Phase Locked Loop ◽  
Loop Filter ◽  
Phase Frequency Detector ◽  
Analysis And Design ◽  
Wireless Applications ◽  
5 Ghz ◽  
Frequency Detector

<p>This paper presents the analysis and design of high performance phase frequency detector, charge pump and loop filter circuits for phase locked loop in wireless applications. The proposed phase frequency detector (PFD) consumes only 8 µW and utilises small area. Also, at 1.8V voltage supply the maximum operation frequency of the conventional PFD is 500 MHz whereas proposed PFD is 5 GHz. Hence, highly suitable for low power, high speed and low jitter applications.  The differential charge pump uses switches using NMOS and the inverter delays for up and down signals do not generate any offset due to its fully symmetric operation. This configuration doubles the range of output voltage compliance compared to single ended charge pump. Differential stage is less sensitive to the leakage current since leakage current behaves as common mode offset with the dual output stages. All the circuits are implemented using cadence 0.18 μm CMOS Process.</p>

Design of a high performance CMOS charge pump for phase-locked loop synthesizers

2011 ◽  
Vol 32 (7) ◽  
pp. 075007 ◽  
Author(s):  
Zhiqun Li ◽  
Shuangshuang Zheng ◽  
Ningbing Hou
Keyword(s):  
High Performance ◽  
Charge Pump ◽  
Phase Locked Loop

scholarly journals Charge pump system operation of DC-DC converter MAX1759 in the voltage boost mode

2017 ◽  
pp. 48-59
Author(s):  
V. K. Bityukov ◽  
A. V. Mironov ◽  
N. G. Mikhnevich ◽  
V. A. Petrov
Keyword(s):  
Integrated Circuit ◽  
Output Voltage ◽  
Charge Pump ◽  
Input Voltage ◽  
System Operation ◽  
Pump System ◽  
Load Current ◽  
First Time

The study tested output voltage pulsations and pulsations of voltage on a flying capacitor when MAX 1759 integrated circuit of DC-DC converter is pumped in a voltage boost mode with an output voltage of 3.6V and 5.2V at an input voltage of 3.2V and a load current in the range of 5...100 mA. The analysis of the results obtained shows that the hysteresis comparator is the basis for the charge pump control. The algorithm for operating the charge pump system is described for the first time in detail

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