Inductorless Switching Regulator Circuit
#switching regulator
#inductorless
#voltage multiplier
#diode-capacitor network
#feedback control
#low current
#voltage regulation
#power management
Description: In conventional applications, switching-regulator integrated circuits (ICs) regulate the output voltage (VQVT) by controlling the current through an external inductor. However, the IC in configuration A utilizes a diode-capacitor network in place of the inductor, providing comparable performance for small load applications. This network has the capability to double, triple, or quadruple the input voltage. Feedback from the resistor divider (RI/R2) enables IC1 to set the regulated output level. As illustrated, the circuit can derive 12 V from an input range of 5 to 12 V and provide up to 2 mA of output current. Additionally, incorporating a noninverting MOS driver (B) increases the available output current to 20 mA. By substituting the diode-capacitor network for an inductor, this switching-regulator IC can deliver 2 mA with comparable line and load regulation, albeit with slightly reduced efficiency.
The described circuit employs a switching-regulator IC designed for applications requiring efficient voltage regulation without the use of traditional inductors. The diode-capacitor network serves as an alternative energy storage mechanism, allowing for voltage multiplication while maintaining a compact form factor. This configuration is particularly advantageous in low-power applications where space and efficiency are critical.
The feedback mechanism utilizing the resistor divider (RI/R2) is essential for maintaining the desired output voltage. By adjusting the values of RI and R2, the output voltage can be finely tuned to meet specific requirements. The design's capability to derive 12 V from input voltages ranging from 5 to 12 V demonstrates its versatility and adaptability to various power supply scenarios.
The addition of a noninverting MOS driver enhances the circuit's output capabilities, allowing it to supply up to 20 mA of current, which is beneficial for driving loads that require higher current levels. This modification may involve careful selection of the MOSFET to ensure it operates efficiently within the given parameters.
Overall, this circuit exemplifies innovative approaches in voltage regulation, particularly for applications where traditional inductive components may introduce size, weight, or efficiency challenges. The combination of a diode-capacitor network and a MOS driver provides a robust solution for achieving reliable voltage regulation in compact electronic systems. In conventional applications, switching-regulator ICs regulate VQVT by controlling the current through an external inductor. The IC in A, however, driving a diode-capacitor network in place of the inductor, offers comparable performance for small loads.
The network can double, triple, or quadruple the input voltage. Feedback from the RI/R2 voltage divider enables IC1 to set the regulated-output, level. (As shown, the circuit derives 12 V from a 5- to 12-V input and provides as much as 2 mA of output current). Adding a noninverting MOS driver (B) boosts the available output current to 20 mA. Substituting the diode-capacitor network shown for an inductor allows this switching-regulator IC to deliver 2 mA at comparable line and load regulation, with somewhat reduced efficiency.
The described circuit employs a switching-regulator IC designed for applications requiring efficient voltage regulation without the use of traditional inductors. The diode-capacitor network serves as an alternative energy storage mechanism, allowing for voltage multiplication while maintaining a compact form factor. This configuration is particularly advantageous in low-power applications where space and efficiency are critical.
The feedback mechanism utilizing the resistor divider (RI/R2) is essential for maintaining the desired output voltage. By adjusting the values of RI and R2, the output voltage can be finely tuned to meet specific requirements. The design's capability to derive 12 V from input voltages ranging from 5 to 12 V demonstrates its versatility and adaptability to various power supply scenarios.
The addition of a noninverting MOS driver enhances the circuit's output capabilities, allowing it to supply up to 20 mA of current, which is beneficial for driving loads that require higher current levels. This modification may involve careful selection of the MOSFET to ensure it operates efficiently within the given parameters.
Overall, this circuit exemplifies innovative approaches in voltage regulation, particularly for applications where traditional inductive components may introduce size, weight, or efficiency challenges. The combination of a diode-capacitor network and a MOS driver provides a robust solution for achieving reliable voltage regulation in compact electronic systems. In conventional applications, switching-regulator ICs regulate VQVT by controlling the current through an external inductor. The IC in A, however, driving a diode-capacitor network in place of the inductor, offers comparable performance for small loads.
The network can double, triple, or quadruple the input voltage. Feedback from the RI/R2 voltage divider enables IC1 to set the regulated-output, level. (As shown, the circuit derives 12 V from a 5- to 12-V input and provides as much as 2 mA of output current). Adding a noninverting MOS driver (B) boosts the available output current to 20 mA. Substituting the diode-capacitor network shown for an inductor allows this switching-regulator IC to deliver 2 mA at comparable line and load regulation, with somewhat reduced efficiency.
Simple Pre-Regulator
There will be many occasions when it is beneficial to utilize the P05 supply module sourced from a higher voltage supply. For instance, this could be advantageous when integrating balanced inputs.
The P05 supply module is designed to facilitate the conversion...
Voltage Multiplier for Power LED Driver
This power supply circuit is designed around a standard 12VAC landscape lighting transformer. The availability and selection of transformers have long posed challenges for experimenters, often leading them to use potentially hazardous off-line capacitor-limited power supplies. However, the widely available...
Switching Voltage Regulator
The Analog Devices ACP3610 is a voltage doubler that operates using a switched-capacitor converter based on the push-pull principle. The output switching frequency is approximately 550 kHz. The push-pull configuration involves two charge pumps that function in parallel but in...
Power Path Management Battery Charger
Powering the system is required by many applications while charging the battery simultaneously. Interaction between the system and charger may result in a...
Power management in electronic systems is critical, particularly in applications that necessitate simultaneous operation and battery charging. This...
schematics Buck switching regulator based on ATtiny84a -- please critique!
The microcontroller will not be able to drive the gate of Q1 effectively, as GPIO pins typically can only source a few milliamps, resulting in slow turn-on and turn-off times. This limitation will affect the performance of the high-side switch....
Variable Voltage Regulation
Controlling the output voltage from a regulator can be made variable in three ways:
1. Using a fixed reference zener diode to increase the output by the value of the zener
2. A variable resistor for variable output, note that...
Power Supply Design Made Easy
Utilizing Integrated Switching Regulators in Power Supply Design Engineers often find themselves pondering where to begin when designing power supplies. Key decisions must be made regarding...
Integrated switching regulators are critical components in modern power supply design, offering efficient voltage conversion...
Design and making of the stabilized voltage supply of switch
Under the loading condition of the resistance, the output voltage (Uo) variable range is from 30V to 36V, with a maximum output current (Imax) of 2A. When the input voltage (U2) changes from 15V to 21V, the voltage regulation factor...
Ultra Low Current Oscillator
The circuit operates as a unijunction transistor relaxation oscillator. The base of the lower PNP transistor is biased at approximately half of the supply voltage. As the 100pF capacitor charges through the 1GΩ resistor, the base of the upper NPN...