Step-up DC voltage regulator with continuous power transfer to load
The DC voltage regulator addresses inefficiencies by using a dual-branch design with capacitors and inductances to reduce currents and ensure continuous energy transfer, enhancing efficiency.
Patent Information
- Authority / Receiving Office
- RU · RU
- Patent Type
- Patents
- Current Assignee / Owner
- OBSHCHESTVO S OGRANICHENNOI OTVETSTVENNOSTIU INPUT TRANSFORMEISHN AUTPUT KORPOREISHN
- Filing Date
- 2026-02-01
- Publication Date
- 2026-06-30
AI Technical Summary
Existing constant voltage regulators that increase output voltage struggle with inefficiencies due to high pulse currents through the regulating key and shunt diode, and lack continuous energy transfer to the load.
A DC voltage regulator design incorporating two parallel branches with series-connected capacitors and linear inductances, along with an L-shaped LC filter and a shunt diode, to manage energy transfer and reduce key currents.
Enables efficient energy conversion to the load with reduced key and shunt diode currents, achieving continuous energy transfer.
Smart Images
Figure 00000001_ABST
Abstract
Description
[0001] The invention relates to electrical engineering, in particular to constant voltage regulators, and can be used in secondary power supply systems for regulating and stabilizing constant output voltage.
[0002] DC voltage regulators are known that increase the output voltage in relation to the input DC voltage [1].
[0003] The disadvantage of known constant voltage regulators that increase the output voltage in relation to the input constant voltage is the inability to reduce the pulse current through the regulating key and shunt diode, increase efficiency, and continuously transfer energy to the load.
[0004] The closest in technical essence to the proposed device is a step-up DC voltage regulator [1].
[0005] The disadvantage of this DC step-up voltage regulator is the inability to reduce the pulse current through the regulating key and shunt diode and increase efficiency, continuous energy transfer to the load.
[0006] The stated objective is achieved in that in the device, instead of one linear inductance, two linear inductances with series-connected capacitors are included, forming two branches connected in parallel in such a way that the first branch with a linear inductance, and the second with a capacitor are connected to the positive terminal of the constant input voltage, and the capacitor of the first branch and the linear inductance of the second branch are connected to the input terminals of an L-shaped LC filter, to the output terminals of which a load is connected, the second terminal of which is connected to the negative terminal of the input constant voltage, forming a common bus, while between the two branches a shunt diode is included, the anode to the linear inductance of the first branch, connected to the positive terminal of the constant input voltage, and the cathode to the linear inductance of the second branch, the second pole connected to the capacitor of the first branch, to the common connection point of which an L-shaped LC filter is included,to the output terminals of which the load is connected, the regulating key is connected with its positive pole to the anode of the shunt diode, and with its negative pole to the common bus.
[0007] Fig. 1 shows the basic electrical circuit diagram of the proposed step-up DC voltage regulator with continuous energy transfer to the load.
[0008] It (Fig. 1) has a power regulating switch 1, two linear inductances 2, 3, with each of which capacitors 4, 5 are connected in series, forming two branches connected in parallel, between which a shunt diode 6 is connected, the anode of which is connected to the inductance of the first branch connected to the positive terminal of the input DC voltage source, and the cathode to the inductance of the second branch, the second terminal of which is connected to the capacitor 4 of the first branch, to the common connection point of which an L-shaped LC filter with a parallel-connected load 8 is connected by an input terminal, the second pole of which is connected to the negative terminal of the input DC voltage source forming a common bus, and the regulating switch 1 is connected with its positive pole to the anode of the shunt diode 6, and with its negative pole to the common bus.
[0009] The operating principle of the proposed step-up DC voltage regulator with continuous energy transfer to the load will be considered based on the assumption of ideal key elements, steady-state operating mode, and continuous change of magnetic fluxes in the cores of linear inductors.
[0010] Let us denote by D the duration of the on state of key 1 relative to period T.
[0011] When switch 1 is closed, during time DT, two processes occur simultaneously: accumulation of magnetic energy in linear inductances 2, 3 from the input DC voltage source and transfer of energy from capacitor 4 charged to voltage V IN D / (1-D) in a T-shaped LC filter with a load, resulting in a differential current flowing through the control key, reducing the key current by the amount of the load current.
[0012] After the regulating key 1 is turned off, the polarity of the emf on all windings of the magnetic elements is reversed and the shunt diode 6 is turned on, which is in a conducting state for a time (1-D)T, through which the capacitors 4.5 are charged to a voltage V IN D / (1-D), and the load current is subtracted from the current of the shunt diode, since the current of the linear inductance of the L-shaped LC filter is switched to the constant input voltage source, capacitors 4,5 and flows towards the forward current through the shunt diode 6, and a positive voltage V acts at the input of the L-shaped LC filter IN (1+D) / (1-D) and energy continues to flow into the load. As a result, the output voltage V is established across the load. IN / (1-D).
[0013] Thus, the proposed step-up DC voltage regulator with continuous energy transfer to the load, unlike the known device, allows for highly efficient conversion of the consumed energy from the input DC voltage source by transferring energy to the load over time T with simultaneous subtraction of the load current from the current of the regulating switch 1 and the shunt diode 6.
[0014] Sources of information
[0015] 1. Polikarpov A.G., Sergienko E.F. Single-ended converters in power supply devices of electronic equipment, “Radio and Communications”, 1989, p. 6, Fig. 1.2.
Claims
A step-up DC voltage regulator with continuous energy transfer to a load, comprising a linear inductance, the first pole of which is connected to the positive terminal of the input DC voltage source, the other pole of which is connected through a regulating key to the negative terminal of the input DC voltage source, forming a common bus, a shunt diode, connected with its anode to the common connection point of the linear inductance with the regulating key, and with its cathode to an output capacitor forming an output voltage with a parallel-connected load, the second pole of which is connected to the common bus, characterized in that in the step-up DC voltage regulator with continuous energy transfer to the load, a capacitor is connected in series with the linear inductance, forming a first branch, in parallel to which a second branch is connected, made up of a series connection of a second linear inductance and a second capacitor,connected to the positive terminal of the input DC voltage source, and between the two branches a shunt diode is connected with its anode to the common connection point of the first linear inductance with the first capacitor, and its cathode to the common connection point of the second capacitor with the second linear inductance, wherein the parallel branches are connected with the first pole to the positive terminal of the input DC voltage source, with the second pole connected to the input terminal of an L-shaped LC filter, to the output terminal of which a load is connected, the second terminal of which is connected to the negative terminal of the input DC voltage source, forming a common bus, and the regulating key is connected with the positive pole to the anode of the shunt diode, and with the negative pole to the common bus.