High-efficiency multipath voltage output circuit

Abstract

The utility model provides a high-efficiency multipath voltage output circuit, which comprises a resistor R1, a resistor R2, a resistor R3, a triode Q1, a triode Q2, an optocoupler OC1 and a diode D1, one end of the resistor R1 is connected with an emitter of the triode Q1, a C pin of the optocoupler OC1 and a power supply VCC, and the other end of the resistor R1 is connected with the resistor R3 and a base of the triode Q1. According to the high-efficiency multi-path voltage output circuit, a voltage chip is not needed, positive and negative half waves of alternating current are fully utilized, and multiple paths of different voltages with certain load capacity can be generated.

Description

Technical Field

[0001] The utility model relates to the field of electronic technology, in particular to a high-efficiency multi-channel voltage output circuit. Background Art

[0002] A multi-channel voltage output circuit is a circuit design that can provide multiple different or same voltage outputs in the same circuit. This circuit is very common in electronic devices because it can meet the needs of a variety of different loads while reducing the size and cost of the circuit and improving the overall performance of the system.

[0003] Existing multi-channel voltage output circuits generally use chip control, which is relatively costly and large in size. Utility Model Content

[0004] In order to make up for the deficiencies of the prior art, the embodiments of the present application provide a high-efficiency multi-channel voltage output circuit, which solves the problems mentioned in the prior art.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A high-efficiency multi-channel voltage output circuit comprises a fuse FUSE1, a varistor ZR1, an X capacitor CX1, a resistor R1 and a resistor R2, one end of the fuse FUSE1 is connected to a live wire L of an alternating current, the other end of the fuse FUSE1 is connected to the resistor R1, the resistor R2, the capacitor E1, the capacitor E2, the varistor ZR1, the X capacitor CX1, the anode of the diode Z1, the cathode of the voltage stabilizing chip U1 and the voltage VCC1, the other end of the varistor ZR1 is connected to the other end of the X capacitor CX1, the resistor R7 and the zero line N of the alternating current, the other end of the resistor R1 is connected to the other end of the capacitor E1, the diode Z1 and the cathode of the voltage stabilizing chip U1 and the voltage VCC1 The cathode of the diode Z1 and the cathode of the diode D1, the other end of the resistor R7 is connected to the capacitor C1 and the resistor R4, the other end of the resistor R4 is connected to the resistor R5, the other end of the resistor R5 is connected to the other end of the capacitor C1, the anode of the diode D1 and the cathode of the diode D2, the anode of the diode D2 is connected to the other end of the capacitor E3 and the resistor R8, the other end of the resistor R8 is connected to the capacitor E4, the anode of the diode Z2 and the resistor R6, the other end of the capacitor E2 is connected to the anode of the voltage stabilizing chip U1, the resistor R3 and the other end of the resistor R6, the other end of the resistor R2 is connected to the other end of the resistor R3 and the control electrode of the voltage stabilizing chip U1.

[0007] As a further technical solution of the utility model: the diode Z1 is a voltage-stabilizing diode.

[0008] As a further technical solution of the utility model: the diode Z2 is a voltage-stabilizing diode.

[0009] As a further technical solution of the utility model: the diode D1 is a rectifier diode.

[0010] As a further technical solution of the utility model: the diode D2 is a rectifier diode.

[0011] As a further technical solution of the utility model: the voltage stabilizing chip U1 is a three-terminal adjustable reference source.

[0012] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages: the utility model has a high-efficiency multi-channel voltage output circuit, does not require a voltage chip, fully utilizes the positive and negative half-waves of the alternating current, and can generate multiple different voltages with certain load capacities. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model provides a schematic diagram of a high-efficiency multi-channel voltage output circuit. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the utility model are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] Reference Figure 1 A high-efficiency multi-channel voltage output circuit includes a resistor R1, a resistor R2, a resistor R3, a transistor Q1, a transistor Q2, an optocoupler OC1 and a diode D1, one end of the resistor R1 is connected to the emitter of the transistor Q1, the C pin of the optocoupler OC1 and a power supply VCC, the other end of the resistor R1 is connected to the resistor R3 and the base of the transistor Q1, the other end of the resistor R3 is connected to the cathode of the diode D1 and the collector of the transistor Q2, the base of the transistor Q2 is connected to the resistor R4, the resistor R5 and the resistor R7, the other end of the resistor R4 is connected to the collector of the transistor Q1, the other end of the resistor R7 is connected to the resistor R6 and the emitter of the transistor Q2, the other end of the resistor R5 is connected to the other end of the resistor R6 and the E pin of the optocoupler OC1, the A pin of the optocoupler OC1 is connected to the resistor R2, the K pin of the optocoupler OC1 is grounded, the anode of the diode D1 is connected to the COM signal, and the other end of the resistor R2 is connected to the protection signal OPT.

[0016] Here’s how it works:

[0017] When the AC output positive half-cycle voltage passes through the fuse FUSE1, varistor ZR1 and X capacitor CX1 devices, it passes through the voltage regulator chip U1 and voltage regulator tube Z2, resistor R8, rectifier diode D2, and after passing through the resistor and capacitor elements C1 and R7, it returns to the zero line N. In this process, with GND as the reference ground, two voltages VCC1 and VCC2 will be produced. The voltage value of VCC1 depends on the voltage divider value of R3 and R2, VCC1 = 2.5*(1+R2 / R3). The voltage value of VCC2 depends on the value of the voltage regulator tube Z2.

[0018] When the AC output is in the negative half cycle, the voltage passes through the resistor and capacitor components C1 and R7, then passes through the rectifier diode D1, and then through the voltage regulator Z1, and flows back to the live wire. In this process, VCC3 is generated. The reference point of this voltage is VCC1, and the voltage threshold depends on the value of the voltage regulator Z1.

[0019] In this circuit, electrolytic capacitors E1, E2, E3, and E4 mainly play the role of energy storage.

[0020] The resistors R4 and R6 are mainly used to discharge the capacitor C1 after power failure.

[0021] The components selected for the entire circuit are low-cost, and all ordinary conventional devices are used, with considerable economic benefits, good versatility and timeliness, high reliability, and industrial advantages. The selected devices and materials are all universal parts, and the industrialization of the circuit is easy to achieve. This circuit has been verified by a series of tests, and the circuit consistency is very good, which is of promotion significance.

[0022] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0023] In addition, it should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment have also been appropriately combined to form other implementation modes that are easy for those skilled in the art to understand.

Claims

1. An efficient multi-channel voltage output circuit, comprising a fuse FUSE1, a varistor ZR1, an X capacitor CX1, a resistor R1 and a resistor R2, characterized in that: One end of the fuse FUSE1 is connected to the live wire L of the alternating current, the other end of the fuse FUSE1 is connected to the resistor R1, the resistor R2, the capacitor E1, the capacitor E2, the varistor ZR1, the X capacitor CX1, the anode of the diode Z1, the cathode of the voltage regulator chip U1 and the voltage VCC1, the other end of the varistor ZR1 is connected to the other end of the X capacitor CX1, the resistor R7 and the neutral wire N of the alternating current, the other end of the resistor R1 is connected to the other end of the capacitor E1, the cathode of the diode Z1 and the cathode of the diode D1, the other end of the resistor R7 Capacitor C1 and resistor R4 are connected, the other end of resistor R4 is connected to resistor R5, the other end of resistor R5 is connected to the other end of capacitor C1, the anode of diode D1 and the cathode of diode D2, the anode of diode D2 is connected to the other end of capacitor E3 and resistor R8, the other end of resistor R8 is connected to capacitor E4, the anode of diode Z2 and resistor R6, the other end of capacitor E2 is connected to the anode of voltage regulator chip U1, resistor R3 and the other end of resistor R6, the other end of resistor R2 is connected to the other end of resistor R3 and the control electrode of voltage regulator chip U1.

2. The high-efficiency multi-channel voltage output circuit according to claim 1, characterized in that: The diode Z1 is a voltage stabilizing diode.

3. The high-efficiency multi-channel voltage output circuit according to claim 1, characterized in that: The diode Z2 is a voltage stabilizing diode.

4. The high-efficiency multi-channel voltage output circuit according to claim 1, characterized in that: The diode D1 is a rectifier diode.

5. The high-efficiency multi-channel voltage output circuit according to claim 1, characterized in that: The diode D2 is a rectifier diode.

6. The high-efficiency multi-channel voltage output circuit according to claim 1, characterized in that: The voltage stabilizing chip U1 is a three-terminal adjustable reference source.

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