CD4069UB-based back-up power source inverter

A backup power supply and inverter technology, which is applied in the direction of electrical components, output power conversion devices, AC power input conversion to DC power output, etc., can solve the problem that square wave inverters cannot carry inductive loads, etc., and reach the scope of application wide, response speed improvement, noise reduction effect

Inactive Publication Date: 2017-07-07
HARBIN MIMI RICE IND TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a backup power inverter based on CD4069UB for the temperature control box of the optical fiber attitude equipment, so as to overcome the disadvantage that the square wave inverter cannot carry an inductive load

Method used

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  • CD4069UB-based back-up power source inverter
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Embodiment 1

[0012] like figure 1 as shown, figure 1 It is a block diagram of the principle of the present invention. It can be seen from the figure that the inverter circuit adopts a simple one-time inverter method. The square wave generating circuit is composed of the CD4069UB peripheral circuit, and then the square wave generating circuit is composed of the CD4069UB peripheral circuit. One of them passes through an inverter and then forms a signal inversion with the other square wave signal. The two inverted square wave signals pass through two basic common-emitter amplifier circuits composed of two triodes to amplify the voltage of the square wave signal. As an inverted square wave signal, it passes through the full-bridge inverter circuit, in which the enhanced MOSFET field effect tube is the core component; at this time, in the circuit, there are two groups of P and N channel enhanced MOSFET field effect tubes respectively. A full-bridge inverter circuit composed of tubes, when...

Embodiment 2

[0014] Such as figure 2 as shown, figure 2 SG3525A pin schematic diagram, is an integrated pulse width modulator produced by Silicon General (Silicon General) SG3525A is a new type of double-terminal output pulse width modulator, the operating frequency is higher than 100kHz, and the operating temperature is 0°C ~70℃, it is suitable to form a 100W~500W medium power push-pull output switching power supply. Pins 1 and 2 are the reverse input terminal and the same direction input terminal respectively. They all belong to the internal amplifier. Pin 1 is connected to the reference voltage output terminal. 16-pin connection, so that pin 1 is high level, pin 2 is grounded, and pin 3 is the synchronous terminal. There is only one chip here, so pin 3 is not used, pin 4 is the oscillator output, and pin 5 is connected to the oscillation capacitor and Pin 6 is connected to the oscillation resistor to determine the oscillation frequency of the internal sawtooth wave, and the resist...

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Abstract

The invention provides a CD4069UB-based back-up power source inverter, which adopts the classical design of implementing the inverter through one time-inversion. First, a square wave generating circuit is formed by a CD4069UB peripheral circuit. Then, a square wave signal is divided into two paths, wherein a signal reversal phase is formed by one path of square wave signal passing through a phase inverter with the other path of square wave signal. Next, the two paths of inverted square wave signals pass through two basic common-emitter amplification circuits which are formed by two triodes, and the voltage of the square wave signals is amplified; and the inverted square wave signals pass through a full-bridge inverter circuit, and an alternating voltage which is generated by alternating on-off of an enhanced MOSFET field-effect transistor and then boosted by a power frequency transformer achieves inversion of the full-bridge inverter circuit. The CD4069UB-based back-up power source inverter can be used for loads.

Description

technical field [0001] The invention relates to an inverter, in particular to a backup power inverter based on CD4069UB. Background technique [0002] In the navigation system, the status of the backup power supply of the optical fiber attitude equipment is particularly prominent, because once the ship power is lost, the entire system will be in a paralyzed state, which will bring immeasurable losses to the entire navigation system. 12V lead-acid batteries are used as backup power for fiber optic attitude equipment, and the temperature control box of fiber optic attitude equipment works at AC 220V. The temperature control box continues to work when the ship's power is lost, so as to ensure that the fiber optic attitude equipment can continue to work with precision. The present invention is to complete the design work of an inverter circuit for converting DC 12V into AC 220V. [0003] Corresponding to the concept of rectification, the process of converting direct curre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/5387
CPCH02M7/5387
Inventor 王树鑫
Owner HARBIN MIMI RICE IND TECH CO LTD
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