Multipath solid-state power switch digitized integration controlling method

A solid-state power switch, integrated control technology, applied in electronic switches, computer control, general control systems, etc., can solve the problems of large volume and weight, increased cost and loss, no digitization, integration, etc.

Active Publication Date: 2006-07-12
SHANGHAI AVIATION ELECTRIC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] 1. The upper and lower controllers only perform simple signal sampling, transmission and address translation, but the specific functions of solid-state power switches are as I 2 The tripping delay of T is not digitized and integrated, so it cannot effectively reduce the size and weight
[0005] 2. Adopt the upper and lower level structure, each sub-controller needs to be programmed separately, and the program modification

Method used

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  • Multipath solid-state power switch digitized integration controlling method
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  • Multipath solid-state power switch digitized integration controlling method

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Embodiment Construction

[0034] The multi-channel solid-state power switch is developed on the basis of the single-channel solid-state power switch, and some functions of the single-channel are reserved in the power part, such as drive protection function, leakage clamp function, and state detection function. The implementation method of this part is introduced in detail in the patent application for "DC solid-state power switch circuit" (application number 200510038027.0). The following mainly introduces the implementation method for the integrated control of multi-channel solid-state power switches. The upper and lower stages of the multi-channel solid-state power switch are shown in the figure figure 1 As shown, the multi-channel solid-state switch group has only one controller. On the one hand, the controller communicates with the upper computer through the bus to send switch control commands to the multiple solid-state switches under control. On the other hand, it obtains the multiple solid-state ...

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Abstract

The solid power switch control method uses MPU and PLD for integrated control and management, and completes the communication with bus of up machine. Wherein, using MPU to integrated control and protect the I2T and PLD to logic synthesize control signals of all channels; using level-control magnetic isolation drive protective circuit with voltage bootstrapping function; sharing one high-frequency demodulation signal for multipath drive; using rating code function to make MPU online recognize rating of every power plate and distinguish different I2T tripping curve. This invention increases power density of solid power switch, and reduces volume and weight.

Description

1. Technical field [0001] The invention relates to a digital integrated control method for multi-channel solid-state power switches, which belongs to the solid-state power switch control method in the technical field of power electronics and electric engineering. 2. Background technology [0002] The solid-state power switch is the basic component of the solid-state power distribution system. It has both switching and protection functions. It is used to switch on and off the circuit and realize the rapid limitation of over-current and short-circuit current. It is widely used in aircraft, tanks, civilian vehicles, ships, etc. There are a wide range of applications. The existing single-channel solid-state power switch can perform switching control and protection for one load. The solid-state power switch not only has over-current protection and short-circuit protection, but also can transmit data to the control center through the status signal, which is intelligent and remote...

Claims

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Application Information

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IPC IPC(8): H02H3/00H03K17/00G05B19/05G05B15/02
Inventor 王莉严仰光杨善水严杰王志强
Owner SHANGHAI AVIATION ELECTRIC
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