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Switch adjuster

A technology of switching regulators and regulators, which is applied in the direction of adjusting electrical variables, control/regulation systems, instruments, etc., and can solve problems such as failure to prevent voltage rises and electrical failures

Inactive Publication Date: 2009-12-23
CONTINENTAL AUTOMOTIVE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the voltage monitoring circuit 39 likewise requires the voltage present at the controller output 2 as an input signal, it may also not be able to prevent the voltage rise due to the faulty connection, whereby the above-mentioned failure of the load may occur. Fault

Method used

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  • Switch adjuster
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Embodiment Construction

[0027] figure 2 The circuit arrangement 30 of the switching regulator 1 according to the invention is shown modified relative to the prior art. The function and structure of the switching regulator 1 and in particular of the circuit arrangement 30 correspond to the arrangement of the prior art described in connection with FIG. 1 . Therefore, no further detailed description and explanation of the described function is given here.

[0028] The circuit arrangement 30 according to the invention has a monitoring device 50 in addition to the components present in circuit arrangements of the corresponding type. The monitoring device is connected via its output 54 to the switching device 47 . The monitoring device 50 has two outputs 52 , 53 , of which the input 52 is connected to the first terminal V and the second input 53 is connected to the second terminal FB. The second terminal FB has a direct connection to the output 2 of the switching regulator 1 . The terminal SEL, which i...

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Abstract

A switching regulator (1) designed as a fixed voltage regulator with a voltage divider (40) to which a regulated voltage can be supplied via a first terminal (V) is specified. The voltage signal on the output terminal (2) of the regulator is used to supply the output signal of the voltage divider (40) as an adjustment variable to the drive circuit (35, 31), which is evaluated with a reference voltage (Vref). In this case, the circuit arrangement (30) has a monitoring device (50) which, as a function of the voltage signal present at the first terminal (V), applies a voltage signal exceeding a reference voltage (Vref) as a new control variable to On the drive circuit (35, 31).

Description

technical field [0001] The invention relates to a switching regulator (1) designed as a fixed voltage regulator with a voltage divider (40) to which the regulator (2) can be supplied via a first terminal (V) The voltage signal at the output to supply the driver circuit (35, 31) with the output signal of the voltage divider (40) as a regulating variable, which is evaluated with a reference voltage (Vref). Background technique [0002] Switching regulators are used, for example, in the automotive sector for controlling and triggering passenger protection systems, such as airbags. The switching regulator is often designed as a so-called ASIC (Application Specific Integrated Circuit) in the form of an integrated circuit with a housing, wherein generally at least the energy storage element of the switching regulator is implemented as an external element. The energy storage element and the ASIC are arranged, for example, on a correspondingly designed printed circuit board in ord...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/156H02M1/00H02M1/32
CPCH02M3/156H02M1/32G05F1/10G05F1/40
Inventor H·奥尔洛吉R·韦伯
Owner CONTINENTAL AUTOMOTIVE GMBH