TWM470449U

TWM470449U - The rotor short-circuit protection circuit for a variety of motor vehicle power generators

Info

Publication number: TWM470449U
Application number: TW101220086U
Authority: TW
Inventors: Zhao-Ting He; zhi-ping Lai
Original assignee: Vehicle Semiconductor Technology Company Ltd E
Priority date: 2012-10-18
Filing date: 2012-10-18
Publication date: 2014-01-11
Also published as: CN203387157U

Description

泛用於各式汽車發電機之轉子短路保護電路 Universally used for rotor short circuit protection circuit of various types of automobile generators

本創作係有關於一種泛用於各式汽車發電機之轉子短路保護電路，特別係指一種可應用於不同汽車發電機之轉子短路保護電路，使得當電流不流經轉子而產生短路時，可關閉功率晶體，避免其過熱損壞，以達到保護功率晶體者。 This creation is related to a rotor short circuit protection circuit widely used in various types of automobile generators, especially a rotor short circuit protection circuit that can be applied to different automobile generators, so that when a current does not flow through the rotor to generate a short circuit, Turn off the power crystal to avoid overheating damage to protect the power crystal.

汽車發電機系統工作電路，其主要係由電壓調節器、發電機轉子、定子線圈、一整流橋(D1-D6)、功率晶體及電池組成。汽車發動時，由內燃機皮帶帶動發電機運轉，同時激磁電流流入轉動中之發電機轉子，而產生磁場，發電機之定子感應此磁場而產生交流電，交流電經整流橋轉換為直流電輸出，此輸出對電池充電，提供汽車電子器件用電需求。 The working circuit of the automobile generator system is mainly composed of a voltage regulator, a generator rotor, a stator coil, a rectifier bridge (D1-D6), a power crystal and a battery. When the car is started, the generator is driven by the internal combustion engine belt, and the excitation current flows into the rotating generator rotor to generate a magnetic field. The stator of the generator senses the magnetic field to generate alternating current, and the alternating current is converted into a direct current output through the rectifier bridge. The battery is charged to provide power requirements for automotive electronics.

發電機工作電路中，發電機轉子所需的電流係分別由發電機之二個碳刷分別流入與流出，但發電機之二碳刷因不正常情況下產生短路時，將導致電流無法流經轉子，這種現象稱為轉子短路，當轉子發生短路的情況下，會產生超大電流流經功率晶體，在很短的時間內，功率晶體將過熱損壞，無法再控制發電機發電輸出，亦即失去電壓調節器穩壓功能，最後造成發電機過熱及汽車電壓失控之情形，而發電機調節器主要功能係在不同發電機轉速及不同負載下，控制發電機輸出量來穩定輸出電壓。 In the generator working circuit, the current required by the generator rotor is respectively flown into and out of the two carbon brushes of the generator, but when the two carbon brushes of the generator are short-circuited due to abnormal conditions, the current cannot flow. Through the rotor, this phenomenon is called rotor short circuit. When the rotor is short-circuited, it will generate excessive current flowing through the power crystal. In a short time, the power crystal will be overheated and damaged, and the generator output can no longer be controlled. That is to say, the voltage regulator voltage regulation function is lost, and finally the generator overheating and the vehicle voltage are out of control. The main function of the generator regulator is to control the generator output to stabilize the output voltage under different generator speeds and different loads.

請參閱第一圖，為一種習知A系統之發電機系統工作電路，普遍用於日系汽車發電機，其特點在於轉子1激磁電流由電池2之正端先經轉子1後，再經功率晶體3到電池的負端。比對於發電機上，轉子激磁電流則是由發電機之二個碳刷分別流入與流出，轉子激磁電流由碳刷電池端流入，經轉子從Field端流出。 Please refer to the first figure, which is a working circuit of a generator system of the conventional A system. It is commonly used in Japanese automotive generators. It is characterized in that the excitation current of the rotor 1 is passed from the positive end of the battery 2 through the rotor 1 and then through the power crystal 3 to the negative end of the battery. Compared with the generator, the rotor excitation current flows into and out of the two carbon brushes of the generator. The rotor excitation current flows from the carbon brush battery end and flows out from the Field end through the rotor.

功率晶體3藉由電壓調節器4之內部電路控制發電機之發電輸出量，當電壓調節器4偵測到電壓值過低時，則延長功率晶體3的導通時間，當電壓調節器4偵測到電壓值過高時，則縮短功率晶體3的導通時間。 The power crystal 3 controls the power generation output of the generator by the internal circuit of the voltage regulator 4, and when the voltage regulator 4 detects that the voltage value is too low, the conduction time of the power crystal 3 is extended, and when the voltage regulator 4 detects When the voltage value is too high, the on-time of the power crystal 3 is shortened.

請參閱第二圖，為第一圖之轉子短路保護系統，係由邏輯閘B、邏輯閘C、RS觸發器組成，SC端偵測外接之功率電晶體之汲極(Drain)端電壓值。當發生轉子短路時，SC端偵測到汲極(Drain)電壓達警告保護額定值時，經邏輯閘B與RS觸發器，由邏輯閘C送出信號，以關閉迴路輸出，而關閉功率晶體3，以啟動保護功率晶體之功能。 Please refer to the second figure, which is the rotor short circuit protection system of the first figure, which is composed of logic gate B, logic gate C and RS flip-flop. The SC end detects the voltage value of the drain terminal of the external power transistor. When the rotor short circuit occurs, when the SC terminal detects the Drain voltage to reach the warning protection rating, the logic gate B and the RS trigger send a signal from the logic gate C to close the loop output and turn off the power crystal. 3, to start the function of protecting the power crystal.

請參閱第三圖，為B系統之發電機系統工作電路，主要用於美系汽車發電機，其特點為轉子5激磁電流由電池正端6先經功率晶體7後，再經轉子5到電池負端，比對於發電機上，轉子5激磁電流則是由發電機之二碳刷分別流出，轉子5激磁電流由碳刷之Field端流入，經轉子5從接地端流出。 Please refer to the third figure, which is the generator system working circuit of the B system. It is mainly used for the American automobile generator. It is characterized in that the excitation current of the rotor 5 is passed from the positive terminal 6 of the battery through the power crystal 7 and then through the rotor 5 to the battery. At the negative end, the excitation current of the rotor 5 is respectively discharged from the two carbon brushes of the generator, and the excitation current of the rotor 5 flows from the field end of the carbon brush and flows out from the ground through the rotor 5.

請參閱第四圖，為第三圖之轉子短路保護系統，係由CSS比較器、AND4及S3組成，當A點與B點短路時，CSS比較器會偵測到A點電壓(即Source電壓)與VTssc比較達到額定區間值，則CSS比較器輸出高電位，經由AND4輸出控制信號，將S3開關切至Ipd，使閘極(Gate)為低電位，功率電晶體關閉迴路輸出，以啟動轉子短路保護功能。 Please refer to the fourth figure, which is the rotor short circuit protection system of the third figure. It is composed of CSS comparator, AND4 and S3. When the A point and the B point are short-circuited, the CSS comparator will detect the voltage at point A (ie, the Source voltage). When the rated interval value is reached compared with VTssc, the CSS comparator outputs a high potential, and the control signal is output via AND4, and the S3 switch is switched to Ipd to make the gate (Gate) low, and the power transistor closes the loop output to start the rotor. Short circuit protection.

本創作主要目的在提供一種泛用於各式汽車發電機之轉子短路保護電路，其可在轉子短路時產生保護作用，可關閉功率晶體，以避免功率晶體受損，且可同時適用於不同型式的發電機使用。 The main purpose of this creation is to provide a rotor short circuit protection circuit widely used in various types of automobile generators, which can protect the rotor from short circuit, can close the power crystal to avoid damage of the power crystal, and can be applied to different types at the same time. The generator is used.

為達上述之目的，本創作之特徵在於包括有一比較器單元，其係用以偵測該發電機之功率元件之汲極及源極電壓，並將汲極及源極之電壓差與內部之額定參考電壓作一比較後，用以輸出一指示信號，當汲極及源極之電壓差達到該額定參考電壓時，指示信號輸出一高電壓，當汲極及源極之電壓差未達到該額定參考電壓時，指示信號輸出一低電壓；及一數位邏輯系統，用以接收該比較器單元之指示信號，其設有一短路運作重設單元及功率晶體控制單元，當指示信號為高電壓時，此時該功率晶體控制單元關閉功率晶體，使其不導通，啟動轉子保護式，並啟動短路運作重設單元，規律偵測發電機轉子是否仍為短路狀態，當轉子為未短路時，功率晶體控制單元正常運作，短路運作重設單元為待命狀態。 For the above purposes, the present invention is characterized by including a comparator unit for detecting the drain and source voltages of the power components of the generator, and the voltage difference between the drain and the source and the internal After the comparison of the rated reference voltage, an indication signal is output. When the voltage difference between the drain and the source reaches the rated reference voltage, the indication signal outputs a high voltage, and when the voltage difference between the drain and the source does not reach the When the reference voltage is rated, the indication signal outputs a low voltage; and a digital logic system is configured to receive the indication signal of the comparator unit, and is provided with a short circuit operation reset unit and a power crystal control unit when the indication signal is high voltage At this time, the power crystal control unit turns off the power crystal to make it non-conducting, activates the rotor protection type, and starts the short-circuit operation resetting unit to regularly detect whether the generator rotor is still in a short-circuit state, and when the rotor is not short-circuited, the power The crystal control unit operates normally, and the short-circuit operation reset unit is in a standby state.

因此，不但具有保護轉子短路之效果，且可同時適用於不同型式之發電機工作電路。 Therefore, it not only has the effect of protecting the rotor short circuit, but also can be applied to different types of generator working circuits at the same time.

本創作之上述及其它目的、優點和特色由以下較佳實例之詳細說明並參考圖式俾得以更深入了解。 The above and other objects, advantages and features of the present invention are apparent from the following detailed description of the preferred embodiments.

本創作泛用於各式汽車發電機之轉子短路保護電路，其係用以保護當轉子短路時，可確保功率晶體不致受高熱損壞，進行確保發電機正常運作，該發電機之工作電路具有電壓調節器、整流橋、電池及具有一汲極及源極之功率晶體。 This creation is widely used in the rotor short circuit protection circuit of various types of automobile generators. In order to protect the rotor from short circuit, it can ensure that the power crystal is not damaged by high heat, and ensure the normal operation of the generator. The working circuit of the generator has a voltage regulator, a rectifier bridge, a battery and a power crystal with a drain and a source.

請參閱第五圖及第六圖，本創作泛用於各式汽車發電機之轉子短路保護電路之第一實施例，該發電機電路之轉子激磁電流由電池之正端先經轉子後，再經功率晶體到電池的負端，其包括有一比較器單元10及一數位邏輯系統20，其係用以保護發電機之轉子短路時，其工作系統中之功率晶體30不致受高溫而損壞，本實施例中轉子激磁電流由電池之正端先經轉子後，再經功率晶體30到電池的負端。 Referring to the fifth and sixth figures, the present invention is generally applied to a first embodiment of a rotor short circuit protection circuit for various types of automobile generators. The rotor excitation current of the generator circuit is passed through the rotor at the positive end of the battery. Passing the power crystal to the negative end of the battery, comprising a comparator unit 10 and a digital logic system 20 for protecting the rotor of the generator from short circuit, the power crystal 30 in the working system is not damaged by high temperature, In the embodiment, the rotor excitation current is passed through the rotor from the positive end of the battery and then through the power crystal 30 to the negative terminal of the battery.

比較器單元10，其係用以偵測功率晶體30之汲極31(Drain)及源極32(Source)電壓，並將汲極31(Drain)及源極32(Source)之電壓差與內部之額定參考電壓作一比較後，用以輸出一指示信號33，當汲極31(Drain)及源極32(Source)之電壓差達到該額定參考電壓時，指示信號33輸出一開啟訊號，該啟動訊號可為一高電壓或特定序列數位信號(如：8’b 10101010)；當汲極31(Drain)及源極32(Source)之電壓差未達到該額定參考電壓時，指示信號33輸出一關閉訊號，該關閉訊號可為低電壓或特定序列數位信號(如：8’b 00110011)。及數位邏輯系統20，用以接收比較器單元10之指示信號33，其設有一短路運作重設單元21及功率晶體控制單元22，當指示信號33為高電壓或特定序列數位信號(如：8’b 10101010)時，此時功率晶體控制單元22關閉功率晶體30，使其不導通，啟動轉子保護式，並啟動短路運作重設單元21，規律持續偵測發電機轉子是否仍為短路狀態，當轉子為未短路時，功率晶體控制單元22正常運作，短路運作重設單元21為待命狀態。 The comparator unit 10 is configured to detect the drain 31 and source 32 voltages of the power crystal 30 and the voltage difference between the drain 31 and the source 32 (Source) and the internal After the comparison of the rated reference voltage, an indication signal 33 is output. When the voltage difference between the drain 31 (Source) and the source 32 (Source) reaches the rated reference voltage, the indication signal 33 outputs an enable signal. The start signal can be a high voltage or a specific sequence digital signal (eg, 8'b 10101010); when the voltage difference between the drain 31 (Drain) and the source 32 (Source) does not reach the rated reference voltage, the indication signal 33 is output. A turn-off signal, which can be a low voltage or a specific sequence digital signal (eg, 8'b 00110011). And the digital logic system 20 is configured to receive the indication signal 33 of the comparator unit 10, which is provided with a short circuit operation reset unit 21 and a power crystal control unit 22, when the indication signal 33 is a high voltage or a specific sequence digital signal (eg: 8 'b 10101010), at this time, the power crystal control unit 22 turns off the power crystal 30 to make it non-conducting, activates the rotor protection type, and activates the short-circuit operation reset unit 21 to continuously detect the generator rotor. Whether it is still in the short circuit state, when the rotor is not short-circuited, the power crystal control unit 22 operates normally, and the short-circuit operation reset unit 21 is in a standby state.

請參閱第七圖及第八圖，本創作泛用於各式汽車發電機之轉子短路保護電路之第二實施例，該發電機電路之轉子激磁電流由電池正端先經功率晶體後，再經轉子到電池負端。其包括有一比較器單元40及一數位邏輯系統50，其係用以保護發電機之轉子短路時，其工作系統中之功率晶體60不致受高溫而損壞，本實施例中轉子激磁電流由電池正端先經功率晶體60後，再經轉子到電池負端。 Referring to the seventh and eighth figures, the present invention is generally applied to a second embodiment of a rotor short circuit protection circuit for various types of automobile generators. The rotor excitation current of the generator circuit is passed through the power crystal of the positive end of the battery, and then Pass the rotor to the negative end of the battery. The utility model comprises a comparator unit 40 and a digital logic system 50 for protecting the rotor of the generator from being short-circuited, and the power crystal 60 in the working system is not damaged by the high temperature. In this embodiment, the rotor excitation current is positive by the battery. The terminal passes through the power crystal 60 and then passes through the rotor to the negative terminal of the battery.

比較器單元40，其係用以偵測功率晶體60之汲極61(Drain)及源極62(Source)電壓，並將汲極61(Drain)及源極62(Source)之電壓差與內部之額定參考電壓作一比較後，用以輸出一指示信號63，當汲極61(Drain)及源極62(Source)之電壓差達到該額定參考電壓時，指示信號63輸出啟動訊號，該啟動訊號可為一高電壓或8’b 10101010或其他由0與1組成之特定序列數位信號；當汲極61(Drain)及源極62(Source)之電壓差未達到該額定參考電壓時，指示信號63輸出一關閉訊號，該關閉訊號可為低電壓或8’b 00110011或其他由0與1組成之其他特定序列數位信號 The comparator unit 40 is configured to detect the drain 61 (source) voltage of the power crystal 60 and the source 62 (Source) voltage, and the voltage difference between the drain 61 (Source) and the source 62 (Source) and the internal After the comparison of the rated reference voltage, an indication signal 63 is output. When the voltage difference between the drain 61 (Source) and the source 62 (Source) reaches the rated reference voltage, the indication signal 63 outputs an activation signal, and the activation is started. The signal can be a high voltage or 8'b 10101010 or other specific sequence digital signal composed of 0 and 1; when the voltage difference between the drain 61 (Source) and the source 62 (Source) does not reach the rated reference voltage, the indication Signal 63 outputs a turn-off signal, which can be a low voltage or 8'b 00110011 or other specific sequence digital signal consisting of 0 and 1.

數位邏輯系統50，用以接收比較器單元40之指示信號63，其設有一短路運作重設單元51及功率晶體控制單元52，當指示信號63為高電壓或特定序列數位信號(如：8’b 10101010)時，此時功率晶體控制單元52關閉功率晶體60，使其不導通，啟動轉子保護式，並啟動短路運作重設單元51，規律持續偵測發電機轉子是否仍為短路狀態，當轉子為未短路時，功率晶體控制單元52正常運作，短路運作重設單元51為待命狀態。 The digital logic system 50 is configured to receive the indication signal 63 of the comparator unit 40, which is provided with a short circuit operation reset unit 51 and a power crystal control unit 52, when the indication signal 63 is a high voltage or a specific sequence digital signal (eg: 8' b 10101010), at this time, the power crystal control unit 52 turns off the power crystal 60 to make it non-conducting, activates the rotor protection type, and activates the short-circuit operation reset unit 51 to continuously detect whether the generator rotor is still in a short-circuit state. When the rotor is not short-circuited, the power crystal control unit 52 is Normally, the short circuit operation reset unit 51 is in a standby state.

如是，本創作在轉子短路之情行下，為避免使功率晶體30、50受高溫而損壞，以影響發電機之正常運作，可以上述之系統方法解決，且該系統可適用各種不同發電機類型之工作電路使用。 If this is the case, in the case of rotor short circuit, in order to avoid damage to the power crystals 30, 50 due to high temperature, to affect the normal operation of the generator, the above system method can be solved, and the system can be applied to various generator types. The working circuit is used.

在較佳實施例之詳細說明中所提出之具體實施例僅為易於明瞭本創作之技術內容，並非將本創作狹義地限制於實施例，凡依本創作之精神及以下申請專利範圍之情況所作之種種變化實施均屬本創作之範圍。 The specific embodiments described in the detailed description of the preferred embodiments are merely for the purpose of the invention, and the invention is not limited to the embodiments, and the invention is not limited to the embodiments. The implementation of all kinds of changes is within the scope of this creation.

10、40‧‧‧比較器單元 10, 40‧‧‧ Comparator unit

31 61‧‧‧汲極 31 61‧‧‧汲polar

20、50‧‧‧數位邏輯系統 20, 50‧‧‧ digital logic system

32 62‧‧‧源極 32 62‧‧‧ source

30、60‧‧‧功率晶體 30, 60‧‧‧ power crystal

33 63‧‧‧指示信號 33 63‧‧‧Indication signal

21、51‧‧‧短路運作重設單元 21, 51‧‧‧ Short circuit operation reset unit

22、52‧‧‧功率晶體控制單元 22, 52‧‧‧ Power Crystal Control Unit

第一圖為習知A發電機之電路圖。 The first picture shows the circuit diagram of the conventional A generator.

第二圖為第一圖之轉子短路保護系統圖。 The second figure is a diagram of the rotor short circuit protection system of the first figure.

第三圖為習知B發電機之電路圖。 The third picture is a circuit diagram of a conventional B generator.

第四圖為第三圖之轉子短路保護系統圖。 The fourth figure is a diagram of the rotor short circuit protection system of the third figure.

第五圖為本創作泛用於各式汽車發電機之轉子短路保護電路之第一實施例電路圖。 The fifth figure is a circuit diagram of the first embodiment of the rotor short circuit protection circuit which is widely used in various types of automobile generators.

第六圖為本創作泛用於各式汽車發電機之轉子短路保護電路之第一實施例操作示意圖。 The sixth figure is a schematic diagram of the operation of the first embodiment of the rotor short circuit protection circuit which is widely used in various automobile generators.

第七圖為本創作泛用於各式汽車發電機之轉子短路保護電路之第二實施例電路圖。 The seventh figure is a circuit diagram of a second embodiment of the rotor short circuit protection circuit which is widely used in various types of automobile generators.

第八圖為本創作泛用於各式汽車發電機之轉子短路保護電路之第二實施例操作示意圖。 The eighth figure is a schematic diagram of the operation of the second embodiment of the rotor short circuit protection circuit which is widely used in various automobile generators.

10‧‧‧比較器單元 10‧‧‧ Comparator unit

20‧‧‧數位邏輯系統 20‧‧‧Digital Logic System

30‧‧‧功率晶體 30‧‧‧Power crystal

31‧‧‧汲極 31‧‧‧汲polar

32‧‧‧源極 32‧‧‧ source

33‧‧‧指示信號 33‧‧‧ indication signal

21‧‧‧短路運作重設單元 21‧‧‧Short-circuit operation reset unit

22‧‧‧功率晶體控制單元 22‧‧‧Power Crystal Control Unit

Claims

一種泛用於各式汽車發電機之轉子短路保護電路，該發電機之工作電路具有電壓調節器、整流橋、電池及具有一汲極及源極之功率晶體，該轉子短路保護電路包括有：一比較器單元，其係用以同步偵測該功率晶體之汲極及源極電壓，並將汲極及源極之電壓差與內部之額定參考電壓作一比較後，用以輸出一指示信號，當汲極及源極之電壓差達到該額定參考電壓時，該指示信號輸出一啟動訊號，當汲極及源極之電壓差未達到該額定參考電壓時，該指示信號輸出一關閉訊號；及一數位邏輯電路，用以接收該指示信號，當指示信號為啟動訊號時，則關閉該功率晶體，以啟動保護模式，當指示信號為關閉訊號時，則開啟該功率晶體，而不啟動保護式。 A rotor short circuit protection circuit widely used in various automobile generators, the working circuit of the generator has a voltage regulator, a rectifier bridge, a battery and a power crystal having a drain and a source, and the rotor short circuit protection circuit comprises: a comparator unit for synchronously detecting the drain and source voltages of the power crystal, and comparing the voltage difference between the drain and the source with an internal rated reference voltage for outputting an indication signal When the voltage difference between the drain and the source reaches the rated reference voltage, the indication signal outputs a start signal, and when the voltage difference between the drain and the source does not reach the rated reference voltage, the indication signal outputs a turn-off signal; And a digital logic circuit for receiving the indication signal. When the indication signal is an activation signal, the power crystal is turned off to activate the protection mode, and when the indication signal is a shutdown signal, the power crystal is turned on without starting protection. formula.

如申請專利範圍第1項之泛用於各式汽車發電機之轉子短路保護電路，其中當汲極及源極之電壓差達到該額定參考電壓時，則轉子短路，啟動訊號為高電壓，當汲極及源極之電壓差未達到該額定參考電壓時，轉子未短路，關閉訊號為低電壓。 For example, in the first application of the patent scope, the rotor short circuit protection circuit for various types of automobile generators is used. When the voltage difference between the drain and the source reaches the rated reference voltage, the rotor is short-circuited, and the start signal is high voltage. When the voltage difference between the drain and the source does not reach the rated reference voltage, the rotor is not short-circuited and the shutdown signal is low.

如申請專利範圍第2項之泛用於各式汽車發電機之轉子短路保護電路，其中該數位邏輯電路包括一短路運作重設單元及一功率晶體控制單元；當轉子短路未發生時，功率晶體控制單元正常作動，短路運作重設單元為待命狀態；當發生轉子短路時，啟動轉子短路保護功能，此時短路運作重設單元啟動，規律且持續偵測發電機轉子電路是否仍為短路狀態，功率晶體控制單元以轉子短路保護模式控制功率晶體開關。 For example, the second application of the patent scope is generally applied to a rotor short circuit protection circuit of various types of automobile generators, wherein the digital logic circuit comprises a short circuit operation reset unit and a power crystal control unit; when the rotor short circuit does not occur, the power crystal The control unit operates normally, and the short-circuit operation reset unit is in a standby state; when a rotor short-circuit occurs, the rotor short-circuit protection function is activated, and at this time, the short-circuit operation reset unit is started, and the generator rotor circuit is regularly and continuously detected whether the generator rotor circuit is still in a short-circuit state. The power crystal control unit controls the power crystal switch in a rotor short circuit protection mode.

如申請專利範圍第1項之泛用於各式汽車發電機之轉子短路保護電路，其中當汲極及源極之電壓差達到該額定參考電壓時，則轉子短路，啟動訊號為特定序列數位信號，當汲極及源極之電壓差未達到該額定參考電壓時，轉子未短路，關閉訊號為其他特定序列數位信號。 For example, the universal application of the scope of patent application is short for the rotors of various types of automobile generators. a circuit protection circuit, wherein when the voltage difference between the drain and the source reaches the rated reference voltage, the rotor is short-circuited, and the start signal is a specific sequence digital signal. When the voltage difference between the drain and the source does not reach the rated reference voltage, The rotor is not shorted and the off signal is a signal of other specific sequence digits.

如申請專利範圍第4項之泛用於各式汽車發電機之轉子短路保護電路，其中該啟動信號可為8’b 10101010或其他由0與1組成之特定序列數位信號；該關閉信號可為8’b 00110011或其他由0與1組成之其他特定序列數位信號。 For example, the fourth application of the patent scope is generally applied to a rotor short circuit protection circuit of various types of automobile generators, wherein the start signal may be 8'b 10101010 or other specific sequence digital signals composed of 0 and 1; the shutdown signal may be 8'b 00110011 or other specific sequence digital signals consisting of 0 and 1.

如申請專利範圍第1項之泛用於各式汽車發電機之轉子短路保護電路，該發電機之轉子激磁電流由電池之正端先經轉子後，再經功率晶體到電池的負端。 For example, the universal application of the patent scope is applied to the rotor short circuit protection circuit of various types of automobile generators. The rotor excitation current of the generator is passed through the rotor from the positive end of the battery and then through the power crystal to the negative end of the battery.

如申請專利範圍第1項之泛用於各式汽車發電機之轉子短路保護電路，該發電機之轉子激磁電流由電池正端先經功率晶體後，再經轉子到電池負端。 For example, in the first application of the patent scope, the rotor short circuit protection circuit of various types of automobile generators is used. The rotor excitation current of the generator is passed through the power crystal of the positive end of the battery, and then passes through the rotor to the negative end of the battery.